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Sysadmin and kernel/driver topics, especially on PCI driver debug and distro, mail and webserver admin

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Recent pages

- Remount a readonly disk readwrite - Just a reminder
Page published on Dec. 9 2009
In Nov. 2009 | Week of 12/07/09
- My Choice: Best IPTables Tutorial - This link is hands down the best tutorial of IpTables I've come across.
Page published on Feb. 10 2009, 2 links
In Jan. 2009 | Week of 02/09/09

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What is new?

- How To Build a Vhosted Linux Development Server on Windows using VirtualBox - I've been doing a fair bit of PHP and Python on Linux recently. My favorite PHP editor, PhpEd is Windows only. However, I prefer to develop LAMP code on LAMP. Here's a solution: Linux on VirtualBox, networked to the host Windows OS.
Commented on Jan. 20, 1 link, 5 comments
In Sysadmin | Jul. 2009 | Week of 08/03/09
Better Broadband Bandwidth Utilization Using Wondershaper on a Linux Router to Limit the Uplink - Since I did some streaming video experiments in the early years of this century I've known that maxing both directions of an internet connection kills throughput. I did some experiments, initially to improve my SIP Phone performance (when my son is playing online games, TBH) and came up with a "low-hanging fruit" solution.
Icon set on Aug. 6 2009, 6 links
In Sysadmin | Jul. 2009 | Week of 08/03/09
- Convert a .crt Certificate to a .pem file - Every year or so I update CA'd certs and usually forget that my mailserver (cyrus+postfix) needs a PEM format file. Then, I have to fish around for the openssl commands that do the job.
Page published on Apr. 22 2009, 1 link
In Sysadmin | Mar. 2009 | Week of 04/20/09
- VirtualBox for Ubuntu on Vista 64 (The VMWare Killer for Developer VMs?) - Ok, that's an overstatement. I used VMWare Workstation successfully for a year to develop for Win2k web servers on my XP desktop. However, when I needed an Ubuntu guest on Windows Vista host (for Python/TurboGears dev), VMWare got ugly with various host apps. I searched...and I found...VirtualBox.

This doc is a loose how-to, because some steps were poorly documented.
Page published on Feb. 13 2009, 2 links
In Sysadmin | Jan. 2009 | Week of 02/09/09
- The Internet Server Project - Part IV - DNS, WWW, Mail & Other Projects Page edited on Feb. 8 2008, 4 links
In Sysadmin | Jan. 2008 | Week of 02/04/08
- The Internet Server Project - Part III - Do It and Test It Page edited on Feb. 8 2008, 4 links
In Sysadmin | Jan. 2008 | Week of 02/04/08
- The Internet Server Project - Part II - Planning - Let's break down the top level parts for the project...
Page edited on Feb. 8 2008, 7 links
In Sysadmin | Jan. 2008 | Week of 02/04/08
- The Internet Server Project - Part I - Intro - Back in '99 I was determined to get out of semiconductor CAD software and into this wizzy Internet stuff. Probably the smartest thing I did back then was to build (and rebuild and rebuild) a web+email server for my own domain.
Page edited on Feb. 8 2008, 3 links
In Sysadmin | Jan. 2008 | Week of 02/04/08
- Linux IRQ problems: mpparse.c - I've debugged several linux IRQ problems. More than one has boiled down to erroneous information coming from the motherboard info on PCI/IRQ mapping fed to kernel in mpparse.c.
Page edited on Sep. 3 2007, 1 file
In Kernel & Drivers | Dec. 2005 | Sep. 2006 | Week of 01/30/06
- Postfix + Cyrus Imap - A Quick & Easy Setup for Suse 10.1 and The *non-MySQL* Case - In the past (Suse < 9) I've always had to build postfix and cyrus from scratch to get them to work together (could be my problem, I admit). In Suse 10.1 I've finally gotten them to work from the distro, with a few bits of config hacking, for local passwd users (no mysql based accounts in this config.)
Page published on Sep. 2 2007
In Sysadmin | May 2006 | Week of 06/12/06
- BitDefender install script hangs on ftp call - When running the BitDefender install script, wget tries passive ftp and hangs. Here is a way to force wget to not use ftp passive.
Page published on Sep. 2 2007, 1 link
In Sysadmin | Jan. 2006 | Week of 02/06/06
- Suse 10.0 Internet Install - DISCLAIMER DISCLAIMER: Ok, this seems to be the way to go. I don't know how far back this was supported, but if installing 10.x, try it out.

DISCLAIMER: This note needs a rewrite because there's an easier way. I'm hoping this still works under 10.1, too, as I haven't checked it. You may want to check http://opensuse.us/viewtopic.php?t=149 for a 10.1 specific how-to.
Page edited on Sep. 2 2007, 2 links
In Sysadmin | Nov. 2005 | Sep. 2007 | Week of 09/03/07
- How To change the mysql root password (or any mysql password) - Ever inherit a mysql server that no one knew the root password, or perhaps any of the passwords?
Page published on Sep. 2 2007
In Sysadmin | Dec. 2005 | Sep. 2007 | Week of 01/02/06
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