To find open port, list port, port, port allow access in Linux

SELinux is a feature that may be turned on certain servers to restrict the access for certain ports. In order to  access, you need to open those ports.

You can check the status of SELinux using the following command.

 [root@tester ~]# sestatus
SELinux status:                 disabled

To list all the tcp/udp open ports you can use the semanage command.

semanage port -l


To check the specific port is opened

semanage port -l | grep 7080


To open the specific port 


semanage port -a -t http_port_t -p tcp 8085