I'm having a tough time updating a PTR record on my Linode server. Every time I try, I get the error: "we were unable to perform a lookup for (domain name.tld) at this time." I've already registered my domain and pointed the nameservers to Linode. I've also set the A record through Linode's DNS Manager and let it propagate for 24 hours. I'm starting to feel a bit lost here. One thing I suspect is my firewall might not be allowing inbound UDP traffic on port 53. I'm worried that this might affect the authoritative name server needed for the update. This issue is starting to stress me out because it's affecting my mail delivery. Any suggestions would be greatly appreciated!
2 Answers
The "unable to perform a lookup" error usually means there's a problem with the A record not being fully propagated or resolvable when Linode tries to create the PTR. Your firewall shouldn't be a concern since the lookup is done by Linode's servers using an external nameserver. You can check if your A record is resolving properly by using tools like dig or nslookup with a public DNS server like 8.8.8.8 to see if it's fully propagated before trying the PTR update again.
No problem! Happy to help. Let us know how it goes!
Reaching out to Linode support might be your best bet here. This isn’t likely a problem with your forward DNS records, aside from needing a matching forward record. Since Linode manages the IP space, they are the ones who need to update the reverse record for you. If you're having trouble in the console, they can assist you directly with that.
I get how you feel! It's a bit daunting to ask for more help, but think of it as making sure everything is running smoothly.
Thanks for your reply! I feel a bit bad about reaching out to support since I already opened a ticket last week, but I guess it’s better to be safe than sorry.
Yeah, better to get the issue resolved than to stress over it!

Thanks for your response! It really helped clear my mind. I appreciate it!