├── LICENSE ├── README.md ├── common-functions └── main.sh ├── deploy-essentials └── main.sh ├── docker-essentials └── main.sh ├── images ├── le-root-lock.png ├── le-ssh-port.png ├── le-upgrade-system.png └── le-user-creation.png ├── initial-tests ├── README.md └── lhb-essentials.sh └── reverse-proxy-jwilder ├── docker-compose.yaml ├── main.sh └── max_upload_size.conf /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | This repository contains various scripts (StackScripts) that are used to make Linode deployments much easier, dynamic and secure. There will be multiple scripts, intended for different purposes. Each script is going to be under the appropriate subdirectory and can be found directly from your Linode Dashboard under "Community StackScripts". 2 | 3 | # 1. deploy-essentials 4 | 5 | This script doesn't do much. It is currently tested under Ubuntu 20.04 LTS but *should* work with other Ubuntu flavours as well. The list of things that this script does are as follows 6 | 7 | ## A non-root user 8 | 9 | Using the `root` user always in a production environment isn't the best idea. But Linode doesn't have the option to create a non-root user while deploying a server. This script takes care of that. 10 | 11 | The user creation is optional because there are times when a small test needs to be performed, and it's easier to use the `root` user for the time being. If no password is provided, the `root` is reused. 12 | 13 | ![User Creation](images/le-user-creation.png) 14 | 15 | ## Upgrade the system 16 | 17 | This is again an optional setting, but defaults to yes. 18 | 19 | ![Upgrade System](images/le-upgrade-system.png) 20 | 21 | ## SSH configuration 22 | 23 | First it asks for a port number for the SSH daemon to run, defaults to port 22. I recommend setting it to something different and do remember that as ***this change won't be reflected on you dashboard***. 24 | 25 | ![SSH Port](images/le-ssh-port.png) 26 | 27 | Based on other information, the script configures other parts of SSH as well. For example if you add a user, `root` won't be accessible through SSH, if at least one public key is provided, password log in is disabled. 28 | 29 | ## Locks the root user 30 | 31 | You can also lock the `root` user right from the deployment screen. 32 | 33 | ![Lock Root User](images/le-root-lock.png) 34 | 35 | ## TODO 36 | 37 | - [ ] Make the script compatible with all flavours of Alpine, Debian, Arch, OpenSUSE, Fedora. 38 | - [ ] Optionally add automatic upgrades for certain distributions. 39 | - [ ] Make the scripts Linode independent. 40 | -------------------------------------------------------------------------------- /common-functions/main.sh: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env bash 2 | # StackScript Bash Library 3 | # 4 | # Copyright (c) 2010 Linode LLC / Christopher S. Aker 5 | # All rights reserved. 6 | # 7 | # 8 | # Redistribution and use in source and binary forms, with or without modification, 9 | # are permitted provided that the following conditions are met: 10 | # 11 | # * Redistributions of source code must retain the above copyright notice, this 12 | # list of conditions and the following disclaimer. 13 | # 14 | # * Redistributions in binary form must reproduce the above copyright notice, this 15 | # list of conditions and the following disclaimer in the documentation and/or 16 | # other materials provided with the distribution. 17 | # 18 | # * Neither the name of Linode LLC nor the names of its contributors may be 19 | # used to endorse or promote products derived from this software without specific prior 20 | # written permission. 21 | # 22 | # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY 23 | # EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 | # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 25 | # SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 26 | # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 27 | # TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 28 | # BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 | # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 30 | # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH 31 | # DAMAGE. 32 | # 33 | ########################################################### 34 | # System 35 | ########################################################### 36 | debian_upgrade () { 37 | printf "Running initial updates - This will take a while...\n" 38 | ( 39 | export DEBIAN_FRONTEND=noninteractive 40 | apt-get update >/dev/null && >/dev/null apt upgrade -y 41 | ) 42 | } 43 | system_update () { 44 | case "`detected_distro family`" in 45 | 'debian') 46 | # Force IPv4 and noninteractive upgrade after script runs to prevent 47 | # breaking nf_conntrack 48 | echo 'Acquire::ForceIPv4 "true";' > /etc/apt/apt.conf.d/99force-ipv4 49 | # Run initial updates for Debian-based systems, and do it quietly 50 | printf "Checking for initial updates...\n" 51 | DEBIAN_FRONTEND=noninteractive apt-get update -qq >/dev/null 52 | ;; 53 | 'redhat') 54 | # Run initial updates for RedHat-based systems, quietly 55 | # Also, add the 'epel-release' repository to yum 56 | printf "Running initial updates - This will take a while...\n" 57 | dnf --quiet -y update >/dev/null 58 | dnf --quiet -y install epel-release >/dev/null 59 | dnf --quiet repolist 60 | ;; 61 | esac 62 | } 63 | system_primary_ip () { 64 | local ip_address="$(ip a | awk '/inet / {print $2}')" 65 | echo $ip_address | cut -d' ' -f 2 | cut -d/ -f 1 66 | } 67 | function system_primary_ipv6 { 68 | ip -6 a | grep inet6 | awk '/global/{print $2}' | cut -d/ -f1 69 | } 70 | function system_private_ip { 71 | local ip_address="$(ip a | awk '/inet 192.168/ {print $2}')" 72 | echo $ip_address | cut -d ' ' -f 2 | cut -d/ -f 1 73 | } 74 | function get_rdns { 75 | # $1 - The IP address to query 76 | [ ! -e /usr/bin/host ] && system_install_package dnsutils 77 | host "$1" | awk '/pointer/ {print $5}' | sed 's/\.$//' 78 | } 79 | function get_rdns_primary_ip { 80 | # returns the reverse dns of the primary IP assigned to this system 81 | get_rdns $(system_primary_ip) 82 | } 83 | function system_set_hostname { 84 | # Sets the system's hostname 85 | # $1 - The hostname to define 86 | local -r hostname="$1" 87 | [ -z "$hostname" ] && { 88 | printf "Hostname undefined\n" 89 | return 1; 90 | } 91 | hostnamectl set-hostname "$hostname" 92 | } 93 | function system_add_host_entry { 94 | # $1 - The IP address to set a hosts entry for 95 | # $2 - The fqdn to set to the IP 96 | # $3 - The Hostname to set a hosts entry for 97 | local -r ip_address="$1" fqdn="$2" hostname="$3" 98 | [ -z "$ip_address" -o -z "$fqdn" ] && { 99 | printf "IP address and/or fqdn undefined in system_add_host_entry()\n" 100 | return 1; 101 | } 102 | echo "$ip_address $fqdn $hostname" >> /etc/hosts 103 | } 104 | detect_distro() { 105 | # Determine which distribution is in use on the Linode 106 | # $1 - required - Which value to echo back to the calling function 107 | 108 | [ -z "$1" ] && { 109 | printf "detect_distro() requires which value to be returned as its only argument\n" 110 | return 1 111 | } 112 | 113 | local distro="`awk -F= ' 114 | $1 ~ /^ID$/ { 115 | $2=gensub(/^"(.+)"/, "\\1", 1, $2); 116 | print $2 117 | } 118 | ' /etc/os-release`" 119 | 120 | local version="`awk -F= ' 121 | $1 ~ /^VERSION_ID$/ { 122 | $2=gensub(/^"(.