[PATCH] Add an ldapoption to disable chasing LDAP referrals
Hey All,
This patch request grew from this post (of mine) to pgsql-general:
The patch adds another available LDAP option (ldapnochaseref) for search+bind mode in the pg_hba.conf fil. If set to 1 (0 is default) then it performs a ldap_set_option which disables chasing of any LDAP references which are returned as part of the search LDIF.
I can think of two use cases for this:
- (the case which spawned my email) A valid search is performed, but for some reason a "ref:" with a non responsive LDAP server is returned as well, which causes the authentication to time out (could be intermittent if DNS round robin or similar is used and some of the LDAP servers are not functioning / a packet dropping firewall is in the way).
- (a case I found when testing with AD) A valid search is performed and 6 "ref:" entries are returned, which all must be chased before authentication can succeed. Setting ldapnochaseref speeds up authentication with no negative cost (assuming you understand your LDAP schema).
I think it's work noting that this setting seems to be the default for ldapsearch on Linux these days.
Hopefully I found all the documentation that I was meant to update, let me know if not though.
Cheers,
James Sewell
PostgreSQL Team Lead / Solutions Architect
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