How to allow remote access to open ports in Linux

1. Modify the firewall configuration file

# vi /etc/sysconfig/iptables 

wqSave and exit, restart the firewall

service iptables restart

This way port 6379 can be accessed remotely

2. Linux command to open port

Add an open port such as port 80

 # sbin/iptables -I INPUT -p tcp --dport 80 -j ACCEPT

Save settings

/etc/rc.d/init.d/iptables save

Restart the service to take effect

/etc/init.d/iptables restart

Check whether the open port is effective

/sbin/iptables -L -n

Output the following: Port 80 is open

ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:80

The above article on how to allow remote access to open ports in Linux is all I have to share with you. I hope it can give you a reference, and I also hope that you will support 123WORDPRESS.COM.