Dear List Trying to use nsupdate method for DDNS with my own BIND9, I fail with the WebUI. There are only three fields to provide information: Hostname, Username and Password. In my opinion nsupdates needs the - ns server address - the TSIG key name - the key algorithm - key length - dynamic host name - numerical IP address I figured out, that the ns server has to be written in the "Hostname"-field, but the rest I couldn't find out how to write the correct information. At best I get a "BAD KEY" error on my server, when I try to update the RR. Unfortunately the Wiki doesn't help, the source code I did not understand and the forum, where I posted [1] this question redirected me to this list. Can some one tell me how to use nsupdate WebUI page of IPFire? Thank you very much. Best regards, Adrian. [1] https://community.ipfire.org/t/nsupdate-ddns-for-bind-how-to-use/7629