+)"/, "\\1", 1, $2); 123 | print $2 124 | } 125 | ' /etc/os-release`" 126 | 127 | [ -f /etc/debian_version ] && local family='debian' 128 | [ -f /etc/redhat-release ] && local family='redhat' 129 | 130 | # Determine what the calling function wants and provide it 131 | case "$1" in 132 | 'distro') printf "%s\n" "$distro" ;; 133 | 134 | 'family') printf "%s\n" "$family" ;; 135 | 136 | 'version') printf "%s\n" "$version" ;; 137 | 138 | *) 139 | printf "This does not appear to be a supported distribution\n" 140 | return 1 ;; 141 | esac 142 | } 143 | system_set_timezone () { 144 | # Sets the timezone on the Linode 145 | # $1 - required - timezone to set on the system 146 | [ -z "$1" ] && { 147 | printf "system_set_timezone() requires the Linode's timezone as its only argument\n" 148 | return 1 149 | } 150 | timedatectl set-timezone "$1" 151 | } 152 | function system_install_package { 153 | # This function expands a bit on the old system_install_package() by allowing installation of a 154 | # list of packages, stored in an array, using a single command instead of requiring scripts 155 | # to call the function once for each package to be installed 156 | [ -z "$1" ] && { 157 | printf "system_install_package() requires the package(s) to be installed as its only argument\n" 158 | return 1; 159 | } 160 | local packages=("${@}") 161 | # Determine which package manager to use, and install the specified package 162 | case "${detected_distro['family']}" in 163 | 'debian') 164 | DEBIAN_FRONTEND=noninteractive apt-get -y install "${packages[@]}" -qq >/dev/null || { 165 | printf "One of the packages could not be installed via apt-get\n" 166 | printf "Check out /var/log/stackscript.log for more details\n" 167 | return 1; 168 | } 169 | ;; 170 | 'redhat') 171 | yum --quiet -y install "${packages[@]}" >/dev/null || { 172 | printf "One of the packages could not be installed via yum\n" 173 | printf "Check out /var/log/stackscript.log for more details\n" 174 | return 1; 175 | } 176 | ;; 177 | esac 178 | } 179 | function system_remove_package { 180 | # This function expands a bit on the system_remove_package() by allowing removal of a 181 | # list of packages, stored in an array, using a single command instead of requiring scripts 182 | # to call the function once for each package removed 183 | [ -z "$1" ] && { 184 | printf "system_remove_package() requires the package to be removed as its only argument\n" 185 | return 1; 186 | } 187 | local packages=("${@}") 188 | # Determine which package manager to use, and remove the specified package 189 | case "${detected_distro['family']}" in 190 | 'debian') 191 | DEBIAN_FRONTEND=noninteractive apt-get -y purge "${packages[@]}" -qq >/dev/null || { 192 | printf "One of the packages could not be removed via apt-get\n" 193 | printf "Check out /var/log/stackscript.log for more details\n" 194 | return 1; 195 | } 196 | ;; 197 | 'redhat') 198 | yum --quiet -y remove "${packages[@]}" >/dev/null || { 199 | printf "One of the packages could not be removed via yum\n" 200 | printf "Check out /var/log/stackscript.log for more details\n" 201 | return 1; 202 | } 203 | ;; 204 | esac 205 | } 206 | function system_configure_ntp { 207 | case "${detected_distro[distro]}" in 208 | 'debian') 209 | if [ "$(echo "${detected_distro[version_major]}")" -ge 10 ]; then 210 | systemctl start systemd-timesyncd 211 | fi 212 | ;; 213 | 'ubuntu') 214 | if [ "$(echo "${detected_distro[version_major]}")" -ge 20 ]; then 215 | systemctl start systemd-timesyncd 216 | fi 217 | ;; 218 | *) 219 | system_install_package ntp 220 | systemctl enable ntpd 221 | systemctl start ntpd 222 | ;; 223 | esac 224 | } 225 | ########################################################### 226 | # Users and Security 227 | ########################################################### 228 | function user_add_sudo { 229 | # $1 - required - username 230 | # $2 - required - password 231 | [ -z "$1" -o -z "$2" ] && { 232 | printf "No new username and/or password entered\n" 233 | return 1; 234 | } 235 | local -r username="$1" userpass="$2" 236 | [ ! -x /usr/bin/sudo ] && system_install_package sudo 237 | case "${detected_distro[family]}" in 238 | 'debian') 239 | # Add the user and set the password 240 | adduser "$username" --disabled-password --gecos "" 241 | echo "${username}:${userpass}" | chpasswd 242 | # Add the newly created user to the 'sudo' group 243 | adduser "$username" sudo >/dev/null 244 | ;; 245 | 'redhat') 246 | # Add the user and set the password 247 | useradd "$username" 248 | echo "${username}:${userpass}" | chpasswd 249 | # Add the newly created user to the 'wheel' group 250 | usermod -aG wheel "$username" >/dev/null 251 | ;; 252 | esac 253 | } 254 | function user_add_pubkey { 255 | # Adds the users public key to authorized_keys for the specified user. Make sure you wrap 256 | # your input variables in "{double quotes and curly braces}", or the key may not load properly 257 | # $1 - Required - username 258 | # $2 - Required - public key 259 | [ -z "$1" -o -z "$2" ] && { 260 | printf "Must provide a username and a public key\n" 261 | return 1; 262 | } 263 | local -r username="$1" userpubkey="$2" 264 | case "$username" in 265 | 'root') 266 | mkdir /root/.ssh 267 | echo "$userpubkey" >> /root/.ssh/authorized_keys 268 | return 1; 269 | ;; 270 | *) 271 | mkdir -p /home/"${username}"/.ssh 272 | chmod -R 700 /home/"${username}"/.ssh/ 273 | echo "$userpubkey" >> /home/"${username}"/.ssh/authorized_keys 274 | chown -R "${username}":"${username}" /home/"${username}"/.ssh 275 | chmod 600 /home/"${username}"/.ssh/authorized_keys 276 | ;; 277 | esac 278 | } 279 | function ssh_disable_root { 280 | # Disable root SSH access 281 | sed -i 's/PermitRootLogin yes/PermitRootLogin no/' /etc/ssh/sshd_config 282 | sed -i -e "s/#PermitRootLogin no/PermitRootLogin no/" /etc/ssh/sshd_config 283 | # Disable password authentication 284 | sed -i -e "s/PasswordAuthentication yes/PasswordAuthentication no/" /etc/ssh/sshd_config 285 | sed -i -e "s/#PasswordAuthentication no/PasswordAuthentication no/" /etc/ssh/sshd_config 286 | # Restart SSHd 287 | [ "${detected_distro[family]}" == 'debian' ] && systemctl restart ssh 288 | [ "${detected_distro[family]}" == 'redhat' ] && systemctl restart sshd 289 | } 290 | function configure_ufw_firewall { 291 | local -a ports=("$@") 292 | # Open the ports specified in "${@}" 293 | for i in "${ports[@]}"; do 294 | ufw allow "$i" 295 | done 296 | ufw reload 297 | } 298 | function configure_basic_firewall { 299 | case "${detected_distro[family]}" in 300 | 'debian') 301 | iptables --policy INPUT DROP 302 | iptables --policy OUTPUT ACCEPT 303 | iptables --policy FORWARD DROP 304 | iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT 305 | iptables -A INPUT -i lo -m comment --comment "Allow loopback connections" -j ACCEPT 306 | iptables -A INPUT -p icmp -m comment --comment "Allow Ping to work as expected" -j ACCEPT 307 | ip6tables --policy INPUT DROP 308 | ip6tables --policy OUTPUT ACCEPT 309 | ip6tables --policy FORWARD DROP 310 | ip6tables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT 311 | ip6tables -A INPUT -i lo -m comment --comment "Allow loopback connections" -j ACCEPT 312 | ip6tables -A INPUT -p icmpv6 -m comment --comment "Allow Ping to work as expected" -j ACCEPT 313 | ;; 314 | esac 315 | # Open port 22 for SSH 316 | add_port 'ipv4' 22 'tcp' 317 | add_port 'ipv6' 22 'tcp' 318 | save_firewall 319 | } 320 | function add_port { 321 | # $1 - required - IP standard to use (IPv4 or IPv6) 322 | # $2 - Required - Port to open 323 | [ -z "$1" ] && { 324 | printf "add_port() requires the IP standard (IPv4/IPv6) as its first argument\n" 325 | return 1; 326 | } 327 | [ -z "$2" ] && { 328 | printf "add_port() requires the port number as its second argument\n" 329 | return 1; 330 | } 331 | [ -z "$3" ] && { 332 | printf "add_port() requires the protocol (TCP/UDP) as its third argument\n" 333 | return 1; 334 | } 335 | local -r standard="${1,,}" port="$2" protocol="${3,,}" 336 | case "${detected_distro[family]}" in 337 | 'redhat') 338 | firewall-cmd --quiet --permanent --add-port="${port}/${protocol}" 339 | firewall-cmd --quiet --reload 340 | ;; 341 | *) 342 | if [ -x /usr/sbin/ufw ]; then 343 | ufw allow "$port/$protocol" 344 | else 345 | case "$standard" in 346 | 'ipv4') 347 | iptables -A INPUT -p "$protocol" --dport "$port" -m state --state NEW,ESTABLISHED,RELATED -j ACCEPT 348 | ;; 349 | 'ipv6') 350 | ip6tables -A INPUT -p "$protocol" --dport "$port" -m state --state NEW,ESTABLISHED,RELATED -j ACCEPT 351 | ;; 352 | esac 353 | fi 354 | ;; 355 | esac 356 | } 357 | function add_ports { 358 | # Opens a list of firewall ports for both IPv4 and IPv6 359 | local -a ports=("${@}") 360 | # Open the ports specified in "${@}" 361 | for i in "${ports[@]}"; do 362 | add_port 'ipv4' $i 'tcp' 363 | add_port 'ipv6' $i 'tcp' 364 | done 365 | } 366 | function save_firewall { 367 | case "${detected_distro[family]}" in 368 | 'debian') 369 | # Save the IPv4 and IPv6 rulesets so that they will stick through a reboot 370 | printf "Saving firewall rules for IPv4 and IPv6...