[horde] Horde secure ldap intermittently fails on remote server.

[Daniel Carrasco Marín]

Hi, first of all i'm sorry for my english.

I've created a VM on a dedicated server to allow users to connect from 
everywhere, and i've installed Horde on it.
To authenticate the users i'm using a Samba4 LDAP server with SSL 
support (on my work place), and is connected with horde through an VPN 
connection.
All is installed, configured and working perfect, but when I try to use 
SSL in ldap connection then horde start to fail intermittently.

I've configured another local server with horde and works fine with 
ldaps then i don't know what can be the problem.

The error shows:


  Se ha producido un error irreparable


      Unable to start TLS and unable to fetch rootDSE entry to see if
      TLS is supported: Can't contact LDAP server Parameters: Base:
      Filter: (objectClass=*) Scope: base

  1. Horde_Registry::appInit() /server/www/horde/admin/config/index.php:19
  2. Horde_Registry->pushApp() /usr/share/php/Horde/Registry.php:299
  3. Horde_Registry->checkExistingAuth() /usr/share/php/Horde/Registry.php:1547
  4. Horde_Core_Factory_Auth->create() /usr/share/php/Horde/Registry.php:2641
  5. Horde_Core_Factory_Auth->_create() /usr/share/php/Horde/Core/Factory/Auth.php:54
  6. Horde_Core_Factory_Ldap->create() /usr/share/php/Horde/Core/Factory/Auth.php:159
  7. Horde_Ldap->__construct() /usr/share/php/Horde/Core/Factory/Ldap.php:75
  8. Horde_Ldap->bind() /usr/share/php/Horde/Ldap.php:144
  9. Horde_Ldap->_connect() /usr/share/php/Horde/Ldap.php:232
10. Horde_Ldap->startTLS() /usr/share/php/Horde/Ldap.php:338


I've omited the details (too long).

¿Someone knows something about this?.

Another problem is that I can't use the 636 port for secure connections. 
Horde fails if i try to use that port instead the normal ldap port (389).

Thanks!!

PDTA: I've another VM on same remote machine using ldaps too and works 
fine (owncloud). Even using the 636 port.