TCP,UDP,ICMP out is world ok
TCP,UDP in 1024+ is world ok
ICMP in is world ok
TCP in ftp, ftp-data, ssh, finger is world ok
TCP,UDP in http/https, pop3/pop3s, auth, uucp, sqlserv, nntp,
imap/imaps, talk, ntalk is world ok
TCP in smb/nmb 137+2 is local ok
