Trying to update && upgrade but getting that error. I’m not sure how it happened but should I just manually add the DNS record for ports.ubuntu.com? I’m using pi-hole. I’m worried this is a MITM attack or some hacker trying to push malware. Does anyone have experience with this?
I tried to update CachyOS just now and it couldn’t resolve the domain name.
Swapped out the malware filtering DNS Quad9 for whatever the default DNS is and it works fine. Sure hope this doesn’t mean anything.