This category focuses on real world Linux server administration for developers, freelancers, and small teams who have to manage their own infrastructure. You will find tutorials for working on popular distributions like Amazon Linux 2023, Ubuntu, and Debian, along with practical shell tips that make everyday tasks faster. Articles cover user and group management, systemd services, log rotation, backups, SSH hardening, and the kind of command line workflows that keep servers clean and predictable.
I also dig into troubleshooting and performance tuning so you can confidently debug slow or misbehaving servers. Topics include reading system logs, inspecting running processes, understanding load averages and memory usage, and using tools like top, htop, journalctl, and strace when things get weird. Many guides are based on actual incidents from production environments, so you can learn from real issues instead of contrived examples.
As you move through the Linux category you will build a toolbox that applies anywhere, whether you are managing a single VPS, multiple EC2 instances behind a load balancer, or a home lab. The goal is to help you become comfortable on the command line, understand what your system is actually doing, and make changes in a safe, repeatable way.
In this post, I will show you how to bond two NIC interfaces together on Centos 7 using the bond 5 mode option while using a single static IP. I’m also assuming you have firewalld configured in this tutorial which is why I have included the zone definitions below. I have chosen the bond 5…
In this brief post, I will show you how to quickly check for kernel errors on Centos 7. Simply type the following command: If you have any logged errors you may receive an output similar to this one. To get a list of all errors you could do something like this: To get a more…
In this post I will show you how to easily disable SELinux without having to reboot your Centos environment. In other words, we will be changing the mode from enforcing to permissive. To check if SELinux is enabled and the configurations of SELinux you can simply type the following: You should see something like this:…
Sometimes you may need to extract or create an archive file on your Linux server. The very first step in the process would be to identify the exact archive type by looking at the file extension. The most common archive types are zip (ending with .zip), tar (.tar), Tar+Gunzip (.tar.gz), Bzip (.bz2) and Rar (.rar).…