I have an internal DNS server as primary and and external as secondary. The problem I'm having is I have an Exchange Server with an internal and external address. The external DNS will not do a reverse lookup of the internal DNS. How can I fix that internally?
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Problems with DNS
- Thread starter MarkITMan
- Start date
Guest_imported
New member
- Jan 1, 1970
- 0
You can force an entry in the LMHOSTS file to resolve to IP correctly.
ShackDaddy
MIS
LMHOSTS has nothing to do with this. You need to create a reverse lookup zone on your external DNS server and manually create an appropriate PTR record for the Exchange server's external address.
Or create a new reverse lookup zone manually on the internal DNS, populate it as above, and have the external DNS secondary it.
ShackDaddy
Or create a new reverse lookup zone manually on the internal DNS, populate it as above, and have the external DNS secondary it.
ShackDaddy
- Thread starter
- #4
A reverse lookup zone was created on the external DNS server and a PTR record for the Exchange server without any luck in sending out e-mail. Funny thing is I can e-mail back and forth to Microsoft tech all day, but not anywhere else. Makes me say hmmmmm.
ShackDaddy
MIS
Probably because whichever mail server you are trying to contact is querying your internal DNS server for the PTR, not your external server. Make your internal DNS server a secondary for the reverse lookup zone that you are hosting on your external server.
Finally, are you sure this problem is tied to your lack of a reverse lookup?
Finally, are you sure this problem is tied to your lack of a reverse lookup?
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