A firewall is a system that provides network security by filtering incoming and outgoing network traffic based on a set of user-defined rules.
Open Source SysAdmin Resources
Open Source SysAdmin Resources are invaluable assets for modern IT professionals tasked with managing and maintaining complex systems. In the ever-evolving landscape of technology, open source solutions provide a vast array of…
Enhancing Security through Auditd
If you are running a mission critical web server, or maintaining a storage server loaded with sensitive data, you probably want to closely monitor file access activities within the server. For example, you want to track any unauthorized change in system configuration files such as /etc/passwd.
Harden Ubuntu Server Security
This guide is intended as a relatively easy guide to harden the security on an Ubuntu Server. Although it is not recommended to follow everything in this article, as it is always…
How to become a Linux Guru
The English Oxford Dictionary describes a guru as somebody who is an influential teacher or popular expert.
How though do you become an expert in the field of Linux? This guide highlights the steps you should follow in your quest to become an authority on Linux.
Redefining Development with SemiCode OS
Many of these tools are ready to serve, via a quick install from either your package manager or by downloading them, individually, from their respected websites. But what if you wanted all of those tools, at the ready, on a single, programmer-friendly platform? If the thought of having every tool you need to develop, pre-installed on a Linux distribution, appeals to you, there’s a new platform in the works that might fit your needs to perfection.
10 Useful Sudoers Configurations for Setting ‘sudo’ in Linux
A system administrator who assumes the role of the root user can permit other normal system users with the help of sudo command and a few configurations to run some commands as well as carry out a number of vital system operations including the ones mentioned above.
Alternatively, the system administrator can share the root user password (which is not a recommended method) so that normal system users have access to the root user account via su command.