Monthly Archives: March 2010

Flashback: Remote kernel logging with netconsole for fun and profit

Have you ever had a machine that was a bit flaky? You know those ones that occa­sion­ally crash and don’t write any­thing use­ful into the log file. Some­times you can cap­ture those mes­sages with net­con­sole. Just revis­it­ing a small walk-through I wrote a while back. Remote ker­nel log­ging with net­con­sole for fun and profit

Installing NRPE on XenServer

I like to have as lit­tle run in dom0 as pos­si­ble. How­ever some things you really need checked from dom0, like the sta­tus of your raid per­haps. Just some quick instruc­tions on get­ting Nagios NRPE run­ning in XenServer. Install EPEL repos­i­tory and dis­able it by default (remem­ber we don’t want to acci­den­tally install unnec­es­sary pack­ages)

Flashback: Vim customization for python

Python has become my lan­guage of choice for automa­tion and gen­eral script­ing. Its nice to have an edi­tor that makes things eas­ier when your doing things. Its also nice to use an edi­tor that you can find just about any­where. I have cus­tomized my vim to make doing things in python much quicker and this

Flashback: Backdoor Corporate Sabotage With DNS

This is just an old entry that I thought was inter­est­ing, and it appears its still rel­e­vant. Like a bro­ken record, “eco­nomic times are rough”, what bet­ter way to boost your rev­enue than to exploit your cus­tomers. What bet­ter way to sup­press a com­peti­tor than to increase a com­peti­tors infra­struc­ture costs (with lit­tle vis­i­bil­ity to

Flashback: Automatic session logging and monitoring with GNU screen for the paranoid

Another day, another flash­back. I don’t know about you but at times I have had some very odd and uncom­fort­able requests from ven­dors. It’s not wholly  uncom­mon for them to want to log into your sys­tem to diag­nose an issue for them­selves. Or per­haps for what­ever rea­son your man­ager says hey give this ran­dom out­side