Thank you for your post.
It would probably be best if you reviewed the FileMaker Server 14 manuals. Specifically, I would start with the Getting Started Guide which can be found at: https://fmhelp.filemaker.com/docs/14/en/fms14_getting_started.pdf
For setting up the network, see the Network Install Setup Guide at: https://fmhelp.filemaker.com/docs/14/en/fms14_network_install.pdf
If you have any further questions, please let me know.