Thanks MacTroll,
as I wrote: I know about /etc/certificates (and /etc/openldap). But what I change there does not show up in Server Admin and the article you point me to is interesting, but it does not tell me anything about that. Somehow, I can have 8 different certificates in the 10.6-format in /etc/certificates, but for each domain only one shows up in SA.
For the time being I have given up about a decently signed certificate for my OD domain. GoDaddy is cheap, but hoses my OD access and I have no idea how and I can’t mess with SA if I don’t know how to reset it to a working situation from a backup.
G