I’ve been upgrading my Debian 12 (bookworm) server fleet to Debian 13 (trixie).
Here is the successful process I ended up following for them all.
The[……]
Category: How To
Tutorials and guides on how to install software, tweak and personalize your system…
Testing Paperclip: What I Learned
Paperclip recently caught my attention as it allows you to orchestrate teams of specialised AI agents through a beautiful self-hosted web UI, so I had[……]
AWS dynamic IP ranges
Need to know the dynamic IP ranges used by AWS in a specific region? AWS publishes this as a JSON file.
curl -s https://ip-ranges.amazonaws.com/ip-ra[......]
How to soft reset Linux disks
Sometimes disks stop responding and cause system slowness because the kernel is waiting for a response that never comes. The disk appears 100% utilise[……]
Find sdx device/ATAx mappings
When dealing with hardware, you often see log messages like:
ata9: hard resetting link
ata9: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
To map[……]
sed – match and replace BIND/DNS serial number programmatically
I had to make modifications to several BIND zone files. Sed proved itself invaluable once again.
The zone files looked like this:
domain.com. IN SOA[......]
Remove all non-ascii characters with perl
Sometimes when creating one-liners, the source contains non-ASCII characters that make parsing harder. To strip them all out, use Perl:
cat dirty-sou[......]
Converting spreadsheets to text files with ssconvert
ssconvert is a utility shipped with Gnumeric, a command-line spreadsheet converter. It is useful when you have data in a spreadsheet and want to parse[……]
How to update all docker base images with one command
To pull the latest version of all your Docker images at once:
for docker in $(docker images | awk '{print $1,$2}' | sed 's/ /:/g' | grep -v REPOSITOR[......]
How to update all pip python packages with one command
To update all your pip-installed Python packages at once:
sudo pip install -U `pip list -o | cut -d ' ' -f1 | tr '\n' ' '`
This lists outdated packa[……]