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DNS  problem

Posted on 2000-03-01
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Last Modified: 2010-04-21
There are 2 email server
Let say there are A (True IP) and B (Virtual IP)

B can send email to A .but A can't send email to B due to Virtual IP of B
SO I hope to config the DNS so that if A send email to B,
However I fogot how to modify   DNS to achieve it?
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Question by:nba
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by:jlevie
ID: 2573311
Is "B" a virtual domain? By "virtual IP" do you mean some system that has an IP alias configured on it?
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by:logout
ID: 2574819
Yes B is also in virtual domain.
My objective is A can't reply email to B Even B in virtual IP or domain
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by:jlevie
ID: 2574889
Who maintains the master dns server for the domain? you or someone else?
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by:logout
ID: 2575056
I maintain the dns .
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by:jlevie
ID: 2581131
Okay, you need to add the zone definition to your named.conf file. It'll look something like:

....
zone "virtual.com" {
        type master;
        file "virtual.zone";
};

You'll need to adjust the domain name and name to the zone file per your installtion. Then you need a zone file that would look something like:

@          IN  SOA         server.real.com. user.real.com. (
               1999072601  ; Serial
               10800       ; Refresh
               3600        ; Retry
               604800      ; Expire
               86400)      ; Minimum

           IN  NS          server.real.com.
           IN  NS          secondary.someplace.com.

virtual.com.          IN  MX  10 server.real.com.

;
;
$ORIGIN      virtual.com.
;
www          IN  A       10.0.0.1

Domain names, email address, and such need to be adjusted for your setup.

Will that do it?
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jlevie earned 200 total points
ID: 2608637
Comment of 3 mar is the answer
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Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

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