ping

separate ping utility from iputils-s20151218.tar.gz which site http://www.skbuff.net/iputils/

lib dependency

sudo apt-get install libcap-dev

make

make

If you are not root, like this:

xxx@xxx-pc:~/Documents/ping$ ./ping www.baidu.com
ping: icmp open socket: Permission denied

get permission

chmod u+s ping
sudo chmod u+s ping