There seems to be a bug in the process of joining a Backup Directory node for UCS 5.0
Failed to get copied via scp:
/etc/ldap.secrets
/etc/ldap-backup.secrets
Failed to run:
ucs-sss.xxx.xxx/simplesamlphp/saml//idp/metadata.php
suexec error: uid/gid mismatch
/var/www/saml owned by www-data:www-data
Solutions:
chmod +r /etc/ldap.secrets
chmod +r /etc/ldap-backup.secrets
chown samlcgi:samlcgi -R /var/www/saml