Linux Tips, Hacks, Tutorials, And Ideas In Blog
Linux Tips, Hacks, Tutorials, And Ideas In Blog
Fedora Linux version 26.0 has been released ( jump to download ) after many months of constant development and available for download in various media format. Fedora 26 is a free and open source operating system includes various new features such as GCC 7, Golang 1.8, Python 3.6, DNF 2.0, OpenSSL 1.1.0 and more. Fedora 26 runs on both ARM servers and desktop boards too.
There is a serious vulnerability in sudo command that grants root access to anyone with a shell account. It works on SELinux enabled systems such as CentOS/RHEL and others too. A local user with privileges to execute commands via sudo could use this flaw to escalate their privileges to root. Patch your system as soon as possible.
From my mailbag:
Dear nixCraft,
I run a Debian Linux 8.x on my Desktop and Ubuntu Linux 16.04 LTS on my Linode cloud server for my personal website. I am concerned that my Linux is affected by the recent Wannacrypt malware. I am reading about a ransomware attack, what do I need to do? Should I be worried?
–Concerned Linux User
Recently I come across a nice little nifty tool called pssh to run a single command on multiple Linux / UNIX / BSD servers. You can easily increase your productivy with this SSH tool.
pssh is a command line tool for executing ssh in parallel on some hosts. It provides specialties includes:
Let us see how to install and use pssh on Linux and Unix-like system.
Raptor Engineering is working and crowdfunding a high-end power8 based desktop computer with zero proprietary firmware blobs in the Talos Secure Workstation. Traditionally IBM, Oracle(Sun), Intel/AMD and others ruled this market segment. But now there is competition to Intel for a desktop computer.
Two factor authentication is increasingly becoming a strongly recommended way of protecting user accounts in web applications from attackers by requiring a second method of authentication in addition to the standard username and password pair.
Although two factor authentication can encompass a wide range of techniques like biometrics or smart cards, the most commonly deployed technique in web applications is the one time password. If you have used applications like Gmail, you are probably familiar with the one time password generated by the Google Authenticator app that’s available on iOS or Android devices.
The algorithm used for the one time password in the Google Authenticator app is known as the Time-based One-Time Password (TOTP) algorithm. The TOTP algorithm is a standard algorithm approved by the IETF in (RFC 6238) totp-rfc.
Fedora Linux version 20 (code name “Heisenbug”) has been released and available for download. Fedora Linux is a community-based Linux distribution which is sponsored by Red Hat, Inc. The code name “Heisenbug” is a term for a software bug that seems to disappear or alter its behaviour when one attempts to study it. Fedora is considered as the popular cutting edge distro, behind Ubuntu and Mint Linux for desktop and laptop usage.
Fedora Linux version 18 has been released and available for download. Fedora Linux is a community based Linux distribution. Fedora Linux is considered as the third most popular Linux distribution, behind Ubuntu and Mint for desktop usage. The new version comes with several new features such as – an installer that is rewritten and redesigned from the ground up, GNOME v3.6, KDE v4.9, Xfce v4.10, better network security with firewalld, Linux kernel v3.6, Python v3.3, Ruby on Rails v3.0, and much more.