RFC 2052:A DNS RR for specifying the location of s...
RFC-Ref

TTL


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... Service.Proto.Name TTL Class SRV Priority Weight Port Target (There is an example near the end of this document.) ...
... shows this clearly. TTL Standard DNS meaning. ...


... RR(s). (This happens quite often when the A RR has shorter TTL than the SRV or NS ...



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