I have a web server that will be used to manage the stock of a warehouse in a factory. The web server will be accessed only locally so the clients can update and view the available stock. The server can be accessed by
192.168.0.10/index.html and all clients connected to the local network can view it without https. The stock data are not critical (nothing really bad will happen if someone who enters the local network can view the web server, as he/she can physically see the stock).
Do I need to make the current http connection https? And use certificates between the server and clients in the local environment? Is there any danger besides looking at the stock info?