welcome to the world of…

Looks like a small bulb used to indicate something unusual, like a malfunction.

Postfix and DDoS

Filed under: Uncategorized — Tags: , , , — admin @ 2009-01-27 23:04

Last twelve days my SMTP servers were under a continual DDoS. Attack consisted of ~1300000 attempts to deliver a message to random mailboxes under a single domain. Attacks came from ~280000 unique IP addresses. (more…)

mod_python vs. FastCGI

Filed under: Uncategorized — Tags: , , — admin @ 2009-01-24 12:19

I’m developing webapplications running under mod_python for a long time. I’m not very satisfied with the mod_python performance particularly the first load time so I’m looking for something like an application server – loaded modules will stay “longer” in the memory – application doesn’t need to be completely initialized very often. The FastCGI approach is very close. I ran benchmarks to measure overhead of the FastCGI (mod_fastcgi, mod_fcgid) compared to the mod_python. (more…)

Compression programs comparison

Filed under: Uncategorized — Tags: , — admin @ 10:43

I was wondering how powerful are those simple stream compressors like gzip and bzip2. Test rabbit was a Linux kernel source tree tar-ed into one file which was thrown out to those compression beasts. Simple benchmarks were performed on Mobile AMD Sempron 3100+. (more…)