防火墙设置(CentOS6.8)
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查看防火墙状态
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$>
service iptables status
【防火墙状态(开启)】
Table: filter
Chain INPUT (policy ACCEPT)
num target prot opt source destination
1 ACCEPT all – 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED
2 ACCEPT icmp – 0.0.0.0/0 0.0.0.0/0
3 ACCEPT all – 0.0.0.0/0 0.0.0.0/0
4 ACCEPT tcp – 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:22
5 REJECT all – 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibitedChain FORWARD (policy ACCEPT)
num target prot opt source destination
1 REJECT all – 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibitedChain OUTPUT (policy ACCEPT)
num target prot opt source destination
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临时关闭防火墙
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$>
service iptables stop
iptables: Setting chains to policy ACCEPT: filter [ OK ]
iptables: Flushing firewall rules: [ OK ]
iptables: Unloading modules: [ OK ] -
$>
service iptables status
防火墙状态(关闭)
iptables: Firewall is not running.
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查看防火墙开机启动状态
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$>
chkconfig iptables --list
iptables 0:关闭 1:关闭 2:启用 3:启用 4:启用 5:启用 6:关闭
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关闭开机启动防火墙【root权限】
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$>
chkconfig iptables off
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$>
chkconfig iptables --list
iptables 0:关闭 1:关闭 2:关闭 3:关闭 4:关闭 5:关闭 6:关闭
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开启开机启动防火墙【root权限】
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$>
chkconfig iptables on
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$>
chkconfig iptables --list
iptables 0:关闭 1:关闭 2:启用 3:启用 4:启用 5:启用 6:关闭
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