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Dynamic IP - Self hosting (lemmy.ml)
submitted 2 years ago by to c/selfhosted@lemmy.world
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Im sure this has been asked before i juat can't find where it has been - Maybe need to work on how to search Lemmy better. But...

Id like to eventually self host some sevices that require external access. While I have IpV6 addresses my IPV4 is dynamic.

Whats the best free way to be able to point some domains/ subdomains I have to my external dynamic IP and keep it updated. Im running OpenWrt on my router. - So possibly should be posting there.

Free Dyndns services seem to be a bit crap. Do I need to pay for a VPS? (seems to defeat the point of self hosting)

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[–] 2 points 2 years ago* (last edited 2 years ago)

Cloudflare has an api for easy dynamic dns. I use oznu/docker-cloudflare-ddns to manage this, it's super easy:

docker run \
  -e API_KEY=xxxxxxx \
  -e ZONE=example.com \
  -e SUBDOMAIN=subdomain \
  oznu/cloudflare-ddns

Then I just make a CNAME for each of my public facing services to point to 'subdomain.example.com' and use a reverse proxy to get incoming traffic to the right service.

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