Linux Archives - Page 2 of 19

Linux Disk Encryption with LUKS and Cryptsetup: Setup and TPM 2.0 Auto-Unlock

October 10, 2026

Eliminate manual passphrase prompts during reboot cycles. This practical guide covers configuring LUKS2 volumes and automating disk decryption via TPM 2.0 and systemd-cryptenroll.

Linux

Managing Linux Kernel Modules with DKMS and modprobe: Automatic Driver Rebuilds

October 9, 2026

Upgrading your Linux kernel often breaks third-party drivers like custom NICs, Wi-Fi adapters, or proprietary controllers. Discover how to pair DKMS with modprobe for automated driver recompilation and bulletproof kernel maintenance.

Linux

Mastering Nftables on Linux: Modern Firewall Configuration to Replace Iptables

October 8, 2026

After six months running nftables across 12 production VPS instances, the migration from iptables turned out to be the best firewall decision I've made. This guide covers the real problems with iptables, how nftables solves them, and a practical migration process with a rollback safety net.

Linux

Mastering Linux Capabilities: Fine-Grained Process Permissions with getcap and setcap as a SUID Alternative

October 8, 2026

Linux Capabilities let you replace SUID with fine-grained privilege control — giving binaries only the specific permissions they need, nothing more. This guide covers getcap and setcap with practical examples for DevOps engineers managing production Linux servers.

Linux

Automated Linux Log Rotation with Logrotate: Compression, Permissions, and Disk Space Prevention

October 7, 2026

Uncontrolled log growth can fill your drives and crash production services. Learn how to set up automated log rotation with Logrotate, configure gzip compression, preserve user permissions, and prevent disk outages.

Linux

Master SELinux on RHEL and Rocky Linux: Managing Contexts, Booleans, and Fixing Access Denials with audit2allow

October 7, 2026

Troubleshoot and fix 2 AM SELinux permission errors on RHEL and Rocky Linux without disabling security. Learn how to diagnose AVC denials, relabel contexts, toggle booleans, and build custom policies with audit2allow.

Linux

Btrfs and Snapper Guide: Subvolumes, Automated Snapshots, and Fast Rollbacks

October 7, 2026

Recover Linux servers from broken updates in seconds. Learn how to configure Btrfs subvolumes, schedule automated Snapper snapshots, and execute instant rollbacks.

Linux

Configure Linux Network Bonding and LACP with NetworkManager and Netplan

October 4, 2026

Learn how to configure Linux network bonding and 802.3ad LACP using Netplan and NetworkManager. This guide covers mode comparisons, configuration steps, and real-time failover verification.

Linux

Managing Resource Limits with Cgroups v2 and Systemd Slices on Linux

October 3, 2026

Learn how to partition and protect Linux server resources using modern Cgroups v2 and systemd slices. Control CPU bandwidth, memory ceilings, and disk I/O per service to eliminate noisy neighbors.

Linux

Mastering Linux Security Auditing with Auditd: Rules, File Monitoring, and Log Analysis

October 3, 2026

Secure your Linux infrastructure using Auditd. This step-by-step guide explains writing persistent kernel rules, tracking file tampering, and analyzing logs with ausearch and aureport.