dns0.cl.cam.ac.uk
The domain dns0.cl.cam.ac.uk answers at IP address 128.232.0.19. This domain declares no mail servers, so it cannot receive mail in its own name. It also publishes 5 TXT records, used to verify domain ownership with external services and to configure mail security through SPF, DKIM and DMARC.
A A records
- 128.232.0.19 16800s
AAAA AAAA records
- 2a05:b400:110::d:a0 21600s
TXT TXT records
- 21600s
- IP alias for primary NS. Not its server host address 21600s
- *ONLY* to be used for external lookups. 21600s
- DO NOT CHANGE without telling hostmaster for cam.ac.uk 21600s
- Must *NOT* be used in resolv.conf 21600s
What each record means
- A and AAAA: the server IP address, in IPv4 and IPv6.
- MX: the servers that receive the domain mail. The number is the priority; the lowest is tried first.
- NS: the name servers, which have the final say over the domain DNS.
- TXT: free text. Mostly used for SPF, DKIM and DMARC, and to verify ownership with third parties.
- TTL: how many seconds the record may be cached before asking again.
Checked 0 seconds ago.