How to allow ports to access open ports remotely in linux

How to allow ports to access open ports remotely in linux? Many novices are not very clear about this. In order to help you solve this problem, the following editor will explain it in detail. People with this need can come and learn. I hope you can gain something.

1. Modify the firewall configuration file

# vi / etc/sysconfig/iptables

Wq save exit, restart firewall

Service iptables restart

So that port 6379 can be accessed remotely.

2.linux command open port

Add an open port such as port 80

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

Save Settin

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

Restart the service to take effect

/ etc/init.d/iptables restart

Check whether the open port is in effect.

/ sbin/iptables-L-n

Output the following: Port 80 is open

ACCEPT tcp-0.0.0.0 tcp dpt:80 what is a Linux system Linux is a free-to-use and free-spread UNIX-like operating system, is a POSIX-based multi-user, multi-tasking, multi-threaded and multi-CPU operating system, using Linux to run major Unix tools, applications and network protocols.

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