4

What is a CNAME and what are some of its benefits? For example, how does it differ from A & AAAA records?

2
  • 1
    Sorry, procotols above the transport layer are explicitly off-topic here, see the help center. Also, your question seriously lacks research. – Zac67 Apr 4 at 10:04
  • 2
    In short, a CNAME is an alias for an existing A or AAAA record. For example, if you have an A record for sftp.domain.com pointing to 1.1.1.1 and you also want ftp.domain.com to point to 1.1.1.1, but don't want to have 2 records to change down the road, you could create ftp.domain.com as a CNAME instead, and it would point to sftp.domain.com rather pointing to a host IP address itself. Then, if you decide you want sftp.domain.com to point to 2.2.2.2 instead of 1.1.1.1, you just change that A record and the CNAME will automatically also point to the same destination. – Jesse P. Apr 4 at 13:42

Browse other questions tagged or ask your own question.