# Opnsense Published articles for Opnsense. This is one page of public article previews, not the complete archive. Follow Next page to continue. Summaries are not the original full articles. ## Building a mini Homelab that fits in my carry-on DevFeed: [Building a mini Homelab that fits in my carry-on]() Original publisher: [Read original article]() Author: jeff@jeffgeerling.com (Jeff Geerling) Published: 2026-08-28T15:00:00Z Content type: opinion Language: en Sources: [Jeff Geerling]() Topics: [Homelab](), [networking](), [Ubiquiti](), [Local-First](), [Hardware](), [SOC]() Tags: [5g](), [arm](), [battery](), [building](), [cloud](), [ethernet](), [fees](), [hardware](), [homelab](), [linux](), [local-first](), [networking](), [opnsense](), [portable](), [ubiquiti](), [unifi](), [video](), [vpn](), [youtube]() ### AI overview The author describes building a portable homelab that fits in carry-on luggage for a trip to Chicago. It supports 1-10 Gbps networking, battery operation, multiple WAN connections, and 12 wired Ethernet connections. The article also shares first impressions of Ubiquiti UniFi, highlighting its local-first operation, optional cloud integration, lack of core licensing fees, and easy web-based management, while criticizing its proprietary ecosystem and limited hardware control. ### Source excerpt I'm traveling to Chicago for VCF Midwest next month. I'll be demoing NTP time history on vintage Macs, with my own GPS-derived NTP service hosted on an Xserve G5, synced via NTP or a strange AppleTalk timing extension from the 1990s. So I built a little 'portable homelab' (pictured above) that supports 1-10 Gbps networking, can run off a small battery for at least an hour, switches between multiple WANs (so I can get my own 5G Internet connection, in case I need it), and gives me 12 wired Ethernet connections. ## The Checks That Lied DevFeed: [The Checks That Lied]() Original publisher: [Read original article]() Author: EduuhMuraya Published: 2026-08-14T00:00:00Z Content type: article Language: en Sources: [EduuhMuraya]() Topics: [networking](), [Firewall](), [Routing (disambiguation)](), [Networks](), [Pi-hole]() Tags: [automation](), [dns](), [firewall](), [infrastructure](), [network](), [opnsense](), [proxmox](), [routing](), [security](), [server](), [servers]() ### AI overview A home-network segmentation test produced misleading green results because the checks did not reliably measure the firewall or connectivity. The article describes routing around the firewall through a dual-homed Proxmox host and a DNS check that treated resolver failures as successful output. ### Source excerpt I segmented my network, wrote tests to prove it, and watched the tests pass while measuring nothing at all. Then the same disease turned up in my home automation, and left a freezer switched off for thirteen hours in a house full of green ticks. ## Adding a backup Internet WAN on my OPNsense Router DevFeed: [Adding a backup Internet WAN on my OPNsense Router]() Original publisher: [Read original article]() Author: jeff@jeffgeerling.com (Jeff Geerling) Published: 2026-07-23T21:00:00Z Content type: tutorial Language: en Sources: [Jeff Geerling]() Topics: [Firewall](), [networking](), [configuration](), [5G](), [Software]() Tags: [5g](), [backup](), [ethernet](), [firewall](), [internet](), [networking](), [opnsense](), [outage](), [router]() ### AI overview A practical guide to adding a portable 5G gateway as a backup WAN on an OPNsense router. It covers assigning a second Ethernet interface, configuring DHCP and outbound NAT, and manually changing gateway priorities to fail over between connections. ### Source excerpt AKA "Spectrum has gone down two weeks in a row and I'm sick of it". I've been borrowing a portable 5G gateway from my Dad for a few weeks, for testing... and two weeks in a row, I've used it as a backup Internet option, since my Spectrum Business cable Internet has gone down. And yes, I'd get AT&T Fiber if I had the option, sadly they don't yet provide service at my studio. So I'm stuck with only one high speed wired provider. I may add on my own 5G backup Internet connection in the future, but we're getting off track. ## Opnsense - Firewall DevFeed: [Opnsense - Firewall]() Original