Univention Corporate Server - Extended domain services documentation# 1. Integration of Ubuntu clients into a UCS domain 1.1. Integration into the LDAP directory and the SSL certificate authority 1.2. Configuration of the System Security Services Daemon (SSSD) 1.3. Configuring user logins 1.4. Kerberos integration 1.5. Limitations of the Ubuntu domain integration 1.6. Additional references 2. Integration of Linux/Unix systems into a UCS domain 2.1. Managing the systems in the Univention Management Console 2.2. Configuration of the name resolution 2.3. Configuration of the time server 2.4. Access to user and group information of the UCS domain 2.5. Integrating into Kerberos 2.6. Accessing a UCS print server 3. Advanced SSL certificate handling 3.1. Managing additional certificates with univention-certificate 3.1.1. Storage of the certificates 3.1.2. Displaying the certificates 3.1.3. Checking the validity of a certificate 3.1.4. Revoking a certificate 3.1.5. Creating a certificate 3.2. Signing of certificate signing requests by the UCS certificate authority