Shulou(Shulou.com)06/03 Report--

Method 1: command line mode

1. Open port command:

/ sbin/iptables-I INPUT-p tcp-- dport 8080-j` ACCEPT

2. Save:

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

3. Restart the service:

/ etc/init.d/iptables restart

4. Check whether the port is open:

/ sbin/iptables-L-n

Method 2: edit / etc/sysconfig/iptables file directly

1. Edit / etc/sysconfig/iptables file

Vi / etc/sysconfig/iptables

Add the following and save:

-A RH-Firewall-1-INPUT-m state-- state NEW-m tcp-p tcp-- dport 8080-j ACCEPT

2. Restart the service:

/ etc/init.d/iptables restart

3. Check whether the port is open

/ sbin/iptables-L-n

Use the following command to query whether there is a process daemon on the port. Grep corresponds to the port. For example, 80 is the port number.

Netstat-nalp | grep 80

These are the details of how to open designated ports in linux. Please pay attention to other related articles for more information.

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