publisher: [Read original article]() Author: EduuhMuraya Published: 2026-03-04T00:00:00Z Content type: article Language: en Sources: [EduuhMuraya]() Topics: [Firewall](), [Internet of things](), [networking](), [configuration]() Tags: [dns](), [firewall](), [infrastructure](), [network](), [opnsense](), [policy](), [security]() ### AI overview An examination of the live OPNsense firewall rules used to isolate an IoT segment, including default-deny behavior, rule ordering, DNS access, firewall-address boundaries, and device-to-device blocking. ### Source excerpt The rules that seal my IoT segment, in the order they have to be written, and the two that look redundant until you understand what they are for. ## Cómo elegir hardware para tu homelab DevFeed: [Cómo elegir hardware para tu homelab]() Original publisher: [Read original article]() Author: Alois Published: 2026-02-09T00:00:00Z Content type: tutorial Language: es Sources: [tengoping.com]() Topics: [Homelab](), [Hardware](), [DDR4](), [lenovo](), [dell](), [intel](), [Firewall](), [Opnsense]() Tags: [ddr4](), [dell](), [enterprise](), [firewall](), [hardware](), [homelab](), [intel](), [ip](), [kvm](), [lenovo](), [mini-pcs](), [opnsense](), [raspberry-pi](), [router]() ### AI overview This Spanish guide explains how to choose hardware for a homelab. It compares used Lenovo, HP, and Dell mini PCs with used enterprise servers, covering virtualization capability, storage, remote management, approximate prices, noise, and power consumption. ### Source excerpt Consejos prácticos para montar un homelab sin arruinarte: mini PCs, servidores usados, almacenamiento y consumo eléctrico. ## Homelab Hardware DevFeed: [Homelab Hardware]() Original publisher: [Read original article]() Author: EduuhMuraya Published: 2026-01-14T00:00:00Z Content type: article Language: en Sources: [EduuhMuraya]() Topics: [Homelab](), [Hardware](), [Network design](), [Kubernetes]() Tags: [amd](), [cost](), [cpu](), [devices](), [firewall](), [hardware](), [home-lab](), [homelab](), [intel](), [kubernetes](), [network](), [opnsense](), [pc](), [performance](), [proxmox](), [self-hosted](), [storage]() ### AI overview An account of the mini PCs used in a homelab, covering their specifications, costs, roles, power efficiency, physical footprint, and the network changes made after part of the Kubernetes cluster was removed. ### Source excerpt The three mini PCs I bought for a Kubernetes homelab, what they cost, and what is left of them eighteen months later. ## My Home Lab DevFeed: [My Home Lab]() Original publisher: [Read original article]() Author: EduuhMuraya Published: 2026-01-13T00:00:00Z Content type: article Language: en Sources: [EduuhMuraya]() Topics: [Homelab](), [Kubernetes](), [GitOps](), [flux](), [Linux](), [networking](), [YAML](), [Firewall](), [Pi-hole]() Tags: [dns](), [firewall](), [flux](), [home-lab](), [kubernetes](), [linux](), [observability](), [opnsense](), [orchestration](), [os](), [proxmox](), [secrets](), [self-hosted](), [servers](), [storage]() ### AI overview A tour of a Kubernetes homelab built on Talos Linux and managed with Flux GitOps. It covers compact mini-PC hardware, Proxmox, OPNsense, Pi-hole, flat networking, resource usage, YAML-based configuration, automated upgrades, and encrypted secrets. The author explains that the original cluster was later torn down and replaced with a smaller Proxmox-based setup. ### Source excerpt A tour of my Kubernetes homelab on Talos Linux with GitOps and full observability, and why I tore the whole thing down in August 2026. ## A homelabber's networking playground using VLANs DevFeed: [A homelabber's networking playground using VLANs]() Original publisher: [Read original article]() Author: Alex Kretzschmar Published: 2023-10-26T00:00:00Z Content type: tutorial Language: en Sources: [Tailscale Community]() Topics: [networking](), [Opnsense](), [Proxmox](), [tailscale]() Tags: [homelab](), [how-to](), [networking](), [opnsense](), [proxmox](), [tailscale](), [video]() ### AI overview A how-to video demonstrates how to create a segmented network zone using Proxmox, OPNsense, and Tailscale. ### Source excerpt Create a segmented network zone with Proxmox, OPNsense, and Tailscale in a new how-to video.