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.
Git is a version control system. Linus Torvalds created Git in 2005 for development of the Linux kernel. Git is mainly used for software source code management. However, it can be used to keep track of any set of files such as HTML or CSS or a tutorial written in the markup language. Git is a Distributed Version Control Systems. A dedicated Git server helps to manage access control, show contents of a Git repository via the web and manage multiple repositories. In a Git, clients do not just check out the latest snapshots of the files. They entirely mirror the repository including history.
Ubuntu Linux version 18.04 LTS (codenamed “Bionic Beaver”) has been released and available for download. Ubuntu Linux is a community-based Linux distribution, and you can download Ubuntu Linux 18.04 LTS version today. The latest release of Ubuntu brings the best open source technologies together on one platform, with the benefit of free updates for five years. This newest release of Ubuntu Server and desktop heavily focused on supporting cloud computing, IoT, AI, machine learning, 64-bit ARM-based server, and more.
Red Hat Enterprise Linux (RHEL) 7.5 released. This version includes updates and various improvements such as GNOME rebased to version 3.26, LibreOffice rebased to version 5.3, Support for libva (VA-API) added, GStreamer now supports mp3 and more. RHEL is one of the leading enterprise Linux distribution for both bare metal and cloud platform. It targeted toward the commercial users. RHEL works with x86-64, IBM System z, and other platforms.
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.
Continue reading “OpenBSD 6.3 released ( Download of the day )”
ed is a powerful line text editor for the Linux and Unix-like systems. It was one of the first standard Unix text editor developed in 1969 by Ken Thompson. Much older and legacy Unix like system only shipped with ed for the rescue purpose. There was no vi. So learning ed might be a good idea. A low-level understanding of ed editor helps when one uses a high-level application such as vi or vim. The “Ed Mastery” book teaches you how to use the ed and forgotten art of Unix where the line-oriented paradigm is the only option. The author describe book as, “If you don’t know ed, you’re not a real sysadmin. Forty years after ed’s introduction, author Michael W Lucas has finally unlocked the mysteries of ed for everyone. With Ed Mastery, you too can become a proper Unix sysadmin.”
One of the most common mistakes is typing sl instead of ls command. I set up an alias, i.e., alias sl=ls; but then you may miss out the steam train with a whistle.
sl is a joke software or classic UNIX game. It is a steam locomotive runs across your screen if you type “sl” (Steam Locomotive) instead of “ls” by mistake. Now there is a twist to older sl command.
Continue reading “Linux/Unix desktop fun: sl – a mirror version of ls”
A new version of the Raspberry PI 3 model B+ has released, and it is incredible update over the older model. Just over two years ago, I got Raspberry Pi 3 Model B. It was my first 64-bit ARM board. It came with 64-bit CPU. Here are the complete specs for updated 64-bit credit card size computer.
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 9.5. 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.
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.
Continue reading “400K+ Exim MTA affected by overflow vulnerability on Linux/Unix”