Customized Linux Operating System with Security Authentication

Dear Gurus/Experts of UNIX/LINUX,

Im Isravel from India, I've customized CentOS Installation ISO as per my new product requirements. I want to give serial key authentication to the clients who all are trying to install ISO file.

Can anyone guide me how to create serial key authentication during the installation.

I do really understand It's an open source, I have customized for new product testing and its not for sale. Its for free with new authentication option

Thank in Advance

Isravel

Hi,

This would normally be done at the application level, not the OS level - it is unusual to lock the OS in the Unix world.

Having installed many flavours and vesions ov *nix systems, I don't recal any where I had to input a key,

Regards

Gull