Soft lockup issues with Debian 5 (Lenny) on Xenserver/Xen
With SMP (multi-CPU) VM’s on Xen or XenServer running Debian Lenny you need to add the following kernel options if you’re getting soft lockups: clocksource=pit nohz=off
Categories Archives Technical
Adding a remote MySQL user
Adding a remote MySQL user
Ajax Password Generator
Ajax-based password generation written in PHP/Javascript. It saves password length option in cookies.
Install ffmpeg, flvtool2, mplayer, mencoder and ffmpeg-php in Cpanel, CentOS, RHEL
How to install ffmpeg, flvtool2, mplayer, mencoder and ffmpeg-php on a Cpanel / CentOS server.
Finding PHP shell scripts and PHP exploits
Recursively find many PHP shell scripts and PHP exploits with these simple one-liners.
Installing Ksplice – The Easy Way
When you’ve got dozens or more CentOS boxes to install Ksplice Uptrack on, this single cut-and-paste method lets you do it in one click. Remember to replace ACTUAL_KEY with your Ksplice access key.
Using TCPdump and Wireshark to monitor network traffic
Here are a few shortcuts for common monitoring tasks with TCPdump. I will update this post over time as new needs arise. Monitor traffic to/from a single port: tcpdump -n -i eth0 ‘port 53’ Monitor and decode traffic to/from or regarding a particular domain or IP (there may be a better way, this is quick […]
IIS6 Directory Listing Timeout with Windows Firewall
This issue comes up every so often. No matter what, even if you manually define all the passive ports in Windows firewall, add an exception for inetinfo.exe, the works, certain directory listings still hang on the client end. This issue is apparent only with the Firewall enabled — disabling the firewall allows the listings to […]
Creating Forensic Copies and Backups of Any Media
Make forensic-quality copies and backups of any type of media using free software.
Batch PHP Thumbnail Generator
Automatically create a batch of thumbnail images using PHP.