sysadmin Archives - Page 4 of 17

Production ZFS on Linux: Build Resilient Pools, Tune Datasets, and Automate Snapshots and Scrubs

October 1, 2026

Learn how to deploy OpenZFS on Linux to eliminate silent bit rot. This practical guide covers creating 4K-aligned mirror pools, tuning dataset record sizes for MySQL and PostgreSQL, managing instant snapshots, and automating scrubs.

Linux

Stop Digging Through Logs: Use Logwatch for Daily Linux Health Reports

September 21, 2026

Stop wasting time manually searching through system logs. This guide shows you how to use Logwatch to automate log analysis and send daily summaries to your inbox, helping you catch server issues before they become disasters.

Linux

Automating Disk Partitioning: A 6-Month Production Review of systemd-repart

September 21, 2026

Ditch brittle shell scripts for disk management. This 6-month review explores how systemd-repart provides a declarative, safe way to manage Linux partitions at scale.

Networking

Linux Networking at Scale: Mastering IRQ Affinity, RSS, and RPS

September 6, 2026

Is your Linux server dropping packets despite low CPU usage? Learn how to fix the 'Single Core Trap' by tuning IRQ Affinity, RSS, and RPS for high-performance networking.

Networking

Fixing Linux Network Lag: A Guide to TCP Retransmission

September 6, 2026

Is your Linux server feeling sluggish despite low CPU usage? Learn how to use ss, nstat, and TShark to diagnose TCP retransmissions and fix the network bottlenecks killing your performance.

Linux

Mastering /etc/fstab: How to Auto-mount Disks Without Breaking Your Boot

August 28, 2026

Avoid the dreaded Linux emergency mode. Learn how to safely configure /etc/fstab using UUIDs, handle NFS shares with 'nofail', and test your changes before rebooting.

Linux

Bluetooth on Linux: Ditch the Flaky GUIs and Master bluetoothctl

August 26, 2026

Tired of Bluetooth connection errors on Linux? Learn how to use bluetoothctl and BlueZ to pair devices, fix firmware issues, and manage audio profiles like a pro.

Linux

Linux Power Management: How to Double Your Battery Life with TLP and Powertop

August 25, 2026

Boost your Linux laptop's battery life by moving away from generic defaults. This guide provides a technical deep-dive into TLP and Powertop configuration for maximum efficiency.

Linux

Troubleshooting Linux at Runtime: A Practical Guide to BCC and eBPF

August 25, 2026

Stop guessing why your Linux server is slow. Learn how to use BCC and eBPF tools like execsnoop, biolatency, and tcptop to diagnose I/O, network, and process issues in real-time.

Linux

Recovering Deleted Linux Partitions: A Real-World Guide to TestDisk and PhotoRec

August 24, 2026

Accidentally deleted a partition or formatted a drive? This guide walks you through using TestDisk and PhotoRec to recover lost data on Linux, based on real-world emergency scenarios.