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Tag: networking

All the articles with the tag "networking".

UniFi in a Home Lab: Worth the Tax?

UniFi in a Home Lab: Worth the Tax?

UniFi costs more than an OPNsense router with cheap switches and APs. Here is what the premium buys, what it takes away, and the middle path most labs want.

Keycloak vs Authentik vs Authelia

Keycloak vs Authentik vs Authelia

Keycloak, Authentik and Authelia compared on realms, LDAP and AD federation, SAML, OIDC, clustering and RAM, with Compose files and a pick for each use case.

Firewall Rule Audit: Find the Dead Rules

Firewall Rule Audit: Find the Dead Rules

Find unused firewall rules on a Linux box with nftables counters, then retire them safely with a snapshot-and-diff routine, a jq script, and a systemd timer.

IoT VLANs That Don't Break Chromecast

IoT VLANs That Don't Break Chromecast

Put smart plugs and TVs on an IoT VLAN, then fix Chromecast, AirPlay and Sonos discovery with an mDNS reflector and the right firewall rules. Configs included.

Split-Horizon DNS for a Home Lab VPN

Split-Horizon DNS for a Home Lab VPN

Make jellyfin.home.example.com resolve to a LAN IP at home and over WireGuard or Tailscale, and to your public IP elsewhere. Unbound and AdGuard Home configs.

Home Lab Threat Model: What's Exposed

Home Lab Threat Model: What's Exposed

Mass scanners find a new home lab IP within hours. Audit what the internet can reach, from UPnP to Docker ports to IPv6, then build a threat model that fits.

Catch Your Self-Hosted Apps Phoning Home

Catch Your Self-Hosted Apps Phoning Home

Self-hosted is not silent. Audit outbound calls with DNS query logs, watch live connections, block egress with Docker networks, then flip telemetry opt-outs.

Network Namespaces by Hand, No Docker

Network Namespaces by Hand, No Docker

Rebuild Docker's bridge network with ip netns, veth pairs, a Linux bridge and nftables NAT. Six iproute2 commands, three nft rules, and a 2 AM debugging edge.

VLAN Trunking Gotchas Nobody Warns You

VLAN Trunking Gotchas Nobody Warns You

VLAN configured but traffic still breaks? Native VLAN mismatches, PVID traps on cheap switches, Proxmox bridge gotchas, and Docker macvlan fixes, with commands.

OPNsense Multi-WAN Failover Guide

OPNsense Multi-WAN Failover Guide

Configure OPNsense gateway groups for WAN failover and load balancing, then layer policy-based routing so specific hosts or VLANs use a chosen WAN link.

CrowdSec Across a Home Lab: One Brain

CrowdSec Across a Home Lab: One Brain

One central CrowdSec LAPI, remote log-parsing agents, and bouncers on every box, so an SSH brute-force on one server gets blocked everywhere else too.