A recent changes made in our campus ldap service has caused us some 
difficulty in configuring ldap for dspace.

Our instance of dspace uses ldap to connect to the campus active directory 
instance to authenticate users.  The ldap active directory server has 
recently moved to four servers with a gateway to load balance and provide 
fail-over.  Our ldap domain is ads.uwaterloo.ca, but the hostname of the 
gateway is ldap.ads.uwaterloo.ca.

In the wake of this change we changed the configuration file for dspace 
to:

ldap.provider_url = ldap://ldap.ads.uwaterloo.ca

but this broke our authentication.  As best we can determine, this change 
finds the gateway but tries to bind the user as 
[EMAIL PROTECTED] instead of [EMAIL PROTECTED]  (We are 
not sure that this is the underlying behavior, but we get an authorization 
error in the dspace logs with this configuration.)

ldap.provider_url = ldap://ads.uwaterloo.ca

works and binds correctly, but it points to one of the four servers, so we 
lose the better availability provided by the gateway.

Is there anyway to be more fine grained with ldap configuration for 
dspace?  Can we point to the ldap.ads.uwaterloo.ca gateway but bind as 
[EMAIL PROTECTED]

Any help or pointers to the necessary info would be greatly appreciated.

Chris Gray
Library Systems
University of Waterloo Library



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