\n" 371 | echo iptables-persistent iptables-persistent/autosave_v4 boolean true | sudo debconf-set-selections 372 | echo iptables-persistent iptables-persistent/autosave_v6 boolean true | sudo debconf-set-selections 373 | system_install_package iptables-persistent 374 | ;; 375 | 'redhat') 376 | firewall-cmd --quiet --reload 377 | ;; 378 | esac 379 | } 380 | function enable_fail2ban { 381 | # Install fail2ban using the appropriate package manager for your Linode's distribution 382 | system_install_package fail2ban 383 | # Configure fail2ban defaults 384 | cd /etc/fail2ban 385 | cp fail2ban.conf fail2ban.local 386 | cp jail.conf jail.local 387 | sed -i -e "s/backend = auto/backend = systemd/" /etc/fail2ban/jail.local 388 | systemctl enable fail2ban 389 | systemctl start fail2ban 390 | cd /root/ 391 | # Start fail2ban and enable it as a system service 392 | systemctl start fail2ban 393 | systemctl enable fail2ban 394 | } 395 | function enable_passwordless_sudo { 396 | # $1 - required - Username to grant passwordless sudo access to 397 | [ -z "$1" ] && { 398 | printf "enable_passwordless_sudo() requires the username to grant passwordless sudo access to as its only argument\n" 399 | return 1; 400 | } 401 | local -r username="$1" 402 | echo "$username ALL = (ALL) NOPASSWD: ALL" >> /etc/sudoers 403 | } 404 | function automatic_security_updates { 405 | # Configure autmoatic security updates for Debian-based systems 406 | if [ "${detected_distro[family]}" == 'debian' ]; then 407 | system_install_package unattended-upgrades 408 | cat > /etc/apt/apt.conf.d/20auto-upgrades < /etc/apache2/ports.conf.tmp 433 | cat /etc/apache2/ports.conf >> /etc/apache2/ports.conf.tmp 434 | mv -f /etc/apache2/ports.conf.tmp /etc/apache2/ports.conf 435 | fi 436 | ;; 437 | 'redhat') 438 | system_install_package httpd 439 | # Turn off KeepAlive and adjust the resource use settings. These settings 440 | # are a good starting point for a Linode 2GB 441 | echo "KeepAlive Off" >> /etc/httpd/conf/httpd.conf 442 | echo "" >> /etc/httpd/conf/httpd.conf 443 | echo "" >> /etc/httpd/conf/httpd.conf 444 | echo "" >> /etc/httpd/conf/httpd.conf 445 | echo " StartServers 4" >> /etc/httpd/conf/httpd.conf 446 | echo " MinSpareServers 20" >> /etc/httpd/conf/httpd.conf 447 | echo " MaxSpareServers 40" >> /etc/httpd/conf/httpd.conf 448 | echo " MaxClients 200" >> /etc/httpd/conf/httpd.conf 449 | echo " MaxRequestsPerChild 4500" >> /etc/httpd/conf/httpd.conf 450 | echo "" >> /etc/httpd/conf/httpd.conf 451 | # Enable and restart Apache 452 | systemctl enable httpd.service 453 | systemctl restart httpd.service 454 | ;; 455 | esac 456 | # Open TCP port 80 to allow Apache through the firewall 457 | add_port 'ipv4' 80 'tcp' 458 | } 459 | function apache_tune { 460 | # Tunes Apache's memory to use the percentage of RAM you specify, defaulting to 40% 461 | # $1 - the percent of system memory to allocate towards Apache 462 | if [ -z "$1" ]; 463 | then local -r percent=40 464 | else local -r percent="$1" 465 | fi 466 | system_install_package apache2-mpm-prefork 467 | local -r perprocmem=10 # the amount of memory in MB each apache process is likely to utilize 468 | local -r mem="$(grep MemTotal /proc/meminfo | awk '{ print int($2/1024) }')" # how much memory in MB this system has 469 | local maxclients="$((mem*percent/100/perprocmem))" # calculate MaxClients 470 | maxclients="${maxclients/.*}" # cast to an integer 471 | sed -i -e "s/\(^[ \t]*MaxClients[ \t]*\)[0-9]*/\1$maxclients/" /etc/apache2/apache2.conf 472 | systemctl restart apache2 473 | } 474 | function apache_virtualhost { 475 | # $1 - required - the hostname of the virtualhost to create 476 | [ -z "$1" ] && { 477 | printf "apache_virtualhost() requires the hostname as the first argument\n" 478 | return 1; 479 | } 480 | local -r vhostname="$1" 481 | [ "${detected_distro[family]}" == 'debian' ] && \ 482 | local -r vhostfile="/etc/apache2/sites-available/$vhostname.conf" \ 483 | [ "${detected_distro[family]}" == 'redhat' ] && \ 484 | local -r vhostfile="/etc/httpd/conf.d/vhost.conf" 485 | [ -e "$vhostfile" ] && { 486 | printf "$vhostfile already exists\n" 487 | return 1; 488 | } 489 | mkdir -p "/var/www/html/$vhostname/{public_html,logs}" 490 | # Configure the VirtualHost 491 | echo "" > "$vhostfile" 492 | echo " ServerName $vhostname" >> "$vhostfile" 493 | echo " DocumentRoot /var/www/html/$vhostname/public_html/" >> "$vhostfile" 494 | echo " ErrorLog /var/www/html/$vhostname/logs/error.log" >> "$vhostfile" 495 | echo " CustomLog /var/www/html/$vhostname/logs/access.log combined" >> "$vhostfile" 496 | echo "" >> "$vhostfile" 497 | case "${detected_distro[family]}" in 498 | 'debian') 499 | a2ensite "$vhostname" 500 | systemctl restart apache2 501 | ;; 502 | 'redhat') 503 | # Allow Apache in SELinux 504 | chown apache:apache -R "/var/www/html/$vhostname"/ 505 | find "/var/www/html/$vhostname"/ -type f -exec chmod 0644 {} \; 506 | find "/var/www/html/$vhostname"/ -type d -exec chmod 0755 {} \; 507 | chcon -t httpd_sys_content_t "/var/www/html/$vhostname" -R 508 | chcon -t httpd_sys_rw_content_t "/var/www/html/$vhostname" -R 509 | ;; 510 | esac 511 | } 512 | function apache_virtualhost_from_rdns { 513 | apache_virtualhost "$(get_rdns_primary_ip)" 514 | } 515 | function apache_virtualhost_get_docroot { 516 | # $1 - required - Hostname of the virtualhost being configured 517 | [ -z "$1" ] && { 518 | printf "apache_virtualhost_get_docroot() requires the hostname as the first argument\n" 519 | return 1; 520 | } 521 | local -r vhost="$1" 522 | # Determine distribution, and get the DocumentRoot out of the VirtualHost file 523 | case "${detected_distro[family]}" in 524 | 'debian') 525 | [ -e /etc/apache2/sites-available/"$vhost.conf" ] && \ 526 | echo "$(awk '/DocumentRoot/ {print $2}' /etc/apache2/sites-available/"$vhost".conf )" 527 | ;; 528 | 'redhat') 529 | [ -e /etc/httpd/conf.d/vhost.conf ] && \ 530 | echo "$(awk '/DocumentRoot/ {print $2}' /etc/httpd/conf.d/vhost.conf)" 531 | ;; 532 | esac 533 | } 534 | ########################################################### 535 | # mysql-server 536 | ########################################################### 537 | function mysql_install { 538 | # $1 - the mysql root password 539 | [ -z "$1" ] && { 540 | printf "mysql_install() requires the root pass as its only argument\n" 541 | return 1; 542 | } 543 | local -r db_root_password="$1" 544 | case "${detected_distro[family]}" in 545 | 'debian') 546 | echo "mysql-server mysql-server/root_password password ${db_root_password}" | debconf-set-selections 547 | echo "mysql-server mysql-server/root_password_again password ${db_root_password}" | debconf-set-selections 548 | case "${detected_distro[distro]}" in 549 | 'debian') 550 | if [ "${detected_distro[version]}" -ge 10 ]; 551 | then system_install_package mariadb-server 552 | else system_install_package mysql-server mysql-client 553 | fi 554 | ;; 555 | 'ubuntu') 556 | system_install_package mysql-server mysql-client 557 | ;; 558 | esac 559 | ;; 560 | 'redhat') 561 | system_install_package mariadb-server 562 | systemctl enable mariadb.service 563 | systemctl start mariadb.service 564 | ;; 565 | esac 566 | mysql_secure_install "$db_root_password" 567 | printf "Sleeping while MySQL starts up for the first time...