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

This article introduces the relevant knowledge of "how to operate the CentOS7 port". In the course of the operation of the actual case, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

Use the following features under root permissions

1. Add open ports (ports)

> firewall-cmd-zone=public-add-port= port / tcp--permanent

Return success as successful

Meaning of the command:

-- zone # scope

-- add-port= port / tcp # add port in the format: Port / communication protocol ('tcp' |' udp' | 'sctp' |' dccp')

-- permanent # is in effect forever

two。 Restart the firewall:

> systemctl restart firewalld.service

3. View ports that are already open to the public

> firewall-cmd-- list-ports

4. Other related commands

Turn off the firewall:

> systemctl stop firewalld.service

View the port of the listening (Listen)

> netstat-lntp

Check which process the port is occupied by

> netstat-lnp | grep 8080

You can delete the port configuration by:

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

This is the end of the content of "how to operate the CentOS7 Port". Thank you for your reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!

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