Check the Linux firewall status error Unit iptables.service could not be found

Check firewall status under linux

[root@localhost src]# service iptables status
Redirecting to /bin/systemctl status  iptables.service
Unit iptables.service could not be found.

Tip Redirecting to / bin / systemctl status iptables.service Unit iptables.service could not be found.

In CentOS 7 or RHEL 7 firewall managed by firewalld,

If you want to add a range of exceptions such as port 1000-2000
command syntax is as follows: Enable Zone port and protocol combination
firewall-cmd [--zone=<zone>] --add-port=<port>[-<port>]/<protocol> [--timeout=<seconds>]
This will enable a combination of ports and protocols. Port may be a single port <port> or a port range <port> - <port>. Protocol can be tcp or udp.
actual command follows:

Add to

firewall-cmd --zone = public --add-port = 8088 / tcp --permanent (--permanent permanent, this parameter is not restarted after the failure)

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

Reload
firewall-cmd --reload
See
firewall-cmd --zone=public --query-port=80/tcp
Delete
firewall-cmd --zone=public --remove-port=80/tcp --permanent

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