sysadmin

Installing Trac

June 11, 2008

We’re already using 37 signals Basecamp for project management. It works well for collaborative work and management of distributed teams but is tedious when used as a feature tracker. Today we discussed the need for a bug/issue tracker. In the past, we’ve considered RT since it integrates with our existing email flow. But frankly, RT [...]

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Request / bug ticketing

May 23, 2007

I’m exploring the use of RT at WB. Here are some quick notes on installation: ./configure –prefix=/usr/local/rt3 \ –with-apachectl=/usr/local/apache/bin/apachectl make testdep sudo make install Set up etc/RT_SiteConfig.pm… See the RT wiki for more details.

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Ruby on Rails on Mac OS X

June 26, 2006

Just came across some quick docs for installing Ruby, Rubygems, and Rails on OS X.

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Building Perl 5.8.8 on x86_64

June 23, 2006

I’ve been having a bear of a time building Perl 5.8.8 on x86_84. After much Googling and trying to recreate the build parameters that Red Hat used for the supplied 5.8.5, I finally stumbled on the answer. Basically, the Configure script isn’t smart enough to guess the lib directories for x86_64 are all stored under [...]

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Monitoring services with snmp and rrd

February 10, 2006

O’Reilly tutorial An actually simple tutorial The inspiration for this little project

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performance tuning httpd

February 8, 2006

Today I’m working on performance tuning httpd on the primary production server. It has totally been out of hand this week. 1. Increase MinSpareServers and MaxSpareServers.

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profiling memory usage

February 8, 2006

Just came across this interesting mailing list post on profiling memory usage on Linux.

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MediaWiki and reverse proxy

February 4, 2006

I’ve been trying to ProxyPass from a primary server to a backend (but not firewalled) machine running MediaWiki 1.5.2 with very little luck. I finally come across the solution. backend.machine.edu is the machine hosting MediaWiki. frontend.machine.edu is the machine acting as a reverse proxy. 1. Proxy machine, httpd.conf ProxyPass /wiki http://backend.machine.edu/wiki 2. On backend.machine.edu edit [...]

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sudo timeout duration

January 18, 2006

I sudo many, many times a day. Just the act of typing “sudo” seems a suitable safeguard against using inappropriate privileges. I type it when I need it. However, the default 5 minute timeout of the sudo command becomes unbearable over the course of the day. To increase this timeout value, add a defaults line [...]

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Rsync’ing through an SSH tunnel

October 23, 2005

I’ve been experimenting various approaches to keep my remote/local sites in sync. CVS is too much of a pain with blog-driven sites that create static pages. Instead, I’m now using rsync. Since several sites reside behind firewalls, I needed to find a way to tunnel rsync traffic through an ssh hop. Sure enough, the rsync [...]

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