Tutorials
Offsite Backup and Replication with Plakar
Replicate plakar snapshots to a remote server over HTTPS or to S3-compatible object storage. Automate backups and offsite sync with plakar built-in scheduler running as a systemd service on Debian 12 or Ubuntu 24.04.
Back Up Your Linux VPS with Plakar
Install plakar on Debian 12 or Ubuntu 24.04, create an encrypted deduplicated backup store, back up filesystem paths and databases via stdin piping, schedule automated backups, and restore files or full database dumps.
Nginx Server Blocks: Host Multiple Domains on One VPS
Configure Nginx server blocks to serve multiple websites from a single VPS. Two full domains, secure defaults, per-site logging, and complete verification included.
Fix Docker Bypassing UFW: 4 Tested Solutions for Your VPS
Docker manipulates iptables directly and ignores UFW rules. Your container ports are exposed to the internet even with ufw deny active. Here are four solutions with tradeoffs, each verified by scanning from an external host.
Install Nginx on Debian 12 and Ubuntu 24.04 from the Official Repository
Install Nginx from the official nginx.org repository on Debian 12 or Ubuntu 24.04. Covers signing key setup, apt pinning, firewall rules for both UFW and nftables, systemd management, and verification after every step.
SSH Hardening on a Linux VPS: Complete sshd_config Security Guide
Lock down SSH on your Debian 12 or Ubuntu 24.04 VPS. Ed25519 key generation, sshd_config hardening, ProxyJump bastion setup, cipher hardening, and ssh-audit verification. Tested on Debian 12 and Ubuntu 24.04.