Allow the port through CSF

ollow the below steps to allow CSF through CSF.

Step 1: Open the Terminal or Putty.

Step 2: Connect to the 'server' using SSH.

Step 3: Open the csf config file using the command,

vi /etc/csf/csf.conf

Step 4: Under the heading # Allow incoming TCP ports, there will be a list of port numbers like as displayed below.

TCP_IN = 80,443,22,21, .

Step 5: Add the port number after the final digit.

Step 6: Finally, enter the command

/etc/init.d/csf restart

to restart the 'CSF'.