linux Archives - Page 9 of 23

Networking tutorial - IT technology blog

Surviving ‘Neighbor Table Overflow’: Tuning Linux ARP for High-Density Networks

May 16, 2026

Is your Linux server dropping packets with 'Neighbor Table Overflow'? Fix it by tuning sysctl gc_thresh parameters for large Layer 2 and Kubernetes networks.

Linux

Stop the Linux OOM Killer from Crashing Your Production Apps

May 15, 2026

Is the OOM Killer terminating your critical Linux processes? Learn how to diagnose logs, adjust process priorities, and tune kernel memory settings to keep your server stable.

HomeLab

Taming the Power Bill: Optimizing Your HomeLab with Powertop and TLP

May 15, 2026

Slash your HomeLab's electricity bill. This guide covers real-world power optimization using Powertop auto-tuning, TLP configuration, and smart scheduling to reduce idle draw.

Linux

SSH ProxyJump and Bastion Hosts: A Practical Guide to Secure Linux Access

May 15, 2026

Master SSH ProxyJump to securely manage private Linux servers. This guide provides a setup walkthrough, configuration tips, and security best practices for Bastion Hosts.

Networking

Build Scalable Layer 2 Overlays: EVPN/VXLAN with FRRouting and Open vSwitch on Linux

May 15, 2026

Ditch the limitations of 802.1Q. This guide shows you how to implement a high-performance EVPN/VXLAN overlay on Linux using FRRouting and Open vSwitch for ultimate scalability.

Networking

Advanced Network Diagnostics: Mastering hping3 for Firewall Testing on Linux

May 15, 2026

Ditch the limitations of standard ping. This guide explores hping3 for advanced Linux network diagnostics, showing you how to craft TCP packets and test firewall rules with precision.

Linux

Linux find and xargs: Pro-Level Batch File Processing

May 14, 2026

Master Linux find and xargs to process thousands of files without breaking your server. Learn performance-optimized techniques for searching, permissions, and parallel processing.

Linux

Mastering systemd-resolved: A Guide to DNS, mDNS, and Troubleshooting on Modern Linux

May 14, 2026

Master systemd-resolved on modern Linux. This guide provides actionable steps to fix DNS issues, configure mDNS, and optimize performance using the stub resolver and resolvectl.

Networking

Anycast on Linux: Deploying BGP with FRRouting for Sub-Second Failover

May 14, 2026

Anycast isn't just for CDNs. Learn how to use BGP and FRRouting on Linux to achieve sub-second failover and ultra-low latency for your critical DNS and Web services.

Linux

Stop the Linux Audio Headache: A 6-Month PipeWire Switch Report

May 14, 2026

My 6-month experience switching to PipeWire. Learn how to fix Linux audio fragmentation, achieve 5.3ms latency, and enable high-quality Bluetooth codecs like LDAC.