如何确保防火墙已关闭?
我是Ubuntu的新手。我要关闭防火墙,并确保已关闭防火墙,并要关闭iptables。 iptables: Installed: 1.4.21-1ubuntu1 Candidate: 1.4.21-1ubuntu1 Version table: *** 1.4.21-1ubuntu1 0 500 http://us.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages 100 /var/lib/dpkg/status Chain INPUT (policy ACCEPT) target prot opt source destination Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destinat