Shulou(Shulou.com)06/02 Report--

Centos7's system firewall is firewall messed up here for two days to sum up.

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If it is not installed on your system, use the command to install.

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1#yum install firewalld / / install firewalld Firewall

Start the service

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1# systemctl start firewalld.service

Turn off the firewall

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1# systemctl stop firewalld.service

Power on and start automatically

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1# systemctl enable firewalld.service

Turn off power on brake start

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1# systemctl disable firewalld.service

View statu

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1#systemctl status firewalld

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