An easy method to do port forwarding on CentOS is to use xinetd. This service is usually installed on CentOS by default. In order to port forward with xinetd, you will need to create a configuration file: vim /etc/xinetd.d/smtp_forward Some xinetd port forwarding examples: 1. Forward port 2000 on localhost to remote server on ... Read More...
Latest CentOS Kernel version
CentOS 7.6.1810: 3.10.0-957.21.3