\n" 568 | sleep 5 569 | } 570 | function mysql_configure { 571 | local -r db_name="$1" db_root_password="$2" db_username="$3" db_user_password="$4" 572 | mysql_create_database "$db_root_password" "$db_name" 573 | mysql_create_user "$db_root_password" "$db_username" "$db_user_password" 574 | mysql_grant_user "$db_root_password" "$db_username" "$db_name" 575 | } 576 | function mysql_tune { 577 | # Tunes MySQL's memory usage to utilize the percentage of memory you specify, defaulting to 40% 578 | # $1 - the percent of system memory to allocate towards MySQL 579 | if [ -z "$1" ]; 580 | then local -r percent=40 581 | else local -r percent="$1" 582 | fi 583 | case "${detected_distro[family]}" in 584 | 'debian') 585 | [ ! -f /etc/mysql/my.cnf ] && touch /etc/mysql/my.cnf 586 | sed -i -e 's/^#skip-innodb/skip-innodb/' /etc/mysql/my.cnf # disable innodb - saves about 100M 587 | ;; 588 | 'redhat') 589 | [ ! -f /etc/my.cnf ] && touch /etc/my.cnf 590 | sed -i -e 's/^#skip-innodb/skip-innodb/' /etc/my.cnf # disable innodb 591 | ;; 592 | esac 593 | local -r mem="$(awk '/MemTotal/ {print int($2/1024)}' /proc/meminfo)" # how much memory in MB this system has 594 | local -r mymem="$((mem*percent/100))" # how much memory we'd like to tune mysql with 595 | local -r mymemchunks="$((mymem/4))" # how many 4MB chunks we have to play with 596 | # mysql config options we want to set to the percentages in the second list, respectively 597 | local optlist=(key_buffer sort_buffer_size read_buffer_size read_rnd_buffer_size myisam_sort_buffer_size query_cache_size) 598 | local distlist=(75 1 1 1 5 15) 599 | for opt in "${optlist[@]}"; do 600 | case "${detected_distro[family]}" in 601 | 'debian') 602 | sed -i -e "/\[mysqld\]/,/\[.*\]/s/^${opt}/#${opt}/" /etc/mysql/my.cnf 603 | ;; 604 | 'redhat') 605 | sed -i -e "/\[mysqld\]/,/\[.*\]/s/^${opt}/#${opt}/" /etc/my.cnf 606 | ;; 607 | esac 608 | done 609 | for i in "${!optlist[*]}"; do 610 | val="$(echo | awk "{print int((${distlist[$i]} * ${mymemchunks}/100))*4}")" 611 | [ $val -lt 4 ] && val=4 612 | config="${config}\n${optlist[$i]} = ${val}M" 613 | done 614 | case "${detected_distro[family]}" in 615 | 'debian') 616 | sed -i -e "s/\(\[mysqld\]\)/\1\n${config}\n/" /etc/mysql/my.cnf 617 | systemctl restart mysql 618 | ;; 619 | 'redhat') 620 | sed -i -e "s/\(\[mysqld\]\)/\1\n${config}\n/" /etc/my.cnf 621 | systemctl restart mariadb 622 | ;; 623 | esac 624 | } 625 | function mysql_create_database { 626 | # $1 - the mysql root password 627 | # $2 - Required - the db name to create 628 | [ -z "$1" ] && { 629 | printf "mysql_create_database() requires the root pass as its first argument\n" 630 | return 1; 631 | } 632 | [ -z "$2" ] && { 633 | printf "mysql_create_database() requires the name of the database as the second argument\n" 634 | return 1; 635 | } 636 | local -r db_root_password="$1" db_name="$2" 637 | echo "CREATE DATABASE $db_name;" | mysql -u root -p"$db_root_password" 638 | } 639 | function mysql_create_user { 640 | # $1 - required - the MySQL database's root password 641 | # $2 - required - the MySQL user to create 642 | # $3 - required - the MySQL user's password 643 | [ -z "$1" ] && { 644 | printf "mysql_create_user() requires the root password as its first argument\n" 645 | return 1; 646 | } 647 | [ -z "$2" ] && { 648 | printf "mysql_create_user() requires username as the second argument\n" 649 | return 1; 650 | } 651 | [ -z "$3" ] && { 652 | printf "mysql_create_user() requires a password as the third argument\n" 653 | return 1; 654 | } 655 | local -r db_root_password="$1" db_username="$2" db_user_password="$3" 656 | echo "CREATE USER '$db_username'@'localhost' IDENTIFIED BY '$db_user_password';" | mysql -u root -p"$db_root_password" 657 | } 658 | function mysql_grant_user { 659 | # $1 - required - The MySQL database's root password 660 | # $2 - required - The MySQL user on whom to bestow privileges 661 | # $3 - required - The MySQL database's name 662 | [ -z "$1" ] && { 663 | printf "mysql_create_user() requires the root password as its first argument\n" 664 | return 1; 665 | } 666 | [ -z "$2" ] && { 667 | printf "mysql_create_user() requires username as the second argument\n" 668 | return 1; 669 | } 670 | [ -z "$3" ] && { 671 | printf "mysql_create_user() requires a database as the third argument\n" 672 | return 1; 673 | } 674 | local -r db_root_password="$1" db_username="$2" db_user_password="$3" 675 | echo "GRANT ALL PRIVILEGES ON $db_user_password.* TO '$db_username'@'localhost';" | mysql -u root -p"$db_root_password" 676 | echo "FLUSH PRIVILEGES;" | mysql -u root -p"$db_root_password" 677 | } 678 | function mysql_secure_install { 679 | # $1 - required - Root password for the MySQL database 680 | [ -z "$1" ] && { 681 | printf "mysql_secure_install() requires the MySQL database root password as its only argument\n" 682 | return 1; 683 | } 684 | local -r db_root_password="$1" 685 | system_install_package expect 686 | local -r secure_mysql=$( 687 | expect -c " 688 | set timeout 10 689 | spawn mysql_secure_installation 690 | expect \"Enter current password for root (enter for ):\" 691 | send \"$db_root_password\r\" 692 | expect \"Change the root password?\" 693 | send \"n\r\" 694 | expect \"Remove anonymous users?\" 695 | send \"y\r\" 696 | expect \"Disallow root login remotely?\" 697 | send \"y\r\" 698 | expect \"Remove test database and access to it?\" 699 | send \"y\r\" 700 | expect \"Reload privilege tables now?\" 701 | send \"y\r\" 702 | expect eof 703 | ") 704 | printf "$secure_mysql\n" 705 | } 706 | ########################################################### 707 | # PHP functions 708 | ########################################################### 709 | function php_install_with_apache { 710 | # Install PHP 711 | case "${detected_distro[family]}" in 712 | 'debian') 713 | case "${detected_distro[version]}" in 714 | '14.04' | '8') 715 | system_install_package php5 php5-mysql libapache2-mod-php5 716 | ;; 717 | *) 718 | system_install_package php php-mysql libapache2-mod-php 719 | ;; 720 | esac 721 | # Restart apache2 722 | systemctl restart apache2 723 | ;; 724 | 'redhat') 725 | system_install_package php php-pear 726 | system_install_package php-mysqli 727 | # Restart httpd 728 | systemctl restart httpd 729 | ;; 730 | esac 731 | } 732 | function php_tune { 733 | # Tunes PHP to utilize up to 32M per process 734 | case "${detected_distro[family]}" in 735 | 'debian') 736 | local -r PHPVER="$(php_detect_version)" 737 | sed -i'-orig' 's/memory_limit = [0-9]\+M/memory_limit = 32M/' /etc/php/"$PHPVER"/apache2/php.ini 738 | sed -i'-orig' 's/max_input_time = 60/max_input_time = 30/' /etc/php/"$PHPVER"/apache2/php.ini 739 | sed -i'-orig' 's/error_reporting = E_ALL & ~E_DEPRECATED & ~E_STRICT/error_reporting = E_COMPILE_ERROR | E_RECOVERABLE_ERROR | E_ERROR | E_CORE_ERROR/' /etc/php/"$PHPVER"/apache2/php.ini 740 | sed -i'-orig' 's/;error_log = php_errors.log/error_log = \/var\/log\/php\/error.log/' /etc/php/"$PHPVER"/apache2/php.ini 741 | ;; 742 | 'redhat') 743 | sed -i'-orig' 's/max_input_time = 60/max_input_time = 30/' /etc/php.ini 744 | sed -i'-orig' 's/error_reporting = E_ALL & ~E_DEPRECATED & ~E_STRICT/error_reporting = E_COMPILE_ERROR | E_RECOVERABLE_ERROR | E_ERROR | E_CORE_ERROR/' /etc/php.ini 745 | sed -i'-orig' 's/;error_log = php_errors.log/error_log = \/var\/log\/php\/error.log/' /etc/php.ini 746 | ;; 747 | esac 748 | # Create the log directory for PHP and give ownership to the Apache system user 749 | # Also, restart Apache 750 | mkdir /var/log/php 751 | case "${detected_distro[family]}" in 752 | 'debian') 753 | chown www-data /var/log/php 754 | systemctl restart apache2 755 | ;; 756 | 'redhat') 757 | chown apache /var/log/php 758 | systemctl restart httpd 759 | ;; 760 | esac 761 | } 762 | function php_detect_version { 763 | local -r php_version="$( 764 | php -v | awk -F. '/built/{print $1 $2}' | awk '{print $2}' 765 | )" 766 | printf "${php_version:0:1}.