Manage ActiveDirectory with Linux-Box
 

Is there any Softwar to manage an Active Directory with a Linux Box? Even if the AD is running on a Windows System?

I know its a strange Question but a Client of mine wants to have this configuration...

By manage, do you just mean object/attribute management?

If so, you could use something like PHPLDAPAdmin.

I mean the complete Domain Management like

- adding/editing Users
- adding/editing Groups
- setting Passwords/home Directories
- setting up Domain Trusts
- setting up Domain Trees

PHPLDAPAdmin can do the first three.

I'm not sure what a domain tree is. If it's the directory structure, then PHPLDAPAdmin can do that too.

As far as managing domain trusts...because you can make a linux device part of the kerberos realm/domain that is managed by AD, then I would bet that you could do it, though I don't know of any GUI tool to do so.

Are your clients not looking at rdesktop and tsclient to connect to Terminal Services on the WinServer?

No, there is no need for a terminal Server.

btw, my pdpLDAPadmin says that the LDAP-Server (Win 2003 EE, Active Directory) could not be found. Is there something i have to change at my Server?

Did you define the location of your domain controller (LDAP Server) within the phpLDAPAdmin configuration? You'll also need to configure a bind object in the phpLDAPadmin utility.