When setting up https for Grafana we need separate files to set the security. One with the certificate chain in PEM format and another with the private key. Step 1: Convert the JKS keystore to the PKCS12 format. After that it will be easier to extract the certificate chain and the private key. Step 2:… Read More »
In the world of network administration and troubleshooting, there are countless moments when you need to verify connectivity. Is a specific client successfully reaching a server on a designated port? Is the server responding? Or is something silently dropping the packets? For these scenarios, the command-line tool tcpdump is an invaluable asset – powerful, versatile,… Read More »
I own my family name as an internet domain with several country codes. It’s not every day you get to claim your heritage in the digital world like that. However, this seemingly harmless act has turned me into an unexpected recipient of a rather peculiar type of email: the multilingual ransomware scam. My inbox, normally… Read More »
Some websites require to obtain the time-zone from the client browser in order to correctly display some information. This is not always critical but in case you are using some web hosted e-mail or calendar account this is important. One day I noticed that suddenly all my tutanota.com mail calendar events were completely off by… Read More »
Yes, folks, more and more technology is cripping everywhere in our lives. With this , we can also see more tech failures in our day to day life. Here I give you the bottle return machine from Mega Image stuck in a reboot loop 🙂 Looks like it is running a Tomra Linux.
This is a continuation of the previous post about one liners from https://blog.voina.be/fedora-linux-server-useful-one-liners/ Updating to a new version – extra commands In case the usual one liner does not work or there are some issues related to the upgrade, there are some additional things that can be done. Make sure to have latest packages of… Read More »
While running the blog server on Fedora Linux I found out that some one liners are either very important to be executed once or very useful periodically. Here are some of my most used one-liners Updating packages Note that I allow dnf to skip broken packages and delete if necessary. Sometimes if using other than… Read More »
Apache ActiveMQ® is the most popular open source, multi-protocol, Java-based message broker. It is widely used in a lot of multi service application environments where we need to pass messages between services. All this type of environments (kubernets, docker swarm etc. ) are used to be able to monitor and control the component services using… Read More »
A common mistake is to set the alternatives just for java sdk. This can lead to issues when several java versions are present. Jasper Reports a well knows Java library used to generate ad-hoc pdf reports compiles the report templates and the temporary classes using the default system javac not the javac of the java… Read More »
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)