> On 21 Feb 2022, at 20:15, Paolo Galtieri <pgalti...@gmail.com> wrote: > > Folks, > I have 3 Linux systems, one running F31 and 2 running F34. On one of the > F34 systems I have a local DNS server running. This has worked fine in the > past, but now I'm seeing strangeness on the 2 F34 systems.
F31 is real old now. > > I added a host to the DNS server for normal lookup and reverse lookup. On > the F31 system both: > > host centos8-opstcore-vm.homenet172-16-96.com > > and > > host 172.16.96.20 > > work. The first returns 172.16.96.20 and the second returns > centos8-opstcore-vm.homenet172-16-96.com. > > On the F34 which is the DNS server the first works, but the second fails with: > > Host 20.96.16.172.in-addr.arpa. not found: 3(NXDOMAIN) > > On the other F34 system I get: > > host 172.16.96.20 > > ;; connection timed out; no servers could be reached > > The interface has the DNS server pointing to the correct system. If I run: > > nslookup > > server 192.168.10.66 > Default server: 192.168.10.66 > Address: 192.168.10.66#53 > > 172.16.96.20 > 20.96.16.172.in-addr.arpa name = centos8-opstcore-vm.homenet172-16-96.com. > > > > Then it works. > > What do I need to do on F34 systems to get DNS lookups working? > > Any help is appreciated. I would check what is in /etc/resolv.conf for both machines. Do you have any dns caching on any of the hosts? If you can repro at will next I would use wireshark to see what is send for the look ups. Barry > > Paolo > > _______________________________________________ > users mailing list -- users@lists.fedoraproject.org > To unsubscribe send an email to users-le...@lists.fedoraproject.org > Fedora Code of Conduct: > https://docs.fedoraproject.org/en-US/project/code-of-conduct/ > List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines > List Archives: > https://lists.fedoraproject.org/archives/list/users@lists.fedoraproject.org > Do not reply to spam on the list, report it: > https://pagure.io/fedora-infrastructure _______________________________________________ users mailing list -- users@lists.fedoraproject.org To unsubscribe send an email to users-le...@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@lists.fedoraproject.org Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure
