Linux - ITNotes

Ditch the VM Weight: High-Performance Container Management with LXC/LXD

April 5, 2026

Is your server choking on virtual machine overhead? Discover how LXC/LXD system containers provide the isolation of a VM with the blazing speed of a native process.

Linux

Advanced Linux Debugging: Hunting Silent Bugs with strace and ltrace

April 4, 2026

Master strace and ltrace to solve Linux application hangs and performance issues. Learn how to track syscalls, library calls, and identify bottlenecks with real-world examples.

Linux

Stop Wasting Hardware: Tuning Linux Kernel Parameters with sysctl

April 4, 2026

Is your server dropping connections despite low CPU usage? Learn how to tune Linux kernel parameters using sysctl to optimize networking, memory, and file limits for high-performance production environments.

Linux

Advanced Linux Networking: Moving Beyond Legacy Tools with iproute2

April 1, 2026

Ditch net-tools for iproute2. Learn how to implement Policy-Based Routing, VLANs, and Network Namespaces with real-world performance tips and practical examples.

Linux

Network Bonding and Teaming on Linux: Boost Speed and Ensure Redundancy

March 28, 2026

After six months of continuous operation, I'm sharing my experience with network bonding and teaming on Linux. Learn how to combine multiple network cards to boost speed, ensure failover redundancy, and significantly improve network performance on your servers.

Linux

Compiling and Installing Software from Source on Linux: Dependency Management and Optimization

March 26, 2026

Learn to compile and install software from source on Linux, gaining full control over features and optimizations. This comprehensive guide walks you through dependency management, the build process, configuration, and crucial verification steps. Master custom installations for your specific needs.

Linux

Centralized Log Management on Linux: Your Rsyslog and Logrotate Playbook

March 25, 2026

Centralized log management is vital for monitoring and troubleshooting Linux environments effectively. This guide provides a hands-on approach to setting up rsyslog for collecting logs and logrotate for managing their lifecycle. Learn to configure your Linux systems for robust, efficient log handling.

Linux

KVM/QEMU Linux VM Management: A Comprehensive Guide to Virtual Machine Installation, Configuration, and Optimization

March 24, 2026

Dive into the world of Linux virtualization with KVM/QEMU. This guide covers everything from installation and basic VM creation to advanced configuration and performance optimization, sharing real-world insights for efficient virtual machine management.

Linux

Linux Process Management and Resource Control: Optimizing Server Performance with nice, renice, cgroups, and systemd

March 22, 2026

Take charge of your Linux server's performance! This comprehensive guide explores `nice` and `renice` for quick priority tweaks, then dives deep into `cgroups` and `systemd` for setting robust CPU, memory, and I/O limits, guaranteeing optimal system stability.

Linux

Boost Network Performance: Setting Up a Local DNS Server on Linux with Dnsmasq

March 22, 2026

This guide helps you set up a local Dnsmasq DNS server on Linux for improved network performance and straightforward internal domain management. It covers installation, configuration, and integration, offering a lightweight alternative to complex DNS solutions.