George Holbert wrote:
Tim Gustafson wrote:
Hi,
How does the OpenLDAP client library handle multiple A records being returned
for a DNS query for an LDAP server?
OpenLDAP doesn't alter hosts resolution behavior.
As usual, the first address (A record) returned would be used.
That is to say, if "host ldap" returns 1.1.1.1, 2.2.2.2 and 3.3.3.3, will the
OpenLDAP client library only connect to 1.1.1.1? If a connection to 1.1.1.1 fails, will
it try 2.2.2.2 and then 3.3.3.3?
It will not try 2.2.2.2 or 3.3.3.3 automatically if a connection attempt
to 1.1.1.1 fails.
It might happen to try them on the next connection, if the host needs to
resolve the LDAP server's name again, and either 2.2.2.2 or 3.3.3.3 is
the first A record returned.
False. If multiple A records are returned, if the first address fails it will
continue on to the next, stopping when something succeeds or it runs out of
alternatives.
--
-- Howard Chu
CTO, Symas Corp. http://www.symas.com
Director, Highland Sun http://highlandsun.com/hyc/
Chief Architect, OpenLDAP http://www.openldap.org/project/
