Suresh Ramasubramanian wrote:
>>I will be attempting to setup a LDAP lookup shortly at work connecting to
>>a Exchange 5.5 system to perform address validation for a domain.
>
> Tabor J Wells posted at least one config that does just that ...
>
> Search the exim-users archives.
Yes, but OP's question was whether the Exim LDAP would /cache/ Exim LDAP
lookups. Client LDAP caching is *banned* in recent LDAPv3
implementations. Postfix has cut out all client LDAP caching in recent
versions. I can't / won't read C source code, so don't know what Exim 4
does. Looked in spec.txt but couldn't find anything about LDAP caching.
With Openldap 2.1 latest versions and BDB 4.1, the server caches, but
what G*d awful Microsoft AD does I wouldn't know. I think Exim, in
common with many clients, re-uses client connects - "remembers" them for
a certain time. Certainly lookups after the first lookup, which costs an
appreciable lookup time, happen instantaneously, for a given period of
time (but perhaps that's my local BDB 4.1 doing the caching). Perhaps
this would be enough for OP to convince his Windows people to *try*, at
any rate.
--Tonni
--
Tony Earnshaw
Millom kaksar eg litet kann trivast, millom jamningar helst er eg nøgd
http://www.billy.demon.nl
Mail: tonni@???
