Learn how to restrict the use of the su command to only authorized users. This will help to protect your system from unauthorized access.
sk

sk
Senthilkumar Palani (aka SK) is the Founder and Editor in chief of OSTechNix. He is a Linux/Unix enthusiast and FOSS supporter. He lives in Tamilnadu, India.
- Linux SecurityLinuxLinux AdministrationLinux BasicsLinux CommandsLinux Group ManagementLinux User ManagementUnix/Linux Beginners
How To Allow Or Deny Sudo Access To A Group In Linux
By skThis step-by-step tutorial explains how to allow or deny sudo access to a group in Linux for improved Linux security and efficient group management.
- Linux SecurityCybersecurityFirewallLinuxLinux AdministrationOpensourcePythonSecurityUnix/Linux Beginners
Taking Linux Security To The Next Level With OpenSnitch Firewall
By skEnhance Linux security with OpenSnitch, the powerful application-level firewall that effectively controls your outbound connections.
- Bash TipsBASHLinuxLinux AdministrationLinux BasicsLinux CommandsLinux Tips & TricksUnixUnix/Linux Beginners
Master The Command Line With Useful Bash Aliases In Linux And Unix
By skBoost your command line productivity with these useful Bash aliases in Linux. Level up your command line skills with handy Bash aliases!
- Linux CommandsLinuxLinux AdministrationLinux BasicsOpensourceRustRustUnixUnix/Linux Beginners
Fd: The Find Command Alternative For Mastering File Search In Linux
By skMastering file search in Linux with fd, a user-friendly alternative to the find command. Learn fd command examples for efficient file searching.
- Monitoring ToolsLinuxLinux AdministrationLinux NetworkingLinux SecurityOpensourceRust
How To Effortlessly Monitor Your Internet Traffic Using Sniffnet Network Monitoring Tool In Linux And Unix
By skEffortlessly analyze, track and monitor your Internet traffic in real-time with Sniffnet network monitoring tool in Linux, and Unix.
- UbuntuLinuxLinux AdministrationLinux CommandsLinux Tips & TricksShell ScriptsUnix/Linux Beginners
How To Migrate From Snap Packages To Flatpak Using Unsnap In Ubuntu
By skMigrate from Snap packages to Flatpak with Unsnap in Ubuntu and its derivatives. Created by ex-Snap developer Alan Pope, Unsnap makes the migration process quite simple!
- DebianLinuxLinux AdministrationLinux BasicsLinux CommandsLinux DistributionsLinux User ManagementUnix/Linux Beginners
How To Add, Delete, And Grant Sudo Privileges To Users In Debian 12
By skDiscover how to add, delete, and grant sudo privileges to users in Debian Linux for enhanced security and access control.
- Linux KernelLinuxLinux AdministrationLinux BasicsLinux CommandsLinux Tips & TricksUnix/Linux Beginners
How To List Or Check All Installed Linux Kernels From Commandline
By skThis brief tutorial will teach you how to view or check all installed Linux Kernels along with their versions from commandline in Linux.
- Linux KernelAlmalinuxDebianLinuxLinux AdministrationLinux CommandsLinux MintLinux Tips & TricksRed Hat Enterprise LinuxRocky LinuxUbuntu
How To Remove Old Unused Linux Kernels
By skSafely declutter your system by removing unused Linux kernels. Our guide walks you through the process for Debian and RHEL-based systems.