[Help request] How do I go about debugging my router?

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Submitted ⁨⁨3⁩ ⁨weeks⁩ ago⁩ by ⁨Gonzako@lemmy.world⁩ to ⁨selfhosting@slrpnk.net⁩

Hi!

I am finally dabbling in some self-hosting and I’m having trouble on the very final steps.

The setup: I have a simple NUC that’s hosting caddy and a dynamic dns solution

I have port forwarded ports 443 and 80 to my local machine

I have a domain pointing towards my public ip

The problem:

¿I can’t seem to get past the router?

Whenever I try to get in through my local network I get an “intercept.hmtl” from the router and anyone to get from outside just gets a timeout.

If anyone has any idea how’d I go about moving forward the domains “gonzako.com” I have managed to get caddy to show the “hello world” through localhost so I know the service is working

Many regards!

Gonzako

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MangoPenguin@lemmy.blahaj.zone ⁨3⁩ ⁨weeks⁩ ago
Are you trying to access the domain from inside your own network that it forwards to? If so that may not work due to the way NAT works.

Try from your cellphone data plan to verify.

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darkan15@lemmy.world ⁨3⁩ ⁨weeks⁩ ago
If your ISP (Internet service Provider) doesn’t have you behind CGNAT or Double NAT (meaning that multiple homes share the same public IP), some ISP block the first block of 1024 ports, so any port below that number is blocked.

If the problem is that ports below 1024 are blocked, but you do have a public IP reaching your home router, you could contact your ISP so they unblock these ports for you (I had to do that once, so at least with my ISP it was as simple as asking).

The way you could test if your public IP reaches your home router is by exposing something on a higher port than 1024 like let’s say 8080, if you can reach a simple web or caddy or any other service from 8080, you can at least confirm, that is the issue.

Be aware that most ISP even if they assign a single IP per house, this IP can be dynamic and can rotate on a regular basis, like daily or weekly

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- Gonzako@lemmy.world ⁨2⁩ ⁨weeks⁩ ago
  Hey! I finally got the site up!
  
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- Gonzako@lemmy.world ⁨3⁩ ⁨weeks⁩ ago
  I think I am behind a double Nat as I’ve tested your higher than 1024 port option and it hasn’t worked
  
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  - darkan15@lemmy.world ⁨3⁩ ⁨weeks⁩ ago
    Well, if you are forwarding the ports from your home router, and you can’t reach it’s the most probable cause, if you are, that means that there is no public IP reaching your home router.
    
    You could contact your ISP and confirm if this is the case, they could offer to assign a public IP for an extra fee, your only other option is to rent a cheap VPS and tunnel traffic between it and your home, but at this point you could also decide to host stuff on the VPS.
    
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