Centos iptables防火墙添加IP白名单,指定IP可访问端口
vi /etc/sysconfig/iptables
以下为我虚拟机的防火墙为例(Centos 7)
# sample configuration for iptables service# you can edit this manually or use system-config-firewall# please do not ask us to add additional ports/services to this default configuration*filter:INPUT ACCEPT [0:0]:FORWARD ACCEPT [0:0]:OUTPUT ACCEPT [0:0]-N whitelist-A whitelist -s xx.xx.xx.xx/32 -j ACCEPT##添加IP到白名单-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT-A INPUT -p icmp -j ACCEPT-A INPUT -i lo -j ACCEPT-A INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j whitelist##whitelist调用白名单IP列表,22端口只允许白名单IP使用-A INPUT -p tcp -m state --state NEW -m tcp --dport 80 -j ACCEPT##无调用白名单,外网可访问-A INPUT -p tcp -m state --state NEW -m tcp --dport 443 -j ACCEPT
-A INPUT -j REJECT --reject-with icmp-host-prohibited-A FORWARD -j REJECT --reject-with icmp-host-prohibitedCOMMIT~
:wq 保存,重启防火墙生效
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