2014 Server Migration

Revision as of 03:07, 29 June 2014 by Vance (Talk | contribs)

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This page is to collect information about our current configuration and options for switching to a new server going forward. Please feel free to edit to add missing information or correct errors.

Server selection

On 2014-06-24, the WPLUG board decided to go with the $10/month Linode plan, locating in their Atlanta datacenter. This plan will approximately halve our current costs and still provide sufficient resources.

OS selection

The WPLUG server currently runs on CentOS 5. This is still supported, but it would make sense to choose a newer distro while we're doing the server switch.

Service enumeration

Services that are currently running on the WPLUG Linode server. These should include things that are user-facing only, not infrastructure.

  • E-mail (Postfix)
  • Mailing lists (Mailman)
  • Wiki (MediaWiki)
  • Blog (Wordpress)
  • Monkeybot IRC bot (infobot) - maybe consider different bot software that can import monkeybot's database?
  • RSS aggregator (Tiny Tiny RSS, tt-rss)

Infrastructure software which supports the services above.

  • Web server (Apache) - it would be possible to use Nginx instead, but I (Vance) am not familiar with setting it up
  • PHP (Apache mod_php) for MediaWiki, Wordpress, and TT-RSS
  • Python for Mailman
  • Perl for Monkeybot
  • MySQL for MediaWiki, Wordpress, and TT-RSS - likely possible to use MariaDB instead, other DBMS not recommended for use with MediaWiki
  • Greylisting daemon (Postgrey)
  • Fail2ban - could maybe use denyhosts instead

Support lifetime

Software availability

This table is to track, for the different distros under consideration, whether the software we need is available within its repositories. We want to minimize the number of applications which have to be maintained manually.


  • B: in distro's base repository
  • A: in an additional repository provided by the distro
  • T: in a third-party repository
  • ~: not available in any known repository
  •  ?: availability unknown
CentOS 6 CentOS 7 Debian 7 Ubuntu 14.04
postfix B 2.6 B 2.10 B 2.9 B 2.11
mailman B 2.1 B 2.1 B 2.1 B 2.1
postgrey T 1.34rf, EPEL T 1.34EPEL B 1.34 A 1.34
mediawiki T 1.19EPEL ? B 1.19 A 1.19
wordpress T 3.9EPEL T 3.9EPEL B 3.6 A 3.8
infobot ~ ? (not B or A) ? (not B or A) ~
tt-rss ~ ? (not B or A) ? (not B or A) A 1.11
apache B 2.2 / A 2.4 B 2.4 B 2.2 B 2.4
nginx A 1.4 ? B 1.2 B/A 1.4
php5 B 5.3 / A 5.4, 5.5 B 5.4, T 5.5.13Remi B 5.4 B 5.5
python2 B 2.6 / A 2.7 B 2.7.5 B 2.7 B 2.7
python3 A 3.3 ? B 3.2 B 3.4
perl5 B 5.10 B 5.16 B 5.14 B 5.18
mysql B 5.1 / A 5.5 ? B 5.5 B 5.5 / A 5.6
mariadb A 5.5 B 5.5 ? (not B or A) A 5.5
fail2ban T 0.8.7rf, 0.8.11EPEL T 0.8.7rf B 0.8.6 A 0.8.11
denyhosts T 2.6rf, EPEL T 2.6rf B 2.6 ~

Third-party repositories:

Migration steps

Put some stuff here.


We have an archive of static web pages from the pre-2007 server "penguin" - it would be nice to make this history available somehow.