So maybe I am missing something obvious, but here goes:

I’ve got a small server at home, and I have simply.com pointing various domains to it. Works fine, nginx routs the traffic where it needs to go.

But whenever I am at home and connected to wifi I have to use the internal address and port to reach my server, e.g. 192.168.0.192:8096 for my Jellyfin server. If I use the public URL at home, i hit the login page to my router.

This is annoying when I use apps, as I need to switch between the public URL and the internal address as I come and go from my home…

What are my options for doing something about this? I want to use the public URL at home too…

24 points

You may have to set up split zone DNS so names resolve to private IPs when at home but resolve to public addresses when not home.

permalink
report
reply
16 points

I use pihole as my home DNS to do that

permalink
report
parent
reply
5 points

This is what I do as well. I use terraform/tofu and add two entries whenever I add a new domain, one for my external provider and one for my pihole pointing at my internal IP for my home network.

permalink
report
parent
reply
17 points
*

I can’t remember exactly what its called, but something like router NAT loopback is what you want. I’ll have a look around. But if you set it right, things should work properly. It might be a router setting.

Found it: https://community.tp-link.com/en/home/stories/detail/1726

permalink
report
reply
14 points
*

Thanks - I have an icotera i4850 router which claims to support NAT loopback, but I can’t figure out where to do it and it seems like the manual is gone from the internet :) Might have to ask my internet provider if they have a PDF somewhere.

Edit: D’oh, it’s a checkbox in the port forwarding interface! Thanks a bunch, didn’t know what to look for before your reply :)

permalink
report
parent
reply
8 points

Thanks for posting this! I have the same router.

permalink
report
parent
reply
11 points

Another name, depending on the exact context, is “hairpin NAT”. Should make googling with the specific router OP has easier.

permalink
report
parent
reply
4 points

I think the term often used is “NAT reflection”.

permalink
report
parent
reply
3 points

Never heard that term, but its a very obscure concept, so wouldn’t surprise me if it had multiple names. Probably vender specific names?

Seems quite a few people havent heard of it, hence a lot of the split DNS answers :/

permalink
report
parent
reply
15 points

On my Fritzbox, I needed to add all my Subdomains to a list under:

DNS Rebind Protection Your FRITZ!Box suppresses DNS responses that refer to IP addresses in its own home network (DNS rebind protection). Here you can specify exceptions for which DNS rebind protection should not apply. Do this by entering the complete name of the host (domain name including the subdomain) in the list.

That’s under network settings, advanced. In case you have that.

permalink
report
reply
4 points

Indeed it is DNS rebind protection.

I use wildcard on my Fritzbox. I added *.mydomain.com and my MyFritz address *.er467.myfritz.net

Important for everyone who makes changes on DNS rebind protection: You will need to completely RESTART your Fritzbox. Even if you add a line, or edit. One domain per line. It will not work without it ☝🏻

permalink
report
parent
reply
4 points

usually in your router settings you can change local DNS settings. you can set your domains and subdomains to point to your server’s local IP.

permalink
report
reply
4 points
*

Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I’ve seen in this thread:

Fewer Letters More Letters
DNS Domain Name Service/System
IP Internet Protocol
NAT Network Address Translation

3 acronyms in this thread; the most compressed thread commented on today has 15 acronyms.

[Thread #825 for this sub, first seen 23rd Jun 2024, 06:25] [FAQ] [Full list] [Contact] [Source code]

permalink
report
reply

Selfhosted

!selfhosted@lemmy.world

Create post

A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don’t control.

Rules:

  1. Be civil: we’re here to support and learn from one another. Insults won’t be tolerated. Flame wars are frowned upon.

  2. No spam posting.

  3. Posts have to be centered around self-hosting. There are other communities for discussing hardware or home computing. If it’s not obvious why your post topic revolves around selfhosting, please include details to make it clear.

  4. Don’t duplicate the full text of your blog or github here. Just post the link for folks to click.

  5. Submission headline should match the article title (don’t cherry-pick information from the title to fit your agenda).

  6. No trolling.

Resources:

Any issues on the community? Report it using the report flag.

Questions? DM the mods!

Community stats

  • 4.8K

    Monthly active users

  • 3.5K

    Posts

  • 75K

    Comments