After rejoining a school slave, lots of objects are missing E.g. Students are missing on a educativ slave, or stuff objects are missing on an administrative slave, but the computerobjects are all replicated and useable.
In this case, the system crashed and had to be reinstalled. Maybe there wend something more wrong so the serverobject was deleted and readded manually.
The serverobject was created in the correct place, underneath the chool OU, but the server was not member of the absolutly required groups Dc-Verwaltungsnetz und OUsun-DC-Verwaltungsnetz, bzw. DC-Edukativnetz and OUsun-DC-Edukativnetz
You can put the slave in these groups via udm:
udm computers/domaincontroller_slave modify --dn 'cn=slave,cn=dc,cn=server,cn=computers,ou=sun,dc=schein,dc=me' --append groups="cn=DC-Verwaltungsnetz,cn=ucsschool,cn=groups,dc=schein,dc=me" --append groups="cn=OUsun-DC-Verwaltungsnetz,cn=ucsschool,cn=groups,dc=schein,dc=me"
The reasons for this behaviour are the read restrictions via ldap acls for the slave