Managing Exim Mail Server in Linux
Exim is a popular mail transfer agent (MTA) in Unix-like operating systems. Below is a comprehensive KB that covers essential commands for managing Exim […]
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Find High Disk Usage in Linux: A Simple Guide
Is your Linux system running slowly, or are you getting alarming notifications about high disk usage? This guide will provide you with simple commands
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How to Create Redirects with Nginx
A redirect is a way to send both users and search engines to a different URL from the one they initially requested. This guide
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How to change DNS server permanently on Ubuntu 20.04?
In Ubuntu 20.04, I encountered a common issue with DNS server resolution management. The system component responsible for this, systemd-resolved, dynamically updates the /etc/resolv.conf
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How to Upgrade Ubuntu Via Command Line?
Suppose you’re using an older Ubuntu version and are eager to explore the new features, security enhancements, and performance improvements in Ubuntu. In that
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Linux Bash Script: Important Commands To Know
A shell is a command-line interface (CLI) that provides a user with a way to interact with an operating system, execute commands, and manage
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How to Generate PEM Key and Connect to a Linux Machine?
A Private Enhanced Mail (PEM) key is a widely used file format for storing cryptographic keys and certificates. In the context of securing SSH
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Monitoring & Optimizing Linux Memory Usage for Server Performance
Are you struggling with performance issues on your Linux server? Understanding how to check and analyze memory usage is crucial for optimizing system performance
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Managing File Ownership and Group Ownership in Linux
File ownership and group ownership are fundamental concepts in the Linux operating system. Properly managing these attributes is essential for controlling access to files
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Linux File Permissions
Changing file and directory permissions in a Linux system is crucial for controlling access to resources. Properly managing permissions is a fundamental aspect of
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