How To Identify Operating System Using TTL Value And Ping Command
Did you know that we can identify which operating system is running on a remote system by simply pinging it? Yes! In this brief guide, we will see how to …
Quick Tip: Turn off the login banner in Linux or Unix .hushlogin file
Did you know? You can turn off the banner in Linux or Unix using a particular file. When you log in using ssh or other methods, you will find tons …
cpufetch – awesome CPU architecture info tool for Linux and macOS
Typically we use the lscpu command or /proc/cpuinfo command on Linux to check CPU information. I recently found another simplistic yet fancier CPU architecture fetching tool inspired by neofetch, pfetch …
Adding spice to your sudo session with a lecture file on Linux or Unix
Despite some severe bugs in sudo, it remains the defacto tool to gain root shell or run command as another user on Linux, macOS, and Unix-like systems. The sudo command …
Critical bug in sudo puts Linux and Unix systems at risk
Any logged-in unprivileged user can abuse an old bug in sudo to gain root privileges. It was rated as an important security issue for Linux and Unix-like operating systems. The …
How to install Homebrew on macOS to use the brew package manager
Homebrew is an essential package manager for developers, sysadmins, and power users on macOS. Homebrew allows us to install the latest and updated version of popular applications, packages, and developer …
duf – Disk Usage/Free Utility for Linux, BSD, macOS & Windows
We use the df command to show how much disk space is free on mounted file systems in Linux, macOS, and Unix-like systems. We also have the du command to …
Significant vulnerabilities that crippled IT world this decade (2010-2020)
The last ten years in the computer and IT security world are crippled with so many vulnerabilities. We saw massive cloud computing adoption and end-users using mobile devices with high …
bpytop – Awesome Linux, macOS and FreeBSD resource monitor
The bashtop is an impressive Linux resource monitor that shows usage and stats for processor, memory, disks, and network. However, it suffers from bash itself, and cross-platform support is a …
GNU/Bash 5.1 released with the random ${SRANDOM} number engine
Current GNU/Bash maintainer Chet Ramey announced the latest major release, Bash 5.1, on December 7th, 2020. Bash is the default shell on many Linux distros and popular among developers, especially …