For openSUSE Leap 42.1 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/Archiving:Backup:MondoRescue/openSUSE_Leap_42.1/Archiving:Backup:MondoRescue.repo
zypper refresh
zypper install buffer
For openSUSE 13.2 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/Archiving:Backup:MondoRescue/openSUSE_13.2/Archiving:Backup:MondoRescue.repo
zypper refresh
zypper install buffer
For openSUSE 13.1 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/Archiving:Backup:MondoRescue/openSUSE_13.1/Archiving:Backup:MondoRescue.repo
zypper refresh
zypper install buffer