Hi, Mac ports has a feature when installing a package called variants. It will show additional features that can be added on when installing. Is there a same feature with yum? $ port variants wireshark wireshark has the variants: darwin_6 darwin_7 darwin_8 darwin_9 adns ipv6 net_snmp pcre no_ssl no_x11 then you type $ port install wireshark +darwin_8 Erik