how to get secondary/slave NS ?

[riavviato riavviato]

Hallo,

I'm trying to check secondary/slave name servers given a certain domain (even if they are in error status); I''m using dns.resolve to check the Name Servers but I can only retrieve primary NS.

Any idea how to check secondary/slave NS?

thanks in advance

R

[Bob Halley]

First get the list of nameservers for your domain by using the resolver to do an NS query.

For each nameserver:

    Get the nameservers A (or AAAA) records by using the resolver to do an A (or AAAA) query.

    Using one of the addresses returned, directly query the nameserver with dns.query.udp(), using whatever query is your check for goodness.

    Check that the response is ok.