${php_version:1:1}\n" 767 | } 768 | ########################################################### 769 | # Postfix 770 | ########################################################### 771 | function postfix_install_loopback_only { 772 | # Installs postfix and configure to listen only on the local interface 773 | # Also allows for local mail delivery 774 | case "${detected_distro[family]}" in 775 | 'debian') 776 | echo "postfix postfix/main_mailer_type select Internet Site" | debconf-set-selections 777 | echo "postfix postfix/mailname string localhost" | debconf-set-selections 778 | echo "postfix postfix/destinations string localhost.localdomain, localhost" | debconf-set-selections 779 | system_install_package postfix 780 | /usr/sbin/postconf -e "inet_interfaces = loopback-only" 781 | ;; 782 | esac 783 | [ "${detected_distro[distro]}" == 'fedora' ] && system_install_package postfix 784 | # postfix was pre-installed and configured for local mail delivery in my 785 | # tests with CentOS 7, but still needed to be restarted or it produced 786 | # an error when sending mail 787 | systemctl restart postfix 788 | } 789 | function postfix_install_smtp_only { 790 | local -r fqdn="$1" 791 | echo "postfix postfix/mailname string $fqdn" | debconf-set-selections 792 | echo "postfix postfix/main_mailer_type string 'Internet Site'" | debconf-set-selections 793 | system_install_package mailutils postfix 794 | sed -i 's/inet_interfaces = all/inet_interfaces = loopback-only/' /etc/postfix/main.cf 795 | } 796 | ########################################################### 797 | # Other niceties! 798 | ########################################################### 799 | function goodstuff { 800 | # Removed the code to install wget, less, and vim, as they seem to be already installed 801 | # Will think of some things to add to this later 802 | # Enable the "ll" list long alias and colorful root Bash prompt 803 | sed -i -e 's/^#PS1=/PS1=/' /root/.bashrc 804 | sed -i -e "s/^#alias ll='ls -l'/alias ll='ls -al'/" /root/.bashrc 805 | } 806 | function all_set { 807 | [ "${detected_distro[family]}" == 'debian' ] && debian_upgrade 808 | printf "The StackScript has completed successfully.\n" 809 | touch "/root/.ss-complete" 810 | } 811 | ########################################################### 812 | # Utility functions 813 | ########################################################### 814 | function restartServices { 815 | # restarts services that have a file in /tmp/restart-* 816 | for service in $(ls /tmp/ | grep 'restart-' | cut -d- -f2-10); do 817 | # Restart the services and delete the restart file from /tmp 818 | systemctl restart "$service" 819 | rm -f "/tmp/restart-${service}" 820 | done 821 | } 822 | function randomString { 823 | if [ -z "$1" ]; 824 | then length=20 825 | else length="$1" 826 | fi 827 | # Generate a random string 828 | echo "$( cron 859 | echo "* 1 * * 1 /etc/certbot/certbot renew" >> cron 860 | crontab cron 861 | rm cron 862 | fi 863 | } 864 | ########################################################### 865 | # OS Detection Stuff 866 | ########################################################### 867 | # Store detected distribution information in a globally-scoped Associative Array 868 | readonly distro="`detect_distro 'distro' | tr [:upper:] [:lower:]`" 869 | readonly family="`detect_distro 'family' | tr [:upper:] [:lower:]`" 870 | readonly version="`detect_dstro 'version'`" 871 | readonly version_major="`echo $version | cut -d. -f1`" 872 | readonly version_minor="`echo $version | cut -d. -f2`" 873 | 874 | detected_distro(){ 875 | eval echo \$$1 876 | } 877 | 878 | # CAN'T USE ASSOCIATIVE ARRAYS IN POSIX SH 879 | 880 | # readonly -A detected_distro="( 881 | # [distro]="${dist,,}" \ 882 | # [family]="${fam,,}" \ 883 | # [version]="$(detect_distro 'version')" 884 | # [version_major]="$(detect_distro 'version' | cut -d. -f1)" 885 | # [version_minor]="$(detect_distro 'version' | cut -d. -f2)" 886 | # )" 887 | 888 | ########################################################### 889 | # Other functions 890 | ########################################################### 891 | function get_started { 892 | local -r subdomain="$1" domain="$2" ip="$3" 893 | if [ "$domain" ]; then 894 | if [ "$subdomain" ]; then 895 | local -r fqdn="${subdomain}.${domain}" 896 | else 897 | local -r fqdn="$domain" 898 | fi 899 | local -r hostname="$domain" 900 | else 901 | local -r hostname="$(dnsdomainname -A | awk '{print$1}')" 902 | local -r fqdn=$hostname 903 | fi 904 | # Set the hostname and Fully Qualified domain Name (fqdn) in the /etc/hosts file 905 | printf "Setting IP Address (%s), fqdn (%s), and hostname (%s) in /etc/hosts...\n" "$ip" "$fqdn" "$hostname" 906 | system_add_host_entry "$ip" "$fqdn" "$hostname" 907 | # Run initial updates 908 | system_update 909 | # Set the hostname 910 | system_set_hostname "$hostname" 911 | } 912 | function secure_server { 913 | # Performs basic security configurations for a new Linode 914 | # Follows the basic steps oulined in Linode's 'How to Secure Your Server' guide - 915 | # https://www.linode.com/docs/security/securing-your-server 916 | # 917 | # $1 - The username for the limited sudo user 918 | # $2 - The password for the limited sudo user 919 | # $3 - Public Key to be used for SSH authentication 920 | [ -z "$1" ] && { 921 | printf "secure_server() requires the username for the limited sudo user as its first argument\n" 922 | return 1; 923 | } 924 | [ -z "$2" ] && { 925 | printf "secure_server() requires the password for the limited sudo user as its second argument\n" 926 | return 1; 927 | } 928 | [ -z "$3" ] && { 929 | printf "secure_server() requires the Public Key to be used for SSH authentication as its third argument\n" 930 | return 1; 931 | } 932 | local -r user="$1" password="$2" pubkey="$3" 933 | # Create the user and add give it 'sudo' privileges 934 | # This function needs updating for systems that use the 'wheel' group 935 | user_add_sudo "$user" "$password" 936 | # Configure Public Key Authentication, disable root, and restart SSHd 937 | user_add_pubkey "$user" "$pubkey" 938 | ssh_disable_root 939 | # Configure basic firewall rules 940 | configure_basic_firewall 941 | # Install and enable fail2ban 942 | enable_fail2ban 943 | } 944 | ########################################################### 945 | # LAMP Stack functions 946 | ########################################################### 947 | function lamp_stack { 948 | # $1 - required - MySQL database name 949 | # $2 - required - MySQL database root password 950 | # $3 - required - MySQL database username 951 | # $4 - required - MySQL database user's password 952 | # $5 - optional - Hostname of the VirtualHost to configure 953 | [ -z "$1" ] && { 954 | printf "nc_lamp_stack() requires the MySQL database name as it's first argument\n" 955 | } 956 | [ -z "$2" ] && { 957 | printf "nc_lamp_stack() requires the MySQL database password as it's second argument\n" 958 | return 1; 959 | } 960 | [ -z "$3" ] && { 961 | printf "nc_lamp_stack() requires the MySQL database username as it's third argument\n" 962 | return 1; 963 | } 964 | [ -z "$4"} ] && { 965 | printf "nc_lamp_stack() requires the MySQL database user's password as it's fourth argument\n" 966 | return 1; 967 | } 968 | local -r db_name="$1" db_root_password="$2" db_username="$3" db_user_password="$4" 969 | [ "$5" ] && local -r vhost="$5" 970 | # Install