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Wait, I've always wondered how do the custom DNS services work if your IP changes every 12/24h? And if you're begin CGNAT so you share your IP with hundreds of
by milankragujevic 7y ago
Wait, I've always wondered how do the custom DNS services work if your IP changes every 12/24h? And if you're begin CGNAT so you share your IP with hundreds of users?
- tecleandor 7y agoIf you have a dynamic IP and use regular DNS, NextDNS allows you to ping them on IP change (via an app or a call to their API via a simple curl) On your cellphone, there's an App that creates a fake vpn If you're using DNS over HTTP or TLS, you can add an identifier to your requests, so NextDNS knows who you are even when you change IP addresses or you are behind a NAT or CGNAT.
- milankragujevic 7y agoAh, nice. I didn't realize DDNS-like client apps can be used to maintain DNS client profile info with a regularly updating IP address. Cool!
- AnonC 7y agoCheck out the NextDNS FAQ [1] and navigate to the question titled “What is Linked IP?” [1]: https://nextdns.io/faq https://nextdns.io/faq
- m-p-3 7y agoI tied my hostname to my NextDNS account, so that was quite easy to manage as I already keep that one up-to-date through DNS-O-Matic on my router.
- jccooper 7y agoYou have to ping it from your machine periodically so it can pick up the new IP, either manually or automatically, or you can use existing dynamic DNS. As for really wide NAT... dunno. May just be incompatible if there's more than one user in your block.
- ThePowerOfFuet 7y agoYou can give them your dynamic CNAME and they can follow you.