Does Netcup have any firewall?
No.
the server does not resolve custom name servers from cpanel. Emails etc. do not work.
Are you talking about the authoritative name servers and sending E-Mails from your own domain?
Those are completely different from the resolving name servers you would enter in the resolv.conf.
I have never had DNS propagation problems with other providers, but with netcup I am having DNS problems.
Please answer my question. If you have DNS problems, how does your DNS look like?
Please answer my question. If you have DNS problems, how does your DNS look like?
dns are not applied at server level, name servers do not propagate.
ns1.site.net IP
ns2.site.net IP
have been registered on cpanel with relative ip address. Rdns and hostname have been updated. But on the resolv.cnf file I have:
46.38.225.230
46.38.252.230
are loaded automatically by netcup. changing to 1.1.1.1, 8.8.8.8 does not work. I can't understand.
dns are not applied at server level, name servers do not propagate.
ns1.site.net IP
ns2.site.net IP
Again those seam to be authoritative name servers and they have nothing to do with resolving name servers that you would enter in the resolv.conf.
If you want to change the name server of your domains, you have to do it in the domain registry at your domain provider, and not your server.
But on the resolv.cnf file I have:
46.38.225.230
46.38.252.230
are loaded automatically by netcup. changing to 1.1.1.1, 8.8.8.8 does not work. I can't understand.
What distribution are you using? Maybe you need to change them via systemd-resolved or disable systemd-resolved all together. Those are the resolving name servers and they have nothing to do with authoritative name servers, rdns and hostnames.
