Debian Linux 7 Long Term Support reached end-of-life

Posted on in Categories Debian Linux, Linux News last updated June 5, 2018

The Debian Linux version 7 (codenamed “Wheezy”) support ended on 31st May 2018. It was initial release on May 4, 2013. Each LTS ( initial release on May 4, 2013) support lasts for five years. It means Debian project will not provide any security updates for Debian 7. As Debian Linux 7 Long Term support ends, hence you must upgrade your system to keep it secure. This page list all essentials steps to update your system from Debian 7 to Debian 8.

Debian Linux 9.4 released and here is how to upgrade it

Posted on in Categories Debian Linux, Linux News last updated March 10, 2018

The Debian GNU/Linux project has released an updated version of its stable Linux distribution Debian 9 (“stretch”). You must upgrade to get corrections for security problem as this version made a few adjustments for the severe issue found in Debian version 9.3. Debian is a Unix-like (Linux distro) operating system and a distribution of Free Software. It is mainly maintained and updated through the work of many users who volunteer their time and effort. The Debian Project was first announced in 1993 by Ian Murdock.

400K+ Exim MTA affected by overflow vulnerability on Linux/Unix

Posted on in Categories Linux News, Security last updated March 8, 2018

Exim is a free and open source message transfer agent (MTA) developed at the University of Cambridge. It is famous on Unix and Linux systems connected to the Internet. It is freely available under the terms of the GNU General Public Licence. There is a buffer overflow in base64d() of Exim MTA that allows an attacker to run code remotely. ALL versions of Exim MTA affected by overflow vulnerability i.e. CVE-2018-6789.
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Linux/Unix desktop fun: Simulates the display from “The Matrix”

Posted on in Categories Command Line Hacks, Howto last updated January 3, 2018

The Matrix is a science fiction action movie from 1999. It was written and directed by the Wachowski Brothers. The film has falling green characters on screen. The digital rain is representing the activity of the virtual reality in “The Matrix.” You can now have Matrix digital rain with CMatrix on a Linux or Unix terminal too.

Monitor Linux CPU temperature, frequency, power in a graphical way

Posted on in Categories Command Line Hacks, Howto, Python last updated December 9, 2017


S-tui is a free and open source terminal UI for monitoring your computer. s-tui allows to monitor CPU temperature, frequency, power and utilization in a graphical way from the terminal. It is written in Python and need root permission to use the s-tui. It is useful for:

  1. Watch your CPU temperature/utilization/frequency/power
  2. See performance dips caused by thermal throttling
  3. No need to use X-server. Perfect for headless usage including Raspberry PI

Let us see how to install and use s-tui on a Linux based system.

How to record statistics about a Linux machine’s uptime

Posted on in Categories Command Line Hacks, Hardware last updated November 15, 2017

Linux/Unix sysadmins have a weird obsession with server uptime. There is a xkcd comic devoted to this subject where a good sysadmin is an unstoppable force that it stands between the forces of darkness and your cat blog’s servers.
Fig.01: Devotion to Duty https://xkcd.com/705/
One can tell how long the Linux system has been running using the uptime command or w command or top command. I can get a report of the historical and statistical running time of the system, keeping it between restarts using tuptime tool. Like uptime command but with the more impressive output. Recently I discovered another tool called uptimed that records statistics about a machine’s uptime. Let us see how to get uptime record statistics using uptimed and uprecords on Linux operating system.