Networking

Practical home networking guides covering IP addressing, VLANs, routing, switching, Wi-Fi, firewalls, and secure remote access. Each article focuses on usable configurations, troubleshooting, and trade-offs for stable homelab and small-network environments.

A bright editorial network-edge scene showing one carefully allowed external path leaving a private home network while other paths remain closed.

Sep 19, 2026H.W. Crestwood

Port Forwarding Demystified: How to Expose Services Safely (or Not at All)

A bright editorial home-network scene showing guests on Wi-Fi while a private NAS remains protected behind a subtle network boundary.

Sep 17, 2026H.W. Crestwood

Guest Networks Made Simple: Keeping Friends off Your Private NAS Shares

A bright editorial home interior showing a Wi-Fi router on an open shelf with signal waves interacting with walls, a mirror, and nearby objects.

Sep 13, 2026H.W. Crestwood

Router Placement 101: The Physics of Obstacles, Mirrors, and Antenna Orientation

A bright editorial home-network scene showing an ISP gateway and a second router creating two layered NAT boundaries.

Sep 8, 2026H.W. Crestwood

Double NAT Explained: Why It Happens and How to Fix It Without Losing Your Mind

A bright editorial network scene showing a managed switch with one subtle untagged trunk path separated from several tagged VLAN paths.

Aug 31, 2026H.W. Crestwood

Native VLANs Explained: Why You Should Change Default VLAN 1

A bright editorial Wi-Fi scene showing one access point serving several devices with subtle separation between the clients.

Aug 22, 2026H.W. Crestwood

Wireless Isolation: Protecting Devices on the Same Wi-Fi Network

A clean firewall management interface using named host, network, and port groups to simplify a large ruleset.

Aug 20, 2026H.W. Crestwood

Alias Creation in Firewalls: Managing Hundreds of Rules Cleanly

A bright editorial home-network scene showing an older router repurposed as a Wi-Fi access point with a subtle secondary wireless bridge path.

Aug 14, 2026H.W. Crestwood

Bridge Mode vs. AP Mode: How I Use Old Routers as Access Points

A dark editorial home-network scene showing a modest router becoming more capable and intentional after an OpenWrt-style upgrade.

Aug 8, 2026H.W. Crestwood

Why OpenWrt Made Me Respect Cheap Routers More Than I Expected

A dark editorial home-network scene showing one central firewall appliance bringing order to several segmented network paths.

Aug 8, 2026H.W. Crestwood

Why I Chose OPNsense for My Home Network