Some time ago, I was asked to disable updates for the fail2ban application on the server I manage. So when we run yum update , the fail2ban application will not be updated even though the application actually has an update. The method is very easy, here’s How to disable application Read more…
Have you ever had an accidental deletion of important files on Linux? It must be annoying isn’t it? No need to worry, you can restore the file using Testdisk. Immediately, I will do a simulation on how to recover deleted files on linux with Testdisk : 1. Check the file Read more…
MySQL is one of the open-source RDBMS (Relational DataBase Management System) software which is included in the top 3 most popular and most widely used worldwide. Currently, the most recent version of MySQL is MySQL 8, with a minor version 8.0.18 as of this writing. I will share information about Read more…
server monitoring is now a mandatory that must be done for every individual / group / company that owns a server, whether on-premise or on-cloud. Especially if the servers that are owned are many. We need a tool or application that can help monitor it all. Therefore, Grafana is here Read more…
In the previous article I discussed how to install Prometheus on Linux. This time, as promised, I will share information about how to install node_exporter on linux. Before we starting, need to know, node_exporter is an OS / Server exporter of Prometheus. Where node_exporter itself acts as a metrics collector Read more…
Quoted from Wikipedia – “Prometheus is a free software application used for event monitoring and alerting. It records real-time metrics in a time series database (allowing for high dimensionality) built using a HTTP pull model, with flexible queries and real-time alerting. The project is written in Go and licensed under Read more…
For a system administrator like me or DevOps and also a Cloud Engineer, where almost every job deals with the CLI (command line interface). Often we install and uninstall an application. To the extent that we don’t even memorize what applications are already installed on our server. For that I Read more…