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quattroginger's avatar
quattroginger
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Sep 25, 2017

DNS query problem

i am getting a incorrect dns response for some reason. i have 2 devices, lets say ns1 and ns2. ns1 and ns2 are only queried from within when our internal servers do not have an entry. i have a stealth master server configured on my f5 as name server. this contains our records for forward zone. i have a virtual server configured on ns1 and a virtual server configured with different IP on ns2 for webserver1.domain.com i change entry on stealth's forward zone record for webserver1.domain.com from IP of ns1 to ns2's. dnsxdump shows name matching IP of server on ns2 as expected. queries from my system still show ip resolution of ns1 server even though the record's TTL previously created on the stealth is long past. Dig @ns1 listener or ns2 for webserver1.domain.com answer with A record showing ns1 virtual server IP. it also does not contain authority or additional section. zone runner resource records do not contain an entry on ns1 or ns2 for webserver1.domain.com with IP for ns2's virtual server

 

i feel like i am missing something simple here but not sure what else to check.

 

3 Replies

  • i found that i was missing the resource record from ns2 because the member fell out of the wide ip pool. i still can't figure out why my queries are reporting the wrong entry.

     

  • this ended up being caused by duplicate A record on internal server someone created with site 1 IP.