Raspberry Pi on DietPiWhile doing a routine update (albeit a little delayed…) on my Raspberry Pi quorum device I hit a warning I …

New hardware My lab before 2024 refreshment consisted of three nodes: AMD Ryzen 9 3900XT 12-Core @ 3.8GHz, 128 GB RAM i7-7700 4-Core @ …

There is a lot of good descriptions how to set it up, however – as Pi-diet does not use classic sshd but `dropbear` `pvecm qdevice setup` …

A toolset to gather temperature and power consumption metrics then collect in Prometheus. Can be found on GitHub …

Custom Cloud-Init configuration As stated in Proxmox Doc, you can create a custom Cloud-Init config where you’re free to set all parameters …

A “raw” hex string can be converted into Wireshark pcap: query="<hex string here>" export …

Handy command to remotely capture tcpdump from a K8s container located in Google Kubernetes Engine and then display it (live!) in Wireshark …

How to fix Permission “artifactregistry.repositories.downloadArtifacts” denied on resource on Ubuntu when pulling from Google Artifact …

That’s surprising that for all these years I didn’t know about Wireshark MATE: MATE: Meta Analysis and Tracing Engine What is MATE? Well, …

Somehow I couldn’t find a complete guide how to install R and configure it properly in Golden Cheetah (I’m using v3.5). There is a good …

This is an example of a LUA plugin for Wireshark which goes through the packets and generates a statistic. In my case, I was looking for …

When installing an Oracle application using OUI (Oracle Universal Installer) sometimes it verifies if a given host is reachable. …

After Ubuntu upgrade 18.04 -> 18.10, Prometheus Node Exporter started to complain: root@grafana:~# /etc/init.d/prometheus-node-exporter …

States of Oracle Coherence federation are not very well described in the documentation. So I thought it would be good to ask at the source. …

Since a few weeks, my Proxmox lab has started having issues with on-board network. The adapter enters in “hang” state, the logs are full of …

MacOS tends to trash mounted disks with number of useless hidden files (e.g. ._* or .DS_Store ). There were number of recipes in the …

Edit 12/09/2018 As Ivan commented below: with binutils release 27.28 it seems to be solved. But see the workaround below in case it’s not… …

Due to issues with my current hosting, I decided to move the site to a new server. This might be a temporary location but will decide after …

After one of JVM updates, my Belkin KVM (Remote IP Manager) has started refusing to start with “Falied to validate certificate” error …

Typical and most robust way of configuring connectivity over SCTP (e.g. Diameter or Camel links) is to use two independent IP links (VLANs), …

$ cd /opt/ece/data/nosql/storage2/kvroot/ECEStore/log $ (for i in $(ls rg*-rn*_0.log); do tail -200 $i | grep "Originally thrown by HA …

Introduction Recently at work I had to encode an INAP (more precisely, SINAP) message “by hand”. That’s doable once, but when you need to …

Introduction One day I decided it would be fun to play with a real SS7 stack. The only one I could find was OpenSS7.

Even though the serial port is considered a “dead” interface, people still need it from time to time. On a Mac it’s possible — just not …

I love Wireshark, but sometimes it doesn’t decode all the parameters I need. One example: Q.850 cause codes inside INAP/CAMEL Release Call …

After a fresh Solaris 11 install on a T4‑1 server, I noticed an unexpected network interface: usbecm2. root@slc:/# ifconfig -a lo0: …

If you see this error on Ubuntu: PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php5/20100525/snmp.so' - …

On a fresh Solaris 10 install, Wireshark (from sunfreeware.com) just wouldn’t start: root@am1slc01 # wireshark No fonts found; this …

Are you a coffee fan? Are you an engineer? Then you’ll appreciate this kind of coffee machine: Not sure about you, but I was impressed 🙂

The application context (AC) is the mechanism for identifying the protocol and the protocol version of an application part (AP). The object …

Another student project — this time a description of Alcatel PBX services (Update 2023: the page seems to be offline). Originally hosted on …

During my time at TP S.A. I worked in the Network Division, in a team focused on ISDN services. One of the projects I helped build was a …

Near the end of my studies I ran into videoconferencing systems. It inspired my thesis topic — IP telephony — and I dug into the H.323 and …

Check interactive WWW Point Code Converter Quick summary This is a small calculator for converting SS7 point codes between different …