ubuntu14.04开放端口的方法

root@jbxue:$ sudo ufw enable 
Firewall started and enabled on system startup 
root@jbxue:$ sudo ufw allow 8080 
Rules updated 
root@jbxue:$ sudo ufw allow 8080/tcp 
Rule added 
root@jbxue:$ cat /etc/services | less 
root@jbxue:$ sudo ufw allow webcache 
Rules updated 
root@jbxue:$ sudo ufw status 
Firewall loaded 
 
To Action From 
-- ------ ---- 
8080:tcp ALLOW Anywhere 
8080:udp ALLOW Anywhere 
8080:tcp ALLOW Anywhere