Here's a question that stumps most self-hosters: if your router dies at 2 AM, where do you find the instructions to fix it?

Not on the internet — that's down. Not on your fancy self-hosted wiki — that runs on the server you can't reach. You're stuck googling on phone data, half-asleep, cursing.

Let's fix that. You'll build a tiny offline emergency manual that survives outages.

Why your normal wiki fails you

Most people put their network notes in a self-hosted app like BookStack or a family wiki. Smart — until the network itself breaks. The one moment you need those notes is the exact moment they're unreachable.

The fix is a manual that lives outside your normal stack, on a device you always have: your phone.

Step 1: Write down the 6 things that actually matter

Open a plain text file. Not a fancy app. Just text. Write:

  • Router admin login (IP, username, password)
  • ISP support phone number and account number
  • WiFi network names and passwords
  • How to power-cycle your modem (the exact order)
  • Your server's IP address and how to restart it
  • Static IPs of key devices

Plain text opens on any device, forever. No app required.

Step 2: Save it in three places

One copy on your phone (a Notes app that works offline). One printed page taped inside a cupboard. One on a cheap USB stick in a drawer.

Sounds low-tech. That's the point. When everything digital fails, paper wins.

Step 3: Add photos of the messy stuff

Take pictures of your router's back panel, your cable connections, and the sticker with the default password. Save them next to the text file.

When you're stressed and re-plugging cables, a photo of "how it looked when it worked" is priceless.

Step 4: Encrypt the sensitive copy

Passwords in plain text feel wrong — because it is. Use a free tool like Cryptomator or a password-protected zip for the phone and USB copies. The printed copy? Keep it somewhere only you access.

Balance matters. Too locked-down and you can't open it during a crisis. Too open and it's a leak. A single password you actually remember is the sweet spot.

Step 5: Test it once

Turn off your WiFi. Now open your manual using only your phone. Can you read everything? Can you follow the steps without googling?

If yes, you're done. If you had to look something up — add that missing piece now.

The mindset shift

Self-hosting is about control. But real control means planning for the moment your setup breaks, not just when it hums along nicely.

Your actionable takeaway: spend 15 minutes tonight writing a plain-text file with your router login, ISP number, and restart steps. Save it to your phone's offline notes. That single file will save you an hour of panic the next time something dies.