Apache, MySQL, and PHP 971 | apache_install 972 | mysql_install "$db_root_password" 973 | php_install_with_apache 974 | # Configure the VirtualHost, if applicable 975 | [ "$vhost" ] && apache_virtualhost "$vhost" 976 | # Configure the MySQL database 977 | mysql_configure "$db_name" "$db_root_password" "$db_username" "$db_user_password" 978 | } 979 | ########################################################### 980 | # Wordpress functions 981 | ########################################################### 982 | function wordpress_install { 983 | # Installs the latest wordpress tarball from wordpress.org 984 | # $1 - required - The existing virtualhost to install into 985 | # $2 - required - The MySQL database root password 986 | # $3 - required - The Wordpress password 987 | [ -z "$1" ] && { 988 | printf "wordpress_install() requires the vitualhost as its first argument\n" 989 | return 1; 990 | } 991 | [ -z "$2" ] && { 992 | printf "wordpress_install() requires the MySQL database root password as its second argument\n" 993 | return 1; 994 | } 995 | [ -z "$3" ] && { 996 | printf "wordpress_install() requires the Wordpress password as its third argument\n" 997 | return 1; 998 | } 999 | local -r vhost="$1" db_root_password="$2" wp_pass="$3" 1000 | # We need wget for this. Check if its installed, and install it if not 1001 | [ ! -e /usr/bin/wget ] && system_install_package wget 1002 | # Determine the Document Root for the configured VirtualHost, and produce an 1003 | # error if it can't be determined 1004 | vpath="$(apache_virtualhost_get_docroot "$vhost")" 1005 | [ -z "$vpath" ] && { 1006 | printf "Could not determine DocumentRoot for %s\n" "$vhost" 1007 | return 1; 1008 | } 1009 | local -r wp_path="${vpath}wordpress" 1010 | # Download, extract, chown, and get our config file started 1011 | cd "$vpath" 1012 | wget http://wordpress.org/latest.tar.gz 1013 | tar xfz latest.tar.gz 1014 | cp "$wp_path"/wp-config-sample.php "$wp_path"/wp-config.php 1015 | 1016 | case "${detected_distro[family]}" in 1017 | 'debian') 1018 | # Set appropriate permissions 1019 | chown -R www-data: "${wp_path}" 1020 | chown www-data "${wp_path}"/wp-config.php 1021 | ;; 1022 | 'redhat') 1023 | if [ "${detected_distro[distro]}" == 'centos' ]; then 1024 | # CentOS 7's default repos contain an outdated PHP, but Wordpress 1025 | # requires the newer versions, so wee need to add a repo and a tool 1026 | system_install_package http://rpms.remirepo.net/enterprise/remi-release-7.rpm 1027 | system_install_package yum-utils 1028 | # Enable the repo which contains the latest PHP version 1029 | yum-config-manager --enable remi-php73 1030 | # Install PHP 7 1031 | system_install_package php php-pear php-mysql 1032 | fi 1033 | # More permissions 1034 | chown -R apache:apache "$wp_path" 1035 | chown apache "$wp_path"/wp-config.php 1036 | ;; 1037 | esac 1038 | # Even more permissions 1039 | chmod 640 "$wp_path"/wp-config.php 1040 | # Database configuration 1041 | mysql_create_database "$db_root_password" wordpress 1042 | mysql_create_user "$db_root_password" wordpress "$wp_pass" 1043 | mysql_grant_user "$db_root_password" wordpress wordpress 1044 | # Configuration file updates 1045 | for i in {1..4} 1046 | do sed -i "0,/put your unique phrase here/s/put your unique phrase here/$(randomString 50)/" "$wp_path"/wp-config.php 1047 | done 1048 | sed -i 's/database_name_here/wordpress/' "$wp_path"/wp-config.php 1049 | sed -i 's/username_here/wordpress/' "$wp_path"/wp-config.php 1050 | sed -i "s/password_here/$wp_pass/" "$wp_path"/wp-config.php 1051 | # Update the VirtualHost file to point to the wordpress installation and restart apache2 1052 | case "${detected_distro[family]}" in 1053 | 'debian') 1054 | sed -i 's/public_html/public_html\/wordpress/' /etc/apache2/sites-available/"$vhost".conf 1055 | systemctl restart apache2 1056 | ;; 1057 | 'redhat') 1058 | sed -i 's/public_html/public_html\/wordpress/' /etc/httpd/conf.d/vhost.conf 1059 | systemctl restart httpd 1060 | ;; 1061 | esac 1062 | } 1063 | function ufw_install { 1064 | # Install UFW and add basic rules 1065 | system_install_package ufw 1066 | ufw default allow outgoing 1067 | ufw default deny incoming 1068 | ufw allow ssh 1069 | ufw enable 1070 | systemctl enable ufw 1071 | # Stop flooding Console with messages 1072 | ufw logging off 1073 | } 1074 | function stackscript_cleanup { 1075 | [ "${detected_distro[family]}" == 'debian' ] && debian_upgrade 1076 | # Force IPv4 and noninteractive upgrade after script runs to prevent breaking nf_conntrack for UFW 1077 | echo 'Acquire::ForceIPv4 "true";' > /etc/apt/apt.conf.d/99force-ipv4 1078 | # Clean up 1079 | rm /root/StackScript 1080 | rm /root/ssinclude* 1081 | echo "Installation complete!" 1082 | } -------------------------------------------------------------------------------- /deploy-essentials/main.sh: -------------------------------------------------------------------------------- 1 | #! /bin/sh 2 | 3 | # Created by Debdut Chakraborty for Linux Handbook (andanotheremailid@gmail.com) 4 | # This program is free software: you can redistribute it and/or modify 5 | # it under the terms of the GNU General Public License as published by 6 | # the Free Software Foundation, either version 3 of the License, or 7 | # (at your option) any later version. 8 | 9 | # This program is distributed in the hope that it will be useful, 10 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | # GNU General Public License for more details. 13 | 14 | # You should have received a copy of the GNU General Public License 15 | # along with this program. If not, see . 16 | 17 | 18 | # UDF variables 19 | # 20 | # 21 | # 22 | # 23 | # 24 | 25 | logfile="/var/log/stackscript.log" 26 | 27 | error(){ 28 | for x in "$@"; do 29 | test -n "$x" && \ 30 | printf "[ERROR] ($(date '+%y-%m-%d %H:%M:%S')) %s\n" "$x" >> $logfile 31 | done 32 | } 33 | 34 | info(){ 35 | for x in "$@"; do 36 | test -n "$x" && \ 37 | printf "[INFO] ($(date '+%y-%m-%d %H:%M:%S')) %s\n" "$x" >> $logfile 38 | done 39 | } 40 | 41 | log(){ 42 | # log command error info 43 | local msg 44 | msg="$(2>&1 eval $1)" 45 | [ $? -ne 0 ] && \ 46 | error "$msg" "$2" || \ 47 | info "$msg" "$3" 48 | } 49 | 50 | ## User creation ## 51 | user_create() { 52 | # user_create user [password] 53 | local ret=0 54 | [ -z "$USER_PASSWORD" ] && \ 55 | USER_PASSWORD=$(awk -F: '$1 ~ /^root$/ { print $2 }' /etc/shadow) \ 56 | || USER_PASSWORD=$(openssl passwd -6 $USER_PASSWORD) 57 | ret=$? 58 | 59 | useradd -mG sudo \ 60 | -s /bin/bash \ 61 | -p $USER_PASSWORD \ 62 | $USER 63 | ret=$((ret+$?)) 64 | return $ret 65 | } 66 | 67 | ssh_config(){ 68 | # ssh_config ... 69 | local ret=0 70 | local sedopts="-i -E /etc/ssh/sshd_config -e 's/.*Port 22/Port $SSH_PORT/' \ 71 | -e 's/.*(PermitEmptyPasswords) .+/\1 no/' \ 72 | -e 's/.*(X11Forwarding) .+/\1 no/' \ 73 | -e 's/.*(ClientAliveInterval) .+/\1 300/' \ 74 | -e 's/.*(ClientAliveCountMax) .+/\1 2/' \ 75 | -e 's/.*(PubkeyAuthentication) .+/\1 yes/'" 76 | 77 | if [ -d /root/.ssh ]; then 78 | 79 | if [ "$USER" ]; then 80 | sedopts="$sedopts -e 's/.*(PermitRootLogin) .+/\1 no/'" 81 | cp -r /root/.ssh /home/$USER && \ 82 | chown -R $USER:$USER /home/$USER/.ssh && \ 83 | chmod 700 /home/$USER/.ssh 84 | ret=$? 85 | else 86 | sedopts="$sedopts -e 's/.*(PermitRootLogin) .+/\1 yes/'" 87 | fi 88 | 89 | sedopts="$sedopts -e 's/.*(PasswordAuthentication) .+/\1 no/'" 90 | 91 | else 92 | 93 | sedopts="$sedopts -e 's/.*(PasswordAuthentication) .+/\1 yes/'" 94 | fi 95 | 96 | eval sed $sedopts 97 | ret=$((ret+$?)) 98 | systemctl restart ssh 99 | ret=$((ret+$?)) 100 | return $ret 101 | } 102 | 103 | debian_upgrade(){ 104 | export DEBIAN_FRONTEND="noninteractive" 105 | >/dev/null 2>&1 apt update -qq && \ 106 | >/dev/null 2>&1 apt upgrade -qqy 107 | } 108 | 109 | log "user_create" \ 110 | "$USER creation failed." "$USER creation successful." 