1.netstat -tunlp | grep ****
-t--tcp -u--udp -l--listening -n --numeric -p--program -a--all
2.lsof -i :port
list open file -i This option selects the listing of files any of whose Internet address matches the address specified in i.
原文：http://www.cnblogs.com/beautifulfish/p/5249511.html