Re: fun with aliases

["Kurt D. Zeilenga" <Kurt@OpenLDAP.org>]

Aliases in OpenLDAP are experimental.  Deref in finding should
work fine.  Deref in searching only supports return of aliased
object, not continuation of the search into the based starting
at the aliased object.

At 08:36 AM 2001-08-24, Sebastian Dietzold wrote:

>Hi There,
>
>We have a problem with understanding that alias-stuff. I hope, anybody can
>help me with that.
>Ok, the story is:
>
>there is this structur on ldap://fink.imise.uni-leipzig.de/o=org,c=de
>
>                     ou=unit,o=org,c=de (BaseDN of the Searches)
>           cn=alias1,ou=unit,o=org,c=de (An Alias to cn=me,ou=People,o=org,c=de)
>          ou=subunit,ou=unit,o=org,c=de (a sub-unit)
>cn=alias2,ou=subunit,ou=unit,o=org,c=de (An alias to cn=you,ou=People,o=org,c=de)
>
>i perform these commands to test aliasing:
>
>> ldapsearch -h fink -b "ou=unit,o=org,c=de" -LLL -a never dn
>dn: ou=unit,o=org, c=de
>dn: ou=subunit,ou=unit,o=org, c=de
>dn: cn=alias1,ou=unit,o=org, c=de
>dn: cn=alias2,ou=subunit,ou=unit,o=org, c=de
>
>ok, its looks like ok
>
>> ldapsearch -h fink -b "ou=unit,o=org,c=de" -LLL -a always dn
>dn: ou=unit,o=org, c=de
>dn: ou=subunit,ou=unit,o=org, c=de
>dn: cn=me,ou=People,o=org, c=de
>dn: cn=you,ou=People,o=org, c=de
>
>fine, alias is a cool thing ...
>
>> ldapsearch -h fink -b "ou=unit,o=org,c=de" -LLL -s one -a find dn
>dn: ou=subunit,ou=unit,o=org, c=de
>dn: cn=alias1,ou=unit,o=org, c=de
>
>What is this? 2 output-Elements are ok, because the the scope is "one"
>but the alias is not solved! ok, maybe it is the wrong -a option:
>
>> ldapsearch -h fink -b "ou=unit,o=org,c=de" -LLL -s one -a search dn
>dn: ou=subunit,ou=unit,o=org, c=de
>
>?? either the alias not the solved object? ok, i test a -a always:
>
>> ldapsearch -h fink -b "ou=unit,o=org,c=de" -LLL -s one -a always dn
>dn: ou=subunit,ou=unit,o=org, c=de
>
>help, where are my aliases? ok, i try a -a never
>
>> ldapsearch -h fink -b "ou=unit,o=org,c=de" -LLL -s one -a never dn
>dn: ou=subunit,ou=unit,o=org, c=de
>dn: cn=alias1,ou=unit,o=org, c=de
>
>Huh, here they are. But why i can not solve them with scope-level one?
>
>maybe i must use scope-level sub for solving? but how can i query only the
>objects direct under ou=unit?
>
>> ldapsearch -h fink -b "ou=unit,o=org,c=de" -LLL -s one -a never "(objectClass=alias)" dn
>dn: cn=alias1,ou=unit,o=org, c=de
>
>OK, and the final question: How can i solve this selection?
>
>
>long text, hope there is a master out there who can help me.
>of course you can view the entry on
>ldap://fink.imise.uni-leipzig.de/o=org,c=de
>
>
>
>bye
>
>   Sebastian Dietzold
>
>---
>Sebastian Dietzold - phone: +49-341-97-16114 - fax: +49-341-97-16109
>Institute  for  Medical  Informatics,  Statistics  and  Epidemiology
>University  of  Leipzig  -  Liebigstr. 27 - 04103  Leipzig,  Germany