Bootstraping WordPress/Nginx/PHP/MySQL on a Cheap VPS with lowendscript
Author: lowendscript From: http://www.lowendbox.com
Here is a quick step by step on how to set up a WordPress blog running on Nginx, PHP/FastCGI and MySQL on a low end box. Let’s assume that you are going to set up a blog on hostname “blog.example.com“.
Go and buy a cheap VPS. Yes, you know where to find cheap virtual servers under $7/month, don’t you? 🙂 I am using my 6 pound/year RackVM VPS with 128MB memory to test this script, and the performance turns out to be quite good. YMMV.
Make sure it is either a Debian or a Ubuntu distro though.
After gaining root access to your VPS,
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# wget --no-check-certificate https://github.com/lowendbox/lowendscript/raw/master/setup-debian.sh # bash setup-debian.sh system # bash setup-debian.sh exim4 # bash setup-debian.sh nginx # bash setup-debian.sh mysql # bash setup-debian.sh php # bash setup-debian.sh wordpress blog.example.com |
Now altering your DNS entry to point blog.example.com to your new VPS (or alter your local /etc/hosts entry). Navigate to it from your browser, and you should be presented with WordPress set up page. Fill in your blog’s name, admin’s password and contact email, and your new WordPress is online!
Just repeat the last step (running bash setup-debian.sh wordpress
That’s it!
Software Stack
It’s pretty similar to my own stack that runs LowEndBox.com.
dropbear to replace openssh. Invoked from xinetd.
inetutils-syslogd to replace rsyslog.
exim4 to replace sendmail (if installed). Re-configured to allow Internet delivery.
cron
nginx
mysql. Re-configured to remove innodb support, remove query cache and reduce key buffer size.
php with built-in FastCGI interface. Running only 1 child process and respawn after 5,000 requests.
The lowendscript is also
Removing some commonly bundled applications that should not be there in the first place for a minimal distro (apache2, sendmail, bind9, samba, nscd, etc).
MySQL root is given a new password (which can be found in ~root/.my.cnf)
Installing each WordPress site under /var/www/
I have to say that it is still “work in progress”, but if you want to figure out the internals please check the source code of that bash script.
Memory Usage
I am testing the same script on the following 3 systems:
Ubuntu 10.04 64bit (RackVM)
Debian 5 64bit (RackVM)
Debian 5 32bit (VPSGuy)
They are all showing different memory usage. I am taking the snapshot of memory usage AFTER 10 page loads on the WordPress blog that has been created to ensure PHP process is fully loaded.
Ubuntu 10.04 64bit
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root@ubuntu64:~# ps aux USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 1 0.0 0.5 23300 1536 ? Ss 06:58 0:00 init root 10124 0.0 0.5 23576 1496 ? Ss 07:34 0:00 dropbear -i root 15742 0.0 0.7 17880 1944 pts/0 Ss 07:35 0:00 -bash root 15754 0.0 0.4 14960 1084 pts/0 R+ 07:35 0:00 ps aux root 24290 0.0 0.3 12508 788 ? S 07:22 0:00 /usr/sbin/syslo root 24524 0.0 0.3 21064 1004 ? Ss 07:22 0:00 cron root 25689 0.0 0.3 19512 972 ? Ss 07:22 0:00 /usr/sbin/xinet mysql 26346 0.0 4.2 61812 11248 ? Ssl 07:23 0:00 /usr/sbin/mysql www-data 27920 0.0 2.6 87768 7048 ? Ss 07:23 0:00 /usr/bin/php-cg www-data 27922 0.5 15.0 122460 39432 ? S 07:23 0:04 /usr/bin/php-cg 103 30162 0.0 0.3 44356 1000 ? Ss 07:24 0:00 /usr/sbin/exim4 root 30267 0.0 0.3 28104 932 ? Ss 07:24 0:00 nginx: master p www-data 30268 0.0 0.8 28744 2196 ? S 07:24 0:00 nginx: worker p |
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root@ubuntu64:~# free total used free shared buffers cached Mem: 262144 100500 161644 0 0 0 -/+ buffers/cache: 100500 161644 Swap: 0 0 0 |
Memory Usage: 98.1MB
Debian 5 64bit
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debian64:~# ps aux USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 1 0.0 0.2 10304 740 ? Ss 12:22 0:00 init [2] 106 1414 0.0 0.3 42708 1004 ? Ss 12:26 0:00 /usr/sbin/exim4 www-data 1655 0.0 2.5 72028 6560 ? Ss 12:26 0:00 /usr/bin/php-cg www-data 1657 0.9 11.7 98500 30928 ? S 12:26 0:03 /usr/bin/php-cg www-data 3126 0.0 0.7 28380 1912 ? S 12:29 0:00 nginx: worker p root 7668 0.1 0.5 23340 1528 ? Rs 12:31 0:00 dropbear -i root 7831 0.0 0.6 17472 1716 pts/0 Ss 12:32 0:00 -bash root 7836 0.0 0.3 14720 980 pts/0 R+ 12:32 0:00 ps aux root 20169 0.0 0.3 18540 936 ? Ss 12:22 0:00 /usr/sbin/cron root 24462 0.0 0.2 12236 732 ? S 12:25 0:00 /usr/sbin/syslo root 25637 0.0 0.3 19256 952 ? Ss 12:25 0:00 /usr/sbin/xinet root 25694 0.0 0.5 28380 1552 ? Ss 12:25 0:00 nginx: master p root 32427 0.0 0.2 3872 588 ? S 12:26 0:00 /bin/sh /usr/bi mysql 32466 0.0 3.0 50420 8124 ? Sl 12:26 0:00 /usr/sbin/mysql root 32468 0.0 0.2 3772 592 ? S 12:26 0:00 logger -p daemo |
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debian64:~# free total used free shared buffers cached Mem: 262144 61008 201136 0 0 0 -/+ buffers/cache: 61008 201136 Swap: 0 0 0 |
Memory Usage: 59.6MB
Debian 5 32bit
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debian32:~# ps aux USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 1 0.0 0.1 1980 688 ? Ss 23:34 0:00 init [2] root 14064 0.0 0.1 1704 512 ? S 23:52 0:00 /bin/sh /usr/bi mysql 14119 0.0 1.7 20056 6968 ? Sl 23:52 0:00 /usr/sbin/mysql root 14120 0.0 0.1 1628 536 ? S 23:52 0:00 logger -p daemo www-data 15968 0.0 1.2 16352 4996 ? Ss 23:53 0:00 /usr/bin/php-cg www-data 15971 0.5 4.7 29436 18576 ? S 23:53 0:01 /usr/bin/php-cg root 16040 0.0 0.3 2700 1464 ? Rs 23:53 0:00 dropbear -i root 16119 0.0 0.1 1880 684 ? S 23:44 0:00 /usr/sbin/syslo root 16133 0.0 0.3 2780 1536 pts/0 Ss 23:54 0:00 -bash root 17728 0.0 0.2 2352 896 ? Ss 23:45 0:00 /usr/sbin/xinet www-data 17758 0.0 0.3 5004 1488 ? S 23:54 0:00 nginx: worker p root 27834 0.0 0.3 4548 1236 ? Ss 23:47 0:00 nginx: master p root 28146 0.0 0.2 2296 896 pts/0 R+ 23:57 0:00 ps aux 102 32065 0.0 0.2 6104 900 ? Ss 23:49 0:00 /usr/sbin/exim4 |
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debian32:~# free total used free shared buffers cached Mem: 262144 44272 217872 0 0 0 -/+ buffers/cache: 44272 217872 Swap: 0 0 0 |
Memory Usage: 43.2MB