Howto Enthusiast Blog Post Category Archives

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

last updated June 5, 2018 in Debian Linux, Linux News

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.

OpenBSD 6.3 released ( Download of the day )

last updated April 2, 2018 in Datacenter, Hardware, Howto, Networking, Open Source

OpenBSD version 6.3 has been released. OpenBSD is demonstrating to be an excellent server operating system. Security is more critical now than ever before. OpenBSD leads the pack when it comes to security features. OpenBSD provides a very robust and trustworthy system that comes with the cutting-edge security feature. OpenBSD 6.3 continues to offer the “multi-platform, ultra-secure operating system” experience. The OpenBSD team releases a new version every six months.
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Debian Linux 9.4 released and here is how to upgrade it

last updated March 10, 2018 in Debian Linux, Linux News

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.

Linux/Unix desktop fun: Simulates the display from “The Matrix”

last updated January 3, 2018 in Command Line Hacks, Howto

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.

Deleting all existing comment author urls in WordPress using mysql command

last updated December 23, 2017 in Command Line Hacks, Howto, Programming, Web Developer

I have like over 50k+ comments posted on this site. A commenter is allowed to leave their website or Github/Twitter URL in the comment section. Unfortunately, many websites are dead creating a mess. Many are just spam and nothing else. This is not good for anyone. Here is a quick way to delete all existing comment author URLs in WordPress using mysql command line option.

How to customize title in WordPress themes using pre_get_document_title

last updated December 13, 2017 in Howto, Open Source, Programming

WordPress version 4.4 and above use a filter called pre_get_document_title() for a customzing title for each page, post, tag, category and more. For example, I can change 404 error title using this filter. One can use the wp_title() which was formerly deprecated in version 4.4 but was returned for compatibility reasons.

Update your OpenSSL on FreeBSD 10.x/11.x to fix vulnerabilities

last updated December 9, 2017 in Howto, Open Source, Security

FreeBSD includes software from the OpenSSL Project for the Transport Layer Security (TLS) and Secure Sockets Layer (SSL) protocols. OpenSSL has multiple vulnerabilities on a FreeBSD. Currently, no workaround is available. You need to update OpenSSL on FreeBSD version 10.x and 11.x.

Updated version of Debian Linux 8/9 has been released

last updated December 9, 2017 in Debian Linux, Linux News

The Debian project has announced an updated version of Debian 9 (codename “stretch”) and Debian 8 (codename “jessie”). One can get new updates merely running the apt command/apt-get command.

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

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

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:

Watch your CPU temperature/utilization/frequency/power
See performance dips caused by thermal throttling
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.

gtop: Awesome system monitoring dashboard for Linux/macOS Unix terminal

last updated December 6, 2017 in Command Line Hacks, Debian Linux, Howto

I like htop interactive process viewer. Recently I found another one called gtop. It is similar to top, but fancier. Let us see how to install and use gtop on a Linux or macOS Unix based system.

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