For openSUSE 13.1 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/server:Kolab:3.0/openSUSE_13.1/server:Kolab:3.0.repo
zypper refresh
zypper install 389-ds-base
For openSUSE 12.3 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/server:Kolab:3.0/openSUSE_12.3/server:Kolab:3.0.repo
zypper refresh
zypper install 389-ds-base
For openSUSE 12.2 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/server:Kolab:3.0/openSUSE_12.2/server:Kolab:3.0.repo
zypper refresh
zypper install 389-ds-base