Over the past month I’ve been playing around with AI based development, in these efforts I’ve produced a tool called Lustre Sentinel. This is a simple Lustre file system monitoring and auditing application written in C. The general idea behind … Continue reading
Here’s a simple function to validate IPv6 address space within a bash script
Below is an example I vibe coded up with Grok which provides parallel execution of tasks within Bash 4.3+ and later. It leverages internal bash features as well as external temporary tracking files for output capture. It seems to work … Continue reading
How to disable snap and reinstall mozilla firefox non-snap packages on Ubuntu Linux 22.04 and later Continue reading
The less tool can open multiple files in order, I find this useful when comparing sets of logs. For instance Which will open the first file it finds and hold the rest in reserve, switching forward and backwards through this … Continue reading
Imagemagick can calculate the best resolution and quality for JPEG type files with the -define jpeg:extent=SIZE optional argument. An example of this would be to reduce the size of a multi-megapixel image by half and targeting a desired maximum file … Continue reading
So very recently my beloved 2013 era XPS 13 developer edition finally failed. The HID controller failed and that’s pretty much it for these things. As a result of this I ended up switching back to my spare laptop (well … Continue reading
Simple tip, to decode thread stack dumps from Lustre file system, which typically get dumped into /tmp, run: lctl df <input file> <output file> This will leave you with an ascii formatted, human readable stack trace which can be used … Continue reading
Below are some commands I’ve found useful when dealing with infiniband and related issues. Determine port state on all ports available within the fabric The command ibnetdiscover command will show you the state of each port in the the fabric. … Continue reading
I’ve been trying hard lately to take useful code I’ve written over the years for different projects (such as my predictive anti-spam system Ruckus scanmail) and rep.ublish the libraries with more generic names under CPAN Filesys::Virtual::Chroot provides advisory functions for … Continue reading