111 | log "ssh_config" \ 112 | "SSH configuration failed." "SSH configuration successful." 113 | 114 | [ "$ROOT_LOCK" = "yes" ] && { 115 | log "passwd -l root" \ 116 | "root lock failed." "root locked successfully." 117 | } 118 | 119 | [ "$UPGRADE" = "yes" ] && { 120 | log "debian_upgrade" \ 121 | "System upgrade failed." "System upgrade completed successfully." 122 | } 123 | -------------------------------------------------------------------------------- /docker-essentials/main.sh: -------------------------------------------------------------------------------- 1 | #! /bin/sh 2 | 3 | # Created by Debdut Chakraborty for Linux Handbook (andanotheremailid@gmail.com) 4 | # This program is free software: you can redistribute it and/or modify 5 | # it under the terms of the GNU General Public License as published by 6 | # the Free Software Foundation, either version 3 of the License, or 7 | # (at your option) any later version. 8 | 9 | # This program is distributed in the hope that it will be useful, 10 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | # GNU General Public License for more details. 13 | 14 | # You should have received a copy of the GNU General Public License 15 | # along with this program. If not, see . 16 | 17 | 18 | # UDF variables 19 | # 20 | # 21 | # 22 | # 23 | # 24 | # 25 | 26 | # 27 | . /root/ssinclude-737400 28 | 29 | install_docker(){ 30 | export DEBIAN_FRONTEND="noninteractive" 31 | 32 | >/dev/null 2>&1 apt install \ 33 | apt-transport-https ca-certificates \ 34 | curl gnupg-agent software-properties-common -qqy || return $? 35 | 36 | curl -fsSL https://download.docker.com/linux/ubuntu/gpg | \ 37 | sudo apt-key add - >/dev/null 2>&1 || return $? 38 | 39 | >/dev/null 2>&1 add-apt-repository \ 40 | "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" \ 41 | || return $? 42 | 43 | >/dev/null 2>&1 apt update -qq && \ 44 | >/dev/null 2>&1 apt install \ 45 | docker-ce docker-ce-cli \ 46 | containerd.io auditd jq docker-compose -qqy || return $? 47 | } 48 | 49 | docker_post_install(){ 50 | 51 | if [ "$DOCKER_GROUP" = "yes" ]; then 52 | usermod -aG docker $USER \ 53 | || error "$USER wasn't added to the docker group. usermod failed." \ 54 | && info "$USER was successfully added to the docker group." 55 | fi 56 | 57 | cat <> /etc/audit/rules.d/audit.rules 58 | -w /usr/bin/docker -p wa 59 | -w /var/lib/docker -p wa 60 | -w /etc/docker -p wa 61 | -w /lib/systemd/system/docker.service -p wa 62 | -w /lib/systemd/system/docker.socket -p wa 63 | -w /usr/bin/containerd -p wa 64 | -w /etc/docker/daemon.json -p wa 65 | EOF 66 | 67 | cat < /etc/docker/daemon.json 68 | { 69 | "icc": false, 70 | "live-restore": true, 71 | "no-new-privileges": true 72 | } 73 | EOF 74 | 75 | local ret=0 76 | 77 | systemctl enable docker >/dev/null 78 | ret=$(($ret+$?)) 79 | systemctl enable auditd >/dev/null 80 | return $(($ret+$?)) 81 | } 82 | 83 | 84 | log "install_docker" \ 85 | "Docker install failed." "Docker install successful." 86 | 87 | log "docker_post_install" \ 88 | "Docker post install configuration failed." "Docker post install configuration successful." 89 | -------------------------------------------------------------------------------- /images/le-root-lock.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/linuxhandbook/linode-stackscripts/69408a562f723f63d0444ca99d17193e08dab1cc/images/le-root-lock.png -------------------------------------------------------------------------------- /images/le-ssh-port.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/linuxhandbook/linode-stackscripts/69408a562f723f63d0444ca99d17193e08dab1cc/images/le-ssh-port.png -------------------------------------------------------------------------------- /images/le-upgrade-system.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/linuxhandbook/linode-stackscripts/69408a562f723f63d0444ca99d17193e08dab1cc/images/le-upgrade-system.png -------------------------------------------------------------------------------- /images/le-user-creation.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/linuxhandbook/linode-stackscripts/69408a562f723f63d0444ca99d17193e08dab1cc/images/le-user-creation.png -------------------------------------------------------------------------------- /initial-tests/README.md: -------------------------------------------------------------------------------- 1 | ## A StackScript for Docker with SSH Rules and other extras 2 | 3 | This is the first complete test script we first developed and tested at Linux Handbook to keep deployment times at an absolute minimum. Please note that this script is for educational purposes only. 4 | Better used as a reference, it is recommended that you refer to the other stackscript folders in this repository for more specific scripts derived from this one. That would help you stay focused only on your bare-minimum requirements and specific necessities. 5 | 6 | The script performs the following steps post a fresh deployment of an Ubuntu 20.04 based Linode. You can test it on other cloud servers as well but step 6 would require the root user to already have an SSH public key. 7 | 8 | ### 1. Allocates extra 2G swap 9 | 10 | Considering the server usually has 1-2GB of RAM, this can be an essential requirement. 11 | 12 | ### 2. Upgrades default packages 13 | 14 | Takes care of all the bundled Ubuntu packages so you won't have to after the server is deployed. 15 | 16 | ### 3. Installs essential packages to be production ready 17 | 18 | Docker Compose package provided by the Ubuntu repositories(includes Docker). 19 | Auditd tool is installed for setting audit rules for Docker. 20 | jq for docker network monitoring. 21 | 22 | ### 4. Updates auditd rules for docker 23 | 24 | Uses the `cat` command to update various auditing rules for Docker located in different files. 25 | 26 | ### 5. Creates a new user "tux" with sudo privileges* 27 | 28 | This particular step can be a temporary one after you have just deployed your server. *So please be cautious with this one. Make sure to create your own new user with or without sudo privileges and then remove the tux user. 29 | The password set for tux here is `KJHkkjsf4iu3ubHJHAajh`. 30 | 31 | ### 6. Saves SSH public keys for tux from Linode profile 32 | 33 | Copies the SSH public key from the root user before disabling the latter in the next step. 34 | 35 | ### 7. Hardens SSH rules 36 | 37 | Hardens the following SSH settings: 38 | 39 | - Changes the default port to 4566 40 | - Disables Root Login 41 | - Enables Public key authentication 42 | - Disables Password Authentication 43 | - Disallows Empty Passwords 44 | - Disables X11 Forwarding 45 | - Sets Client Alive Interval to 300 seconds 46 | - Sets Client Alive Maximum Count to 2 47 | 48 | ### 8. Enables automatic security and recommended updates 49 | 50 | By reconfiguring `unattended-upgrades`, this step enables automatic security updates alongwith the recommended updates as well. You can also enable live patching after deployment if required. 51 | 52 | ### 9. Installs Nginx with SSL support on Docker 53 | 54 | Since we use Jwilder Nginx with its Let's Encrypt Companion as a standard framework throughout our application deployment and testing, we included this as well. All you would now be needing is the application's Docker Compose configuration. 55 | So, this allows testing and deploying apps even faster! 56 | -------------------------------------------------------------------------------- /initial-tests/lhb-essentials.sh: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | 3 | # Created by Avimanyu Bandyopadhyay for Linux Handbook (avimanyu@gizmoquest.com) 4 | # Code fine-tuned by Debdut Chakraborty for Linux Handbook (andanotheremailid@gmail.com) 5 | # This program is free software: you can redistribute it and/or modify 6 | # it under the terms of the GNU General Public License as published by 7 | # the Free Software Foundation, either version 3 of the License, or 8 | # (at your option) any later version. 