asimzeeshan / lowendscript

Bash scripts to set up/bootstrap low end virtual servers

Debian 6 VPS Script

Remove excess packages (apache2, sendmail, bind9, samba, nscd, etc) and install the basic components needed for a light-weight HTTP(S) web server:

• dropbear (SSH)
• iptables (firewall)
• dash (replaces bash)
• syslogd
• MySQL (v5.1+ W/O Innodb, configured for lowend VPS)
• PHP-FPM (v5.3+ with APC installed and configured)
• exim4 (light mail server)
• nginx (v1.0+ from dotdeb, configured for lowend VPS. Change worker_processes number in /etc/nginx/nginx.conf according to number of your CPUs)
• vim, nano, mc, htop, iftop & iotop (more to come...)

Includes sample nginx config files for PHP sites. You can create a basic site shell (complete with nginx vhost) like this:

./setup-debian.sh site example.com

When running the iptables or dropbear install you must specify a SSH port. Remember, port 22 is the default. It's recomended that you change this from 22 just to save server load from attacks on that port.

Usage (in recomended order)

Warning! This script is self destructive, it'll overwrite previous configs during reinstallation.

wget --no-check-certificate https://raw.github.com/Xeoncross/lowendscript/master/setup-debian.sh
$ ./setup-debian.sh dotdeb # not required if using Ubuntu
$ ./setup-debian.sh system
$ ./setup-debian.sh dropbear 22  # or any other port number
$ ./setup-debian.sh iptables
$ ./setup-debian.sh mysql
$ ./setup-debian.sh nginx
$ ./setup-debian.sh php
$ ./setup-debian.sh exim4
$ ./setup-debian.sh site example.com
$ ./setup-debian.sh wordpress example.com

... and now time for some extras

Webmin

$ ./setup-debian.sh webmin

vzfree

Supported only on OpenVZ only, vzfree reports correct memory usage

$ ./setup-debian.sh vzfree

Classic Disk I/O and Network test

Run the classic Disk IO (dd) & Classic Network (cachefly) Test

$ ./setup-debian.sh test

Neat python script to report memory usage per app

Neat python script to report memory usage per app

$ ./setup-debian.sh ps_mem

sources.list updating (Ubuntu only)

Updates Ubuntu /etc/apt/sources.list to default based on whatever version you are running

$ ./setup-debian.sh apt

Info on Operating System, version and Architecture

$ ./setup-debian.sh info

SSH-Keys

Either you want to generate ssh-keys (id_rsa) or a custom key for something (rsync etc) Note: argument is optional, if its left out, it will write "id_rsa" key

$ ./setup-debian.sh sshkey [optional argument_1]

Extras

Fixing locale on some OpenVZ Ubuntu templates

$ ./setup-debian.sh locale

Configure or reconfigure MOTD

$ ./setup-debian.sh motd

After installation

MySQL root is given a new password which is located in ~root/.my.cnf. After installing the full set, ram usage reaches ~40-45Mb. By default APC configured to use 16Mb for caching. To reduce ram usage, you may disable APC by moving or deleting the following file - /etc/php5/conf.d/apc.ini I recommend installing Ajenti and/or Webmin to manage your VPS. For security reasons delete, move or password protect "new_domain/public/phpinfo.php" file, which installed automatically on each new site installation.

Credits

• LowEndBox admin (LEA)
• Xeoncross,
• ilevkov,
• asimzeeshan
• and many others!

lowendscript's Issues

Please include scriptlet to fix 'perl: warning: Setting locale failed'

perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
        LANGUAGE = (unset),
        LC_ALL = (unset),
        LANG = "en_US.utf8"
    are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").

The above mentioned error appears on an OpenVZ container with Ubuntu template. Included the following scriptlet https://gist.github.com/3986652 to fix the issue

cat: /etc/*-release: No such file or directory

While on Debian architecture, the following error occurs while doing the following

root@testbed:~# ~/setup-debian.sh info
cat: /etc/*-release: No such file or directory

PHP Warning stating that module apc and suhosin are already loaded

PHP is outputting warning saying that Module 'apc' and Module 'suhosin' are already loaded

root@italy:~# php -v
PHP Warning:  Module 'apc' already loaded in Unknown on line 0
PHP Warning:  Module 'suhosin' already loaded in Unknown on line 0
PHP Warning:  PHP Startup: apc.shm_size now uses M/G suffixes, please update your ini files in Unknown on line 0
PHP 5.3.10-1ubuntu3.4 with Suhosin-Patch (cli) (built: Sep 12 2012 19:00:43)
Copyright (c) 1997-2012 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2012 Zend Technologies
    with Suhosin v0.9.33, Copyright (c) 2007-2012, by SektionEins GmbH

The reason is that we should take backups to a different location in the script

function install_php {
....
        mv /etc/php5/conf.d/apc.ini /etc/php5/conf.d/orig.apc.ini
....
        mv /etc/php5/conf.d/suhosin.ini /etc/php5/conf.d/orig.suhosin.ini

apc.shm_size now uses M/G suffixes, please update your ini files

root@italy:/etc/php5/fpm/conf.d# php -v
PHP Warning:  PHP Startup: apc.shm_size now uses M/G suffixes, please update your ini files in Unknown on line 0
PHP 5.3.10-1ubuntu3.4 with Suhosin-Patch (cli) (built: Sep 12 2012 19:00:43)
Copyright (c) 1997-2012 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2012 Zend Technologies
    with Suhosin v0.9.33, Copyright (c) 2007-2012, by SektionEins GmbH

The script needs to update /etc/php5/conf.d/apc.ini and replace

apc.shm_size=16

with

apc.shm_size=16M

Notice the 'M' at the end of the line