Posts
Page 14 of 41
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Proxmox NAT Bridge: One IP, Many VMs
Run multiple Proxmox VMs and LXC containers behind a single public IP using NAT bridging and iptables port forwarding. Updated for Proxmox VE 8.
Updated:7 min read -
Linux Privilege Escalation: The Defensive Playbook
Attackers love finding ways to go from www-data to root. Here's how they do it, and more importantly, how you harden your Linux boxes to stop them.
7 min read -
Adding Extra Swap to Linux
Out of RAM and no time to reimage? Add swap via a file on any partition using mkswap, swapon, and fstab — done in under 5 minutes.
Updated:5 min read -
Bash for loops sequential counting
Master bash for loops, while loops, and seq for sequential counting — iterate over files, ranges, and arrays without losing your mind.
Updated:4 min read -
Directory FileCount
Count files in a directory (recursively or not) with find, ls, and tree — quick one-liners for when du just isn't telling you enough.
Updated:5 min read -
The Embedding Model Choice Nobody Explains
Most people use OpenAI's embeddings because it's easy. But local embeddings exist. How to pick and when it actually matters.
Updated:6 min read -
EmDash: WordPress Done Right, Finally
Cloudflare rebuilt WordPress from scratch in TypeScript using AI agents. Sandboxed plugins, Astro themes, self-hostable. It's called EmDash and it's actually interesting.
5 min read -
Find out whats taking up all the hdd space
Your disk is full and du is lying to you. ncdu, df, and find tricks to track down space hogs before your server goes down at 2 AM.
Updated:6 min read -
GPU Memory Math: Will This Model Actually Fit?
Before you download a 70B model, calculate if it fits. The formulas, the gotchas, and a quick calculator you can actually use.
Updated:6 min read -
Linux CLI Tarball Extraction — Flags, Formats, Gotchas
Extract tar.gz, tar.bz2, tar.xz — flags demystified, compression compared, directory extraction, and the gotchas that trip you up.
Updated:6 min read -
Linux su with custom shell
Use su with a specific shell to switch users without the default login shell — useful when /etc/passwd points to something unexpected.
Updated:5 min read -
Logrotate & Compression
logrotate keeps your /var/log from eating the disk — configure rotation schedules, compression, and retention for any service log.
Updated:5 min read
