Linux automatically uses available memory to cache files and speed up system performance. This behaviour is both normal and efficient. However, during heavy workloads, performance testing, or troubleshooting, you may…
Tag: Linux
How to Limit CPU and Memory Usage for a Process in Linux
November 15, 2025 / Servers, Hosting & EmailManaging CPU and memory usage is essential for maintaining system stability, especially on VPS and servers running multiple applications. Modern Linux distributions use systemd with cgroups v2 to enforce resource…
How to Verify Backup File Integrity in Linux
October 28, 2025 / Security and BackupsAuthenticating the integrity of backup files guarantees that your data can be restored without corruption or loss. Even a successful backup process can produce unusable files if verification is skipped.…
How to Configure Firewall Rules in Linux (UFW, firewalld, iptables)
October 2, 2025 / Servers, Hosting & EmailProper firewall configuration is critical for securing Linux servers, controlling network traffic, and preventing unauthorised access. Linux provides multiple tools like UFW, firewalld, and iptables; each is designed for different…
How to Check Open Ports in Linux (Ubuntu, CentOS, Debian)
September 16, 2025 / Servers, Hosting & EmailMonitoring open ports is an important part of Linux server security and management. Open ports indicate which services are listening for network connections. Knowing your open ports helps prevent illegal…
How to Manage and Modify user Permissions in Linux
August 21, 2025 / Servers, Hosting & EmailIn this article, we have explained how to manage and modify user permissions in Linux. On a Linux system, limiting who can do what is essential for administration and security.…
How to Restrict SSH Access by IP Address on Linux Servers
August 19, 2025 / Servers, Hosting & EmailThis guide helps you keep your Linux server safe by allowing only trusted people to connect to it via SSH. SSH is like a secure door to your server, and…
How to Detect Brute-Force Attacks on a Linux Server
July 31, 2025 / Servers, Hosting & EmailBrute-force attacks are common on public-facing Linux servers, especially through SSH. These attacks involve repeated login attempts using numerous username-password combinations to gain unauthorised access. This guide will help you…
How to Create a Cron Job in Linux
July 5, 2025 / Servers, Hosting & EmailCron jobs are scheduled tasks that run automatically at specified times or intervals on Linux systems. They’re useful for automating repetitive tasks such as backups, updates, or custom script execution.…
How to Track Real-Time Network Usage on Linux with nload
June 28, 2025 / Servers, Hosting & EmailTo diagnose bandwidth-related problems and preserve server health, real-time network traffic monitoring is essential. “nload” is a small, command-line utility that uses real-time graphs to display incoming and outgoing network…
How to use Netstat for network monitoring in Linux
May 16, 2025 / Servers, Hosting & EmailThis article explains how to use Netstat for network monitoring in Linux. Netstat information, such as active connections, listening ports, routing tables, and network interface statistics. It is part of…
How to select the correct Kernel to boot on CloudLinux OS
May 14, 2025 / Servers, Hosting & EmailIn this article, we have explained how to select the correct Kernel to boot on CloudLinux OS. There are many instances where you need to manually shift the server to…
How to configure Swap Space in Linux
April 17, 2025 / Servers, Hosting & EmailThis article explains how to configure Swap Space in Linux. It is important for managing memory efficiently during heavy workloads. Swap space acts as a backup for physical RAM and…
Fix BIND DNS server startup issues in Plesk for Linux
October 1, 2024 / Servers, Hosting & EmailIt is vital to ensure proper DNS functionality, which directly affects domain resolution and website accessibility. These errors indicate missing DNS records, and resolving them promptly is essential for maintaining…