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10.09.2008 at 08:56AM PDT, ID: 23801369
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Problems Connecting To Active Directory Using LDAP

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7.0
Zones:

Lightweight Directory Access Protocol (LDAP), SBS Small Business Server

Tags:

Microsoft, SBS 2003
Hello. I am trying to have our Barracuda Spam Firewall 300 verify incoming email addresses against Active Directory using LDAP. I can telnet and login just fine, so I am sure that everything is running correctly. The Barracuda requires the following information:

LDAP Server: 10.0.0.2 (SBS 2003)
LDAP Port: 389 (which I can telnet to)
BIND DN: User (I have created a user within AD that has only Domain User rights; I can telnet fine with this User).
BIND Password: user's password
LDAP Filter: using the default ((|(proxyaddress=smtp:${recipient_email})(mail=${recipient_email}))
LDAP Search Base: default (${defaultNamingContext}
LDAP UID: deafult for AD: sAMAccountName
Valid Email For Testing: my valid email address

When I try to test this I receive the following error:

could not set open file limit to 8192: Operation not permitted
lookup order: fb
listening on localhost/59447
answering client connection request from 127.0.0.1/59448
received from 127.0.0.1/59448: GET user@domain.com
email address: user@domain.com
telling 127.0.0.1/59448: 200 550 DB verification agent failed%3A
received from 127.0.0.1/59448: QUIT
hanging up on client 127.0.0.1/59448
exiting on SIGTERM

I am new to LDAP and have no clue as to where to go from here. I have posted this to the Barracuda forums, but have received no response as of yet.

Thank you.
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Answered By: ctsuhako
Expert Since: 02/10/2006
Accepted Solutions: 1
ctsuhako has been an Expert for 2 years 11 months, during which he has posted 46 comments and answered 1 question. ctsuhako is just one of 448 experts in the Lightweight Directory Access Protocol (LDAP) Zone. 2 experts collaborated on this answer, which was graded an "A" by the asker.
 
 
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