Tag

#nftables

3 articles tagged nftables.

Glowing fiber-optic cables weave through dark shelves on a black stone surface

VLAN Tagging for Proxmox VE: Bridges, Containers & Firewall Rules

Most people configure their bridges correctly but still lose traffic between subnets because they misunderstand which packets get tagged, when, and why it matters for your switch ports.

Jul 21, 2026 10 min read

Glowing network firewall shields with clustered IP address groups connected by security policy lines.

Networking, VLANs & Security Hardening

Proxmox Firewall IP Sets and Security Groups Explained

Stop writing duplicate firewall rules for every VM — apply IP sets and security groups to manage policies at scale.

May 26, 2026 9 min read

Glowing server cluster shielded by layered digital barriers blocking streams of red intrusion packets.

Networking, VLANs & Security Hardening

CrowdSec on Proxmox: Cluster-Wide Brute-Force Defense

CrowdSec pre-blocks thousands of known attacker IPs before they reach your Proxmox node — here is the full cluster-ready setup.

May 10, 2026 7 min read