Bash is an acronym of Bourne-Again Shell, which is the successor of Bourne Shell distributed with most of the Linux…
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What is /etc/aliases? /etc/aliases is a text file used to store email aliases on a Linux system. Email aliases are…
What is /etc/nsswitch.conf? /etc/nsswitch.conf is a Linux configuration file that specifies how the system should switch between different name service…
If you’re looking for a way to enhance the security and performance of your Debian server, setting up a Squid…
Certbot is a free and open-source software tool used for managing the Let’s Encrypt certificates. This tool allows users to…
Git is a free and open-source version control system that is widely used for software development and version control. It…
LibreOffice is a free and open-source office suite with a clean interface. It provides most of the tools required for…
The Problem: Today, I launched a new AWS instance with Ubuntu 22.04. The default key provided by AWS is working…
Apache ActiveMQ is a widely used open-source messaging and integration patterns server. It’s written in Java and supports JMS (Java…
SSH (Secure Shell) is a cryptographic protocol to provide secure data transmission over insecure networks. OpenSSH is the server that…