Para openSUSE Tumbleweed execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/openSUSE:infrastructure:dns/openSUSE_Tumbleweed/openSUSE:infrastructure:dns.repo
zypper refresh
zypper install ca-certificates
Para 16.0 execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/openSUSE:infrastructure:dns/16.0/openSUSE:infrastructure:dns.repo
zypper refresh
zypper install ca-certificates
Para 15.7 execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/openSUSE:infrastructure:dns/15.7/openSUSE:infrastructure:dns.repo
zypper refresh
zypper install ca-certificates
Para 15.6 execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/openSUSE:infrastructure:dns/15.6/openSUSE:infrastructure:dns.repo
zypper refresh
zypper install ca-certificates