The following column centos Getting Started Tutorial will introduce to you how to permanently turn off the firewall in centOS7. I hope it will be helpful to friends in need!
Check the firewall status: systemctl status firewalld.service
Green running indicates that the firewall is on
Execute shutdown Command: systemctl stop firewalld.service
Execute the command to view the firewall again: systemctl status firewalld.service
Execute the command to disable the firewall auto-start at boot: systemctl disable firewalld.service
Complete
systemctl start firewalld.service
systemctl enable firewalld.service
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