NoteBook:~$ ping 127.0.0.1
ping: socktype: SOCK_RAW
ping: socket: 不允许的操作
ping: => missing cap_net_raw+p capability or setuid?
NoteBook:~$ which ping
/usr/bin/ping
NoteBook:~$ sudo setcap cap_net_raw+ep /bin/ping
请输入密码:
sudo: 需要密码
NoteBook:~$ sudo setcap cap_net_raw+ep /usr/bin/ping
请输入密码:
验证成功
Failed to set capabilities on file '/usr/bin/ping': Read-only file system