Date: Tue, 20 Sep 2011 09:04:21 +0100 From: Matthew Seaman <m.seaman@infracaninophile.co.uk> To: Rafael NAVAZA <rnavaza@hotmail.com> Cc: freebsd-questions@freebsd.org Subject: Re: OpenLDAP + CARP Message-ID: <4E784905.1080007@infracaninophile.co.uk> In-Reply-To: <DUB102-W60312A9A530D84FC783777BE0B0@phx.gbl> References: <DUB102-W60312A9A530D84FC783777BE0B0@phx.gbl>
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On 19/09/2011 15:54, Rafael NAVAZA wrote:
> Is there a way to setup an OpenLDAP HA cluster (intersite multimaster) with CARP on FreeBSD ?
Hmmm... So long as both the LDAP servers are on the same network
segment, and so long as they have separate addresses for their
replication channel, then I can't see why that wouldn't work.
However, LDAP, by its nature has a failover capability built in. You
can just list several LDAP servers in your ldap.conf and each will be
tried in turn until you get an answer. Or put a comma separated list of
several servers into a ldap:/// or ldaps:/// style URI.
There's also a way you can use SRV records with LDAP -- that gives you
weighted load distribution over a number of servers. See RFC 3088.
Note that not all LDAP clients support this, and its still only an
experimental service.
Cheers,
Matthew
--
Dr Matthew J Seaman MA, D.Phil. 7 Priory Courtyard
Flat 3
PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate
JID: matthew@infracaninophile.co.uk Kent, CT11 9PW
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