Tag: linux
All the articles with the tag "linux".
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LVM The Linux Sysadmin’s Guide to Flexible Storage
LVM lets you resize volumes, add disks, and take snapshots without repartitioning — PVs, VGs, and LVs explained with real commands.
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Docker vs Podman: Key Differences
Docker needs a daemon; Podman doesn't. Compare architecture, rootless support, Compose compatibility, and which one belongs in your workflow.
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SSH Tunneling: A Secure Conduit for Your Data
SSH tunnels forward ports over encrypted connections — local forwarding, remote forwarding, and dynamic SOCKS proxy explained.
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Socat: The Swiss Army Knife of Networking
socat relays data between almost any two endpoints — TCP, UDP, Unix sockets, files, and serial ports. The netcat you didn't know you needed.
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User and Group Management in Linux
Create, modify, and delete users and groups on Linux — useradd, usermod, groupadd, sudo access, and /etc/passwd explained.
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Understanding PostgreSQL Connection URIs
Decode the postgresql:// connection string — host, port, database, SSL mode, and the gotchas that cause connection refused at deploy time.
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A Guide to LXC/LXD
LXC/LXD runs full Linux environments in lightweight containers — faster to spin up than VMs and perfect for home lab service isolation.
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Talos OS: API-Driven, Kubernetes-First OS
Talos OS is an immutable, API-driven OS designed purely for running Kubernetes — no SSH, no package manager, pure GitOps.
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Linux System Monitoring: Tools and Techniques
Monitor Linux servers with htop, iostat, netstat, vmstat, and Prometheus — pick the right tool for CPU, memory, disk, and network issues.
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SumGuy’s Guide to Linux Log Analysis
journalctl, grep, awk, and tail -f — read your Linux logs like a pro and find the error before it pages you at 3 AM.
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Linux Home Lab Security: Planning for the Unexpected
Harden your home lab against real threats — SSH hardening, fail2ban, network segmentation, backups, and preparing for when things go wrong.
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Linux Bash Tips and Tricks pt1
Bash tricks that save keystrokes — history expansion, brace expansion, process substitution, and the shortcuts your fingers will thank you for.