What is Linked IP
In order to associate a configuration with a network or a device, NextDNS uses different tricks depending on the DNS protocol used. For DNS over TLS (DoT), the configuration id is embedded into the hostname, for DNS over HTTPS (DoH), it is in the URL path and for UDP over IPv6, it is in the last bits of the IP. Unfortunately, for legacy UDP over IPv4, there is no such easy trick. Because IPv4 is a scarce resource, it would not be possible to attribute 2 IPv4 to every configuration. Instead, you have to associate the IP of your network with your configuration. We use a pool of IPv4 to let you link the same IP with different configurations if needed. You only need to link your IP when using unencrypted DNS over UDP/IPv4.
To link your IP, you just need to click on the link button in the setup tab of the interface. You will have to repeat this operation anytime your IP changes if it is dynamic. You can also opt for our DDNS solution: Instead of manually linking your IP, you give us a hostname that points to your IP, and use a DDNS solution to keep it up to date. The third option is to call a URL from a script whenever your IP changes.
Linking my static IP with nextDNS account Web filters configuration will work and second can we use Nextdns DOH and link IP same time will work together?
With DDNS linking it says it gets updated every minute, AFAIK most ISP's assign new dynamic IP's anywhere between 1-3 days & thus checking the IP every minute seems unnecessary use of your resources IMO. Could make it longer in the scale of hours maybe.
This is just my thoughts, I am a novice so there might be a very valid reason to be checking the user IP every minute.
Can anyone share a script to call the URL to update the IP using DDWRT?
Hello, I think my concern is appropriate to post here. I have subscribed to NextDNS so that ads do not pop up on Roku TV homescreen for my kids sake. I would like to learn how to keep my configuration linked to my IP. For some reason, I have to keep going back to my account on the NextDNS site and link my IP to my configuration over and over. Ads go away for awhile but then pop back up and have to relink. I have already changed my routers DNS addresses to the Next DNs ones.
If someone could give me some steps or advice as to what to do, am I missing something? Thanks.
Hello, Is there a way to update the linked IP manually if you don't happen to be on that network at that time? I have a second network that I want to administer remotely. Thx
At my site I have 2 ISP and thus 2 IP addresses. It appears Nextdns only supports 1 IP address for Linked IP. Since I distribute traffic across the 2 ISP (not working in backup mode) half of the network can not use Nextdns.
Is there a way to link 2 (outside) IP addresses?