Linux Commands frequently used by Linux Sysadmins – Part 1

What are some of the Linux commands used by Sysadmins and power users daily? In this article, I’ve listed 10 such commands frequently used. Suggestions, and feedback welcome. Also, see Part 2, Part 3, Part 4, and Part 5. Some people consider Linux to be a complicated operating system, geared toward expert users only. However, as […]

atop – For Linux server performance analysis

We’re all familiar with top, a real-time system monitor. Some prefer htop and previously I mentioned iotop for use with storage read/write monitoring. Lets looks at another popular tool for Linux server performance analysis: atop.   Advantages of atop Atop is an ASCII full-screen performance monitor which can log and report the activity of all server processes. One feature […]

How to direct-install Debian SID rolling release using mini.iso (w/ screenshots)

This post has been updated. Original post: May 20th, 2017. Last updated Feb, 28th 2020. For desktop, I’ve often preferred rolling release distros such as Arch Linux or custom installed Kali Linux. However, currently I’m on Ubuntu 14.04 LTS Fedora 31. Ubuntu recently released 16.04 LTS 18.04 LTS which meant performing an in-place upgrade or complete re-install […]

How to Enable Unattended Upgrades on Ubuntu/Debian

Linux server security is of critical importance to sysadmins. One central part of keeping Linux servers secure, is by installing security updates in a timely manner. Too often there are compromised servers on the internet due to pending security updates waiting for a manual update. On both Ubuntu and Debian, the unattended-upgrades package can be configured […]

Replacing getty with ngetty on Debian

This article was originally posted back in October 2013. As such, I’ve updated it, since the current Debian release, Debian 9, no longer uses init, but instead uses systemd. Systemd is a system and service manager for Linux. It is the default init system for Debian since Debian 8 (Jessie).  ngetty or mingetty may be useful for […]

Temporary change #ArchLinux to #Debian

Update Jan 15th 2015: I’m back on Arch Linux. Debian was great, but Arch is better, for now. Between the front page news, Arch Wiki and the official forum, nothing is impossible to solve or find an existing solution to. I use Terminator (terminal windows can be split as many times as needed) for ssh access to servers […]