If I add mods to a server, do the clients have to download them too? [duplicate]
I set up a Forge server, which works just fine.
I know that you need the client to be able to play in it, and I know that my friends needs it too.
But if I add mods to the server, do my friends have to download them as well? If so, where do they put them?
The server and the client have to be in sync, so the answer is Yes, your friend has to download the mod(s) as well.
There are many tutorials to find on the internet on how to install mods on a server, like this one:
Your friends should put the mods inside the %AppData%\.minecraft\mods folder.