Quote:robert @ linux-BWWR: ~> host-t revhost.info NS
This is
not correctly written. The syntax is (type is optional, defaults to "A" and "server_to_contact" is also optional, defaults to whatever server you have configured for this mahcine):
Code:
host [-t <type_of_record>] <hostname> [server_to_contact]
Therefore, you asked for the host "NS", record of type "revhost.info", to your usual DNS server. The corrected command outputs results as expected:
Code:
Bender:~ marc$ host -t NS revhost.info
revhost.info name server ns2.revhost.info.
revhost.info name server ns1.revhost.info.
Please, read some "introduction to how the dns system works" tutorial or something, becuse you're missing essential concepts necessary to debug this kind of problems.