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HOW TO PASS THROUGH REVERSE LOOKUP REQUEST IN JUNIPER SSG 140

Posted on 2008-06-19
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Last Modified: 2013-12-04
WE HAVE A JUNIPER FIREWALL AND ONE MAIL SERVER BEHIND THIS. SOME MAIL SERVERS DOING REVERSE LOOKUP TO OUR MAIL SERVER ITS PUBLIC IP IS 195***** AND PRIVATE IP IS 192168 **** .HOW WE  ENABLE E THE REVERSE LOOKUP REQUEST IN JUNIPER FIREWAAL TO THIS MAIL SERVER
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Question by:BINSCO
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fhmc earned 2000 total points
ID: 21827879
You don't.

Your RDNS record is managed by your ISP (99% of the time.)  Contact your ISP and request they define a RDNS record for the IP address your mailserver is using to SEND mail.  Some may argue the RDNS name should match the name your mail server identifies itself with when communication with other mail servers.

It wouldn't do any harm to set up an SPF record while you're at it...  http://www.openspf.org/

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Author Closing Comment

by:BINSCO
ID: 31468677
fhmc:
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Author Comment

by:BINSCO
ID: 21832406
thanks fhmc: i calld up my ISp etisalat and they were working on it. Hopefully  i will come ot from this within a couple of days
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by:fhmc
ID: 21832463
good deal, I'm glad I could help.

Thank you.
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