6 posts tagged with #firewall
How to block specific websites using firewall aliases, prevent DNS bypass with a NAT redirect, resolve LAN hostnames in logs, and apply category-based blocking for gambling, malware, and torrent sites.
Learn how to block websites and categories, resolve LAN hostnames in firewall logs, and harden OPNsense itself — practical steps every homelab admin should complete after the initial install.
Seven steps to harden a fresh OPNsense install: restrict the admin interface, lock down SSH, enable automatic updates, disable unused services, audit firewall rules, and set up Suricata IDS.
Your ISP router is a black box you cannot inspect or extend. This guide walks through replacing it with OPNsense running as a Proxmox VM on an Intel N100 MiniPC — with full traffic visibility, per-device rules, and IDS/IPS.
Configure OPNsense to expose GitLab Container Registry directly while keeping GitLab UI behind Cloudflare Tunnel. Complete guide for self-hosted setups.
Learn how to configure OPNsense IDS/IPS using Suricata to detect suspicious network activity. Includes real-world attack examples and safe simulation techniques for testing your security setup.