Lots of DNS Server events 5504 on AD DNS server from Cloudflare etc
Hi! I'm getting about 18 events with id 5504 while trying to resolve some DNS names, like fullfiles.xyz. The DNS server is configured to use provider DNS and root hints. I can suppress these messages by disabling root hints or by disabling EDNS0 with dnscmd /config /enablednsprobes 0. I tried to use packet capture on the DC and on the router, and analyzed the results with AI, which answered: "You receive malformed patterns on the WAN interface." Can anybody explain the cause of this problem? Any ideas to fix it? Thanks!
Strange DNS problem on Server 2022
I installed a new Server 2022 DC on my network as the only DC. It serves DNS for our network and for a few weeks all has been working fine. However, lately I have been having a problem using Outlook to access my secondary email address at comcast.net. For long periods the attempt to download email fails. I did some checking and found that when I do a nslookup on imap.comcast.net I get this: Non-authoritative answer: Name: imap.comcast.net (note, there are no IP addresses) If I do the same but specify Google's DNS server (8.8.8.8) I get: Non-authoritative answer: Name: imap.ge.xfinity.com Addresses: 2001:558:fc0a:3:f816:3eff:fea5:2243 2001:558:fc0a:3:f816:3eff:fe95:679f 2001:558:fc0a:3:f816:3eff:fe0c:7c51 2001:558:fc0a:3:f816:3eff:fe51:b939 2001:558:fc0a:3:f816:3eff:fee8:1979 2001:558:fc0a:3:f816:3eff:fe6b:52a6 2001:558:fc0a:3:f816:3eff:fe5d:49ac 2001:558:fc0a:3:f816:3eff:fe84:7ff1 2001:558:fc0a:3:f816:3eff:fef5:7c75 2001:558:fc0a:3:f816:3eff:fe8d:2a36 2001:558:fc0a:3:f816:3eff:fe57:df5e 2001:558:fc11:9:f816:3eff:fee9:ffd6 2001:558:fc11:9:f816:3eff:fedd:4bc5 2001:558:fc11:9:f816:3eff:fe40:d128 2001:558:fc11:9:f816:3eff:fec1:ef59 2001:558:fc11:9:f816:3eff:fe48:d86d 96.118.18.255 96.118.18.251 96.118.18.249 96.118.18.240 96.118.18.254 96.118.17.101 96.118.17.82 96.118.18.242 96.118.19.1 96.118.19.5 96.118.18.230 96.118.17.194 96.118.18.11 96.118.19.0 96.116.224.191 96.116.224.174 Aliases: imap.comcast.net