LDAP referrals

Hello All,

Is there a way to disable chasing LDAP referrals in PostgreSQL?

Take the following LDAP config options from pg_hba.conf

ldapserver=server.org.com
ldapbinddn="cn=bindUser,cn=users,dc=core,dc=dir,dc=org,dc=com"
ldapbindpasswd="bindPass" ldapbasedn="dc=core,dc=dir,dc=org,dc=com"
ldapsearchattribute="sAMAccountName"

From ldapsearch I can do the following search:

ldapsearch -x -h server.org.com \
-D "cn=bindUser,cn=users,dc=core,dc=dir,dc=org,dc=com" -W \
-b "dc=core,dc=dir,dc=org,dc=com" \
"sAMAccountName=searchUser" sAMAccountName

Which gives me the following response:

# extended LDIF
#
# LDAPv3
# base <dc=core,dc=dir,dc=org,dc=com> with scope subtree
# filter: sAMAccountName=searchUser
# requesting: sAMAccountName
#

# d248265, People, eProfile, server.org.com
dn: CN=searchUser,OU=People,OU=eProfile,DC=core,DC=dir,DC=org,DC=com
sAMAccountName: searchUser

# search reference
ref: ldap://otherserver.org.com/CN=Configuration,DC=core,DC=dir,DC=org,DC
=com

# search result
search: 2
result: 0 Success

# numResponses: 3
# numEntries: 1
# numReferences: 1

Which is expected.

If I run psql like so:

psql -U d248265 -h 127.0.0.1 dccn

then it hangs. From a packet capture I've determined that in this time it
is trying to resolve the referral, which is broken and times out.

I can verify this by re-running the above ldapsearch with the -C
option (automatically
chase referrals). This hangs as well.

I know that the real root cause if my broken LDAP server, but is there a
way to disable chasing referrals?

Cheers,
James Sewell

James Sewell
PostgreSQL Team Lead / Solutions Architect
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