Category Archives: System Administration

Virtual Hosting TurboGears Applications on Mac OS X Leopard

Posted on January 16, 2008 by Dennis

For a couple years now, I’ve been learning and applying various tricks for developing and hosting multiple Python web sites on my development machines. During that time, I made a migration to Mac OS X. Most setup files for python … Continue reading →

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Linux-Vserver vs Xen

Posted on January 14, 2008 by Dennis

A while back, I found myself running out of hardware and wanting to host more sites than I currently was. In addition, I wanted to create a little bit more redundancy for some of the services I host. At the … Continue reading →

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Keeping a process running

Posted on January 4, 2008 by Dennis

Have you ever had a process that dies on occasion? For me, I hate that situation and prefer to fix the software as opposed to have a monitor that restarts the process when it dies. I’ve run into a case … Continue reading →

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How to virtual host load balanced websites with ldirectord and Apache

Posted on October 29, 2007 by Dennis

I posted a while back on getting Heartbeat set up to add reliability to websites. After a few weeks of experience with the system, I thought I’d add a few additional tips on making the setup more reliable. There are … Continue reading →

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Using piped svndumpfilter commands to separate an svn repository

Posted on October 15, 2007 by Dennis

According to the documentation for svndumpfilter, you can include one subcommand when filtering a dumped repository. Suppose you have a repository that has a path “/some/path” that you’d like to separate out into its own new repository. From the documentation, … Continue reading →

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Using tcpdump on a linux-vserver guest

Posted on October 11, 2007 by Dennis

To debug a problem I’m working on, I need to be able to see network traffic on an interface inside a linux-vserver guest. To do this, you have to enable the CAP_NET_RAW capability for that guest. > echo “NET_RAW” >> … Continue reading →

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