Version 2.0.0 Page 49
blocked by a firewall.
Resolution: These ports are used by the MFP to
communicate with the LDAP Server and must be
open in order for LDAP lookups to work.
Cause: Reverse DNS lookup are disabled on the
network.
Resolution: The MFP uses reverse DNS lookups to
verify IP addresses. If these lookups are disabled
on the network, check the Disable Reverse DNS
Lookups option in the PKI/AD Authentication
solution settings.
Cause: The LDAP search base is too broad in scope
Resolution: Narrow the LDAP search base to the
lowest possible scope that will include all
necessary users.
LDAP lookups (searching address
book, getting user’s email address,
getting user’s home directory) fail
almost immediately
Cause: The user’s credentials are being used to
connect to the LDAP server but IP address for the
LDAP server was used.
Resolution: When the user’s credentials are used to
connect to the LDAP server, the hostname of the
LDAP server must be used instead of the IP
address.
Cause: Port 389 is being used but the LDAP Server
requires SSL to be used.
Resolution: Change the LDAP Port to 636; check the
Use SSL/TLS checkbox; change the LDAP
Certificate Verification to “Never”.
Cause: The LDAP search base is incorrect.
Resolution: Correct the LDAP search base to be the
lowest possible scope that will include all
necessary users.
Cause: The LDAP attribute being searched for is not
correct.
Resolution: Verify the LDAP attributes for email
addresses and/or the user’s home directory is
correct.
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