Archive for the 'technobabble' Category

Why does calendaring suck so much?

Saturday, November 22nd, 2008

Ok, so here’s the story.
At work, we’ve got exchange calendars. They do everything from meeting and room scheduling to events and outings and all that stuff, with meeting invites carrying along the necessary info to make stuff work in general. It’s pretty slick, but it only works with outlook and outlook web access. [...]

mpm-worker versus mpm-prefork, and mod_php versus fastcgi

Saturday, March 22nd, 2008

*Caution: nothing but geek-content here*
So Apache 2.2 has a couple of “stable” mpm’s, namely prefork and worker.
Prefork is the old tried-and-true method, where the server spawns $StartServers httpd processes, and on-demand starts additional up to $MaxClients. Each subprocess handles $MaxRequestsPerChild requests, then dies and is replaced as needed.
Worker, on the [...]

Fighting syn floods with iptables

Sunday, March 9th, 2008

The tracker I admin seems to be undergoing a bit of a syn flood, and the tcp_syncookies tools weren’t helping. My ip_conntrack table was filling at 65536 connections, and the tracker just wasn’t talking to anyone as a result. Lots of packets falling out, lots of full tables. Not sure if it’s [...]

Firefox X-forwarding weirdness…

Friday, December 28th, 2007

Ok, so check it out. This is like … the single strangest thing I’ve run into in the wide world of linux.
So, you start a local firefox session, then ssh to a machine with a -X (enabling x11 forwarding). Then on the remote machine, you run firefox. You get … another locally-running [...]

distro blues

Wednesday, November 28th, 2007

Ahh, the geekery. I wonder how many people this has happened to…
So basically, for the last couple years I lived almost exclusively in gentoo for all my linux needs. Sounds good, right? A single distro, albeit a source-based one. I got used to a lot of gentoo-isms. I had my [...]