[Pdns-users] Supporting ALIAS Records with DNSSEC specially with powerDNS-Admin as managment tool
Brian Candler
b.candler at pobox.com
Tue Jul 24 07:05:41 UTC 2018
On 24/07/2018 07:21, Mohamad F. Barham wrote:
> and I Editted powerDNS-Admin to Support ALIAS,
> Now What I want is to make these domains ALIASES
> (bzu.ps,birzeit.edu.ps, birzeit.ps) for this domain (birzeit.edu)
> where shoud I insert the ALIAS records? In which format?
I think you've misunderstood what ALIAS does.
ALIAS does not mirror an entire domain. ALIAS is pseudo
resource-record, which expands to the dynamic lookup of another resource
record.
It's typically used at the apex of a zone, where you might like to
insert a CNAME but you're not allowed to: CNAME cannot exist alongside
any other resource type, including NS and SOA.
; not allowed
@ NS ns1.mydomain.com.
@ NS ns2.mydomain.com.
@ CNAME web1.cloudhost.com.
; solution
@ NS ns1.mydomain.com.
@ NS ns2.mydomain.com.
@ ALIAS web1.cloudhost.com.
When someone looks up an A record for mydomain.com, they will get the A
record(s) for web1.cloudhost.com, which are dynamically looked up (via
the configured resolver) but returned as if they were stored in the
authoritative server.
See: https://doc.powerdns.com/authoritative/guides/alias.html
HTH,
Brian.
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