Category: Networking
-
Why Your Cloudflare Tunnel Randomly Drops (and How to Fix It for Good)
You set up a Cloudflare Tunnel months ago to expose a service from your homelab. It worked flawlessly, you forgot about it, and life was good. Then one day someone messages you: “Your site’s down.” You check the box and everything looks fine: the service is running, the machine is up, nothing in the logs…
-
Setting Up Passwordless SSH Login between a Client and Two Servers
Setting up passwordless SSH login with key pairs makes connecting to your servers both quicker and more secure, since you’re no longer typing a password every time or relying on one to keep people out. This guide covers generating a key on your client machine and configuring passwordless logins to two separate servers. Step 1:…
-
A Guide to Subnet Masks
Subnet masks are one of the fundamentals of networking, and they’re the thing that decides which part of an IP address identifies the network and which part identifies an individual device on it. Get comfortable with them and a lot of networking stops feeling like guesswork. This guide explains what subnet masks are, how they…
-
Securely Access Your Home Server Using Cloudflare and a Domain
If you’re running a service at home, like Nextcloud, and want to reach it securely from anywhere without opening ports on your router, a Cloudflare Tunnel is one of the cleanest ways to do it. The cloudflared daemon makes an outbound connection to Cloudflare, so your server stays reachable through your own domain over HTTPS,…