Everyday Notes from a Unix Administrator. A website created to serve as online notes, documentation, tips and tricks for System administrators.


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Recent Posts

17 Things about Security
A list for protecting yourself and others from the most common and easiest-to-pull-off security crimes. This article does not attempt
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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 your
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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 assigned
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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 is
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Software RAID Recovery Tutorial
This tutorial will walk through the troubleshooting and recovery of a failed disk on a Software RAID setup. Especially mirroring
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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.
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USB Ports and Versions Explained
Universal Serial Bus, more commonly known as the USB has been around for quite some time now with almost every
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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 of
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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 not
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