The magic command is upower, a command that gives you detailed information about the power devices in your laptop/desktop. Enumerate all the power devices Check the details of a power device (battery in this case)
RabbitMQ is a nice message queue server used in lot of networking monitoring appliances and other services. It has a very small footprint and can be integrated with lots of languages and resources. All works well until you get the famous recovery log corrupted error. Usually the issue is caused by disk full or in… Read More: #RabbitMQ crashing at restart with “badmatch, error, not_a_dets_file” »
We all hate that time when we start to have a disk failure. In one of my RAID10 one disk was at some point in the failed status. That should be an immediate concern for you. A 4 disks RAID10 setup can deal with 1 disk failure and even with 2 disk failures if they… Read More: How to fix a failing disk in #Linux using #smartctl… »
JBoss applications server is a very nice and powerful Java application server from RedHat. To make it really useful in a modern architecture of a complex software product we must prepare JBoss to be very easily deployed in a cluster environment. The simplest way to do it is to write some basic Bash scripts that… Read More: How to make #JBoss 7.4+ a cluster ready service using… »
ActiveMQ is a very nice and powerful open source, multi-protocol, Java-based message broker. It is a very popular software used to bridge between loose components of an environment that consists of several services. To make it really useful in a modern architecture of a complex software product we must prepare ActiveMQ to be very easily… Read More: How to make #ActiveMq a cluster ready service using #bash… »
We all know back-up is important and a must have in case of critical systems. Making a backup on tape is one of the best industry standards that is still unmatched. In the following I am presenting a simple way to make tape back-ups using tar and LTFS on LTO5 and up tapes. Why LTFS… Read More: Simple #backup using #cron #tar and #LTFS on a #LTO… »
I am self hosting my own services on my home server and sometimes issues occur due to incompatible prerequisites and because I try to always use the latest version of everything. After updating from Fedora 34 to Fedora 35 again I hit one issue I already had: PHP prerequisites. The issue after update was caused… Read More: How to run with multiple PHP versions on Fedora 35… »
There is a neat way using a bash one liner to change attributes of all the files from a path and sub paths that match a criteria. As an example following line makes all the script files from a path and sub paths executable.
One of the most annoying issues you can have in your network setup is when a router dies. I am a fan of Ubiquity EdgeRouters but they suffer from one annoying issue. Sometimes due to power issues the USB stick that acts as a storage media gets corrupted or dies. In the following I will… Read More: Recover a dead #Ubiquity #EdgeRouter »
After some updates suddenly all the post I shared from Jetpack for WordPress had no valid Twitter card. After some mail exchanges with Jetpack support they assured me that all is good from their part. As instructed by them I was able to see that indeed Jetpack was correctly generating the Twitter Card. Still checking… Read More: #Twitter Card: ERROR: Fetching the page failed because other errors »