Solved!! Solution at the end of this post!
Hi every one,
I changed my WS2012R2 to Zentyal 4.2 Development Edition yesterday. I did not migrated users or anything from the old server (except some data but thats probably not important for this problem), its a completly fresh installation. I´m running Ubuntu Linux 14.04.3 (Kernel and CPU: Linux 3.19.0-42-generic on x86_64). It´s a physical machine, it`s the main domain controller and dhcp/dns server. It`s not my firewall, it`s connected to the internet like every other device in my network via my router. I installed the system with the latest CD-Image from the Zentyal-site. I upgraded and installed alll updates available.
Today, I installed Owncloud (onto the preinstalled Apache 2 Server). After the installation, I wanted to use the ldap-backend. I installed it using this https://www.youtube.com/watch?v=lW2iS3l4568. However, Zentyal 4.x doesn`t show the DN User/Password. Does somebody know if this information is stored somewhere accessable on the filesystem or is there an other solution for this prolem?
I want to say thank you in advance for taking time and helping me.
After a night of searching around the web, I found this
https://forum.zentyal.org/index.php?topic=22559.0.
The path to the file, where the password is stored, is: "/etc/postfix/groupaliases.cf".
In my case, the file was only readable as a superuser, so you either have to open it with
sudo nano /etc/postfix/groupaliases.cf
or you can start your filemanager as a superuser
sudo gksu pcmanfm
if you prefer the graphical way.