9 | 10 | # This program is distributed in the hope that it will be useful, 11 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 12 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 | # GNU General Public License for more details. 14 | 15 | # You should have received a copy of the GNU General Public License 16 | # along with this program. If not, see . 17 | 18 | # Let's log all the errors to a standard file 19 | exec 2>/var/log/stack-init.log 20 | 21 | #allocate an extra 2G swapfile 22 | dd if=/dev/zero of=/swapfile bs=1M count=2048 && \ 23 | chmod 600 /swapfile && \ 24 | mkswap /swapfile && \ 25 | echo "/swapfile none swap sw 0 2" >> /etc/fstab 26 | 27 | #upgrade all existing packages 28 | apt update && { 29 | apt upgrade -y || apt upgrade -y # Sometimes the upgrade process fails because of some network issues, retrying in such cases completes the upgrade. 30 | apt -y install docker-compose auditd jq 31 | } 32 | 33 | #update auditd rules 34 | cat <> /etc/audit/rules.d/audit.rules 35 | -w /usr/bin/docker -p wa 36 | -w /var/lib/docker -p wa 37 | -w /etc/docker -p wa 38 | -w /lib/systemd/system/docker.service -p wa 39 | -w /lib/systemd/system/docker.socket -p wa 40 | -w /usr/bin/containerd -p wa 41 | -w /etc/docker/daemon.json -p wa 42 | EOF 43 | 44 | #minimal docker daemon config 45 | cat < /etc/docker/daemon.json 46 | { 47 | "icc": false, 48 | "live-restore": true, 49 | "no-new-privileges": true 50 | } 51 | EOF 52 | 53 | systemctl enable --now docker # required for nginx-letsencrypt deployment 54 | systemctl enable auditd 55 | 56 | #create a user called tux with sudo privileges, save ssh public keys and harden sshd(make sure to change credentials after completing deployment) 57 | useradd -mG sudo -s /bin/bash -p `mkpasswd KJHkkjsf4iu3ubHJHAajh` tux 58 | 59 | #for the cp command to work, make sure to enable ssh key addition(assumed to be already existing on your linode profile) when creating the linode 60 | mkdir /home/tux/.ssh 61 | chmod 700 /home/tux/.ssh && chown tux:tux /home/tux/.ssh 62 | cp ~/.ssh/authorized_keys /home/tux/.ssh/authorized_keys 63 | chmod 600 /home/tux/.ssh/authorized_keys && chown tux:tux /home/tux/.ssh/authorized_keys 64 | 65 | sed -i -E -e 's/#Port 22/Port 4566/g' \ 66 | -e 's/(PermitRootLogin) yes/\1 no/g' \ 67 | -e 's/#(PubkeyAuthentication yes)/\1/g' \ 68 | -e 's/#(PasswordAuthentication) yes/\1 no/g' \ 69 | -e 's/#(PermitEmptyPasswords no)/\1/g' \ 70 | -e 's/(X11Forwarding) yes/\1 no/g' \ 71 | -e 's/#(ClientAliveInterval) 0/\1 300/g' \ 72 | -e 's/#(ClientAliveCountMax) 3/\1 2/g' \ 73 | /etc/ssh/sshd_config 74 | echo 'Protocol 2' >> /etc/ssh/sshd_config 75 | 76 | #enable automatic security and recommended updates 77 | sed -i /etc/apt/apt.conf.d/50unattended-upgrades -Ee 's/\/\/([[:space:]]+"\$\{distro_id\}:\$\{distro_codename\}-updates";)/\1/g' 78 | cat <>/etc/apt/apt.conf.d/20auto-upgrades 79 | APT::Periodic::Update-Package-Lists "1"; 80 | APT::Periodic::Unattended-Upgrade "1"; 81 | APT::Periodic::AutocleanInterval "7"; 82 | APT::Periodic::Download-Upgradeable-Packages "1"; 83 | EOF 84 | 85 | #install jwilder nginx with ssl on docker(remember to change default email in let's encrypt config after finishing deployment. 86 | #also update your DNS record with this server's IP 87 | #redirections- rename the file www.domain.com to your own and edit it as well accordingly(required if using a root domain and not necessary for subdomains) 88 | #after doing the above 2 changes you would require running `sudo docker-compose up -d` from the jwilder nginx directory as tux after finishing this deployment 89 | sudo -u tux bash << EOF 90 | mkdir /home/tux/jwilder-nginx-with-ssl 91 | wget https://raw.githubusercontent.com/avimanyu786/Jwilder-Nginx-With-LetsEncrypt/main/docker-compose.yml -O /home/tux/jwilder-nginx-with-ssl/docker-compose.yml 92 | echo 'client_max_body_size 1G;' >> /home/tux/jwilder-nginx-with-ssl/client_max_upload_size.conf 93 | echo 'DEFAULT_EMAIL=changeme@domain.com' >> /home/tux/jwilder-nginx-with-ssl/letsencrypt.env 94 | EOF 95 | docker network create net 96 | docker-compose -f /home/tux/jwilder-nginx-with-ssl/docker-compose.yml up -d 97 | 98 | #Reboot to finish updates 99 | sleep 6 100 | reboot 101 | -------------------------------------------------------------------------------- /reverse-proxy-jwilder/docker-compose.yaml: -------------------------------------------------------------------------------- 1 | version: "3.7" 2 | 3 | services: 4 | 5 | reverse_proxy: 6 | image: "jwilder/nginx-proxy" 7 | ports: 8 | - "80:80" 9 | - "443:443" 10 | volumes: 11 | - "html:/usr/share/nginx/html" 12 | - "dhparam:/etc/nginx/dhparam" 13 | - "vhost:/etc/nginx/vhost.d" 14 | - "certs:/etc/nginx/certs:ro" 15 | - "/var/run/docker.sock:/tmp/docker.sock:ro" 16 | - "./max_upload_size.conf:/etc/nginx/conf.d/max_upload_size.conf" 17 | labels: 18 | - "com.github.jrcs.letsencrypt_nginx_proxy_companion.nginx_proxy" 19 | restart: "on-failure" 20 | networks: ["net"] 21 | 22 | letsencrypt: 23 | image: "jrcs/letsencrypt-nginx-proxy-companion" 24 | depends_on: ["reverse_proxy"] 25 | volumes: 26 | - "acme:/etc/acme.sh" 27 | - "certs:/etc/nginx/certs:rw" 28 | - "vhost:/etc/nginx/vhost.d" 29 | - "html:/usr/share/nginx/html" 30 | - "/var/run/docker.sock:/var/run/docker.sock:ro" 31 | restart: "on-failure" 32 | networks: ["net"] 33 | 34 | volumes: 35 | acme: 36 | certs: 37 | html: 38 | vhost: 39 | dhparam: 40 | 41 | networks: 42 | net: 43 | external: true -------------------------------------------------------------------------------- /reverse-proxy-jwilder/main.sh: -------------------------------------------------------------------------------- 1 | #! /bin/sh 2 | 3 | # Created by Debdut Chakraborty for Linux Handbook (andanotheremailid@gmail.com) 4 | # This program is free software: you can redistribute it and/or modify 5 | # it under the terms of the GNU General Public License as published by 6 | # the Free Software Foundation, either version 3 of the License, or 7 | # (at your option) any later version. 8 | 9 | # This program is distributed in the hope that it will be useful, 10 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | # GNU General Public License for more details. 13 | 14 | # You should have received a copy of the GNU General Public License 15 | # along with this program. If not, see . 16 | 17 | 18 | # UDF variables 19 | # 20 | # 21 | # 22 | # 23 | # 24 | # 25 | 26 | # 27 | # 28 | . /root/ssinclude-759036 29 | 30 | jwilder_nginx_jrcs_letsencrypt(){ 31 | local compose_dir 32 | local ret=0 33 | 34 | [ "$USER" ] && compose_dir=/home/$USER/reverse-proxy || compose_dir=/root/reverse-proxy 35 | 36 | ( 37 | ret=0 38 | mkdir $compose_dir -p && cd $compose_dir 39 | for file in docker-compose.yaml max_upload_size.conf; do 40 | curl -sO \ 41 | https://raw.githubusercontent.com/linuxhandbook/linode-stackscripts/main/reverse-proxy-jwilder/$file 42 | ret=$(($ret+$?)) 43 | done 44 | docker network create net 45 | ret=$(($ret+$?)) 46 | docker-compose up -d >/dev/null 47 | exit $(($ret+$?)) 48 | ) 49 | ret=$(($ret+$?)) 50 | 51 | [ "$USER" ] && chown -R $USER:$USER $compose_dir 52 | 53 | return $ret 54 | } 55 | 56 | log "jwilder_nginx_jrcs_letsencrypt" \ 57 | "Reverse proxy deployment failed." "Reverse proxy successfully deployed." 58 | -------------------------------------------------------------------------------- /reverse-proxy-jwilder/max_upload_size.conf: -------------------------------------------------------------------------------- 1 | client_max_body_size 1G; --------------------------------------------------------------------------------