Everyday Notes from a Unix Administrator. A website created to serve as online notes, documentation, tips and tricks for System administrators.
Test internet speed from the Command-line
You probably have heard and tried using speedtest.net to test you computer or smartphone internet speed. If you have yourRead more.
How to find out PID in Linux
Every Linux process has a process ID (PID) assigned to it. It is a unique identification number that is automatically assignedRead more.
APT Listing Packages – Ubuntu / Debian
Do you ever wonder how many thousands of packages are installed on your Linux system? Even a fairly modest Linux system isRead more.
Software RAID Recovery Tutorial
This tutorial will walk through the troubleshooting and recovery of a failed disk on a Software RAID setup. Especially mirroringRead more.
Redirect HTTP to HTTPS on Apache
SSL secured websites or HTTPS has now become a must to have on website, especially those handling sensitive client information.Read more.
Properly rename user accounts in Linux
We might have come across a situation where we might want to rename user in Linux system, for whatever reasons.Read more.
USB Ports and Versions Explained
Universal Serial Bus, more commonly known as the USB has been around for quite some time now with almost everyRead more.
Setup Master Slave replication in MariaDB
Databases are arguably one of the main component of any modern application. And one of the most popular implementation ofRead more.
How to remove unused kernel images from CentOS/RHEL systems
Every time you update your CentOS Linux and the update includes a new kernel image update the system will notRead more.
Recover disk usage after deleting large file in Linux
Disks getting full on Linux is a common scenario any administrator have probably experienced. There are usually some large filesRead more.