hping -S -p 80 www.perlmonks.org
HPING www.perlmonks.org (eth0 209.197.123.153): S set, 40 headers + 0 data bytes
len=46 ip=209.197.123.153 flags=SA seq=0 ttl=49 id=34387 win=65535 rtt=113.7 ms