Question

How to listen to a certain port

Hi. I have an Apache Server with a LAMP Stack running on Ubuntu 14.04.

It’s all set up well, but I also need to monitor messages coming in from Port 22. I’ve opened the port using ufw, but I don’t know how to listen to it.

Any help will be very much appreciated.


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Port 22 is generally used for SSH traffic. If you configure another application besides the SSH daemon to listen on that port, make sure to configure SSH to listen on a different port first. If not, you may lose access to the server.

If you really want to configure Apache to listen to port 22, you must add or edit a VirtualHost to do so as well as configure a Listen directive. The port that Apache will respond on is configured

Listen 22

<VirtualHost *:22>
    ServerAdmin webmaster@localhost
    DocumentRoot /var/www/html
    ErrorLog ${APACHE_LOG_DIR}/error.log
    CustomLog ${APACHE_LOG_DIR}/access.log combined
</VirtualHost>

For more information on configuring Apache, check out:

To learn more about SSH, see: