On 04/06/2021 12:10, Viktor Dukhovni wrote:
> On Fri, Jun 04, 2021 at 10:53:25AM +0300, Kapetanakis Giannis wrote:
> 
>> I want to separate the ldap configuration to be different per domain.
>> I was thinking something like this, but this recursion does not work:
>>
>> The reason is that the ldap search_base might be different per domain (no 
>> common parent) and sometimes on a different ldap server.
>>
>> Is this somehow possible?
> 
> For a modest number of such domains, the solution is:
> 
>     proxy:ldap:domain1.cf, proxy:ldap:domain2.cf, ..., proxy:ldap:domainN.cf
> 
> where "domain<k>.cf" contains:
> 
>     domain = domain<k>.example
>     server = ...
>     search_base = ...
>     query = ...
> 
> As documented, the "domain = " setting will efficiently locally limit
> queries to just the domain in question, without contacting the
> underlying server.  See:
> 
>     http://www.postfix.org/ldap_table.5.html
> 
> Note also that the search base supports "%[1-9]" and "%d" substitution
> strings, so if the server pool is common, and the search base is
> uniformly constructed from the domain names, you can use a single
> table with a domain-dependent search base to support multiple similar
> domains.
> 
> Note, queries must then all be of the form "[email protected]".
> Queries for inputs that are just a domain part (or just a user name)
> will be ignored.
> 

That's it !!!

I saw the domain setting while reading ldap_table(5) but I probably need a 2nd 
coffee :)

I use search_base substitutions for domains on same server but now I now want 
to use a different server.

thanks, I'll try the domain limit.

G

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