Drowning in a sea of ignorance as to versions of openldap

[Edwin Culp <eculp@EnContacto.Net>]

I have been learning/testing openldap with version 1.2.11 on three servers in
different physical locations.  I have tested with commandline searches, 
modifications, etc.  I have tested applications such as proftpd, courier, 
addressbooks, even netscape directories and have had no real problems.
I have kept schema checking on during all this and have had to copy schemas
that were for 2.0.?? because I wasn't able to find - didn't spend a lot of
time looking - any for 1.2.11 and they have all worked, as far as I can tell.  (If you have the above applications or similar working in 2.0.11
any tips will be appreciated.)

I have been reading the list and the recommendations for 2.0.11 and schema
availability so I changed one machine over to 2.0.11 and it works fine until
I try to access the other two machines with a simple ldapsearch.  I can 
access the 2.0.11 from 1.2.11 with no problem.  Netscape directory still
works.  I can't even get courier to compile with the .2 libraries, I haven't
been able to get mod_ldap.c in proftpd to work either.

I need some suggestions from folks who have more experience than I, probably
99% of you.

   o- Are the problems getting 2.0.11 to interface with imap, pop, smtp, 
      apache, ftp, and friend too complex to make it worthwhile for 
      for someone who wants to get a little work done as well as learn?

   o- Is just copying schemas to slapd.oc.conf in 1.2.11, as posixGroup 
      added below, acceptable or will it haunt me later when I move this
      to production?  I really don't have much confidence because I don't
      see how it can possibly know what each variable is for searching,
      indexing, comparing, etc.  If there is correct way, please point
      me in the right direction.
      <cut and past from my slapd.oc.conf>
              objectclass posixGroup
                  requires
                     objectClass,
                     cn,
                     gidNumber
               allows
                     userPassword,
                     memberUid,
                     description 
        </cut>

    o- Suggestion as to why the following from 2.0.11 to 1.2.11 fails
       and that will maybe help me understand why a simple php bind
       also fails on 2.0.11 but works flawlessly with 1.2.11 without x.
       I have also tried -H rather than -h and ' rather than ".

# ldapsearch -h server-1.2.11.domain.com -L -x -b "dc=domain, dc=com" "(objectclass=*)"
ldap_bind: Protocol error
        additional info: version not supported

Thanks for you help and suggestions.

ed
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