Welcome to the Linux Engineering Hub. Explore production-tested walkthroughs, kernel parameters, container stacks, and storage architectures.
Core Basics & Services
Shell and file basics, permissions, processes, filesystems, package managers, and service scheduling.
Navigate the Linux Shell â
Linux Processes and Jobs â
Linux Filesystems and Mounts â
Search and Inspect Files â
Create and Extract tar Archives â
Package Management â
Containers & Orchestration
Docker daemon production configuration, logging drivers, compose networking, and microservice patterns.
Security & Hardening
SSH Ed25519 authentication, UFW firewall rules, kernel Auditd logging, and AIDE file integrity monitoring.
Browse SSH Hardening â
Build an nftables Host Firewall â
Browse Auditd & AIDE Integrity Monitoring â
Storage & Backup
ZFS pools, raidz architectures, Btrfs subvolumes, automated snapshots, and offsite Rsync sync scripts.
Expand an LVM Volume Online â
Set Up a Restricted NFS Share â
Browse ZFS and Btrfs Storage â
Diagnostics & Troubleshooting
Layer 2 through Layer 7 network failure triage, socket analysis with ss, and packet forensics with tcpdump.
Troubleshoot Linux DNS Resolution â
Browse Network Interface Triage â
Change a systemd Service with a Drop-In â
Monitoring & Time Services
Enable and inspect system activity collection, read historical metrics, and verify time synchronization with chrony.
