Without SSL on the LAN side of a reverse proxy, I presume that all traffic between the server and the reverse proxy is unencrypted and, thus, accessible to any device on the LAN....
It depends on how much other people care about your data, and how much physical control you have over the devices. If you’re in “nation states would like to have it” territory, you should never have unencrypted data at rest, or on the wire. If you’re a regular home user and all your computer stuff is inside your own house, you’re probably fine. In between, there’s a lot of possibilities. Encryption is cheap.
When is it necessary to have SSL on the LAN side of a reverse proxy (between the reverse proxy and the server)?
Without SSL on the LAN side of a reverse proxy, I presume that all traffic between the server and the reverse proxy is unencrypted and, thus, accessible to any device on the LAN....