Redirecting to / bin / systemctl restart iptables.service / failed to restart iptables.service: Unit Not asked

tags: Operation and maintenance linux iptables

Firewall by firewall in CentOS 7 or RHEL 7 or Fedora is managed by firewalld

Add to

FireWall-cmd --zone = public --Add-port = 80 / tcp --Permanent (--Permanent is permanently effective, there is no failure after the parameter is restarted)

firewall-cmd --zone=public --add-port=1000-2000/tcp --permanent

Reload

firewall-cmd --reload

Check

firewall-cmd --zone=public --query-port=80/tcp

delete

firewall-cmd --zone=public --remove-port=80/tcp --permanent

Open firewall

systemctl start firewalld.service

View the running status

FireWall-cmd --state // running means running

View status:
systemctl status sshd.service

 Start service:
systemctl start sshd.service

 Restart the service:
systemctl restart sshd.service

 Boot start:
systemctl enable sshd.service

Reference blog
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