How to make server authoritative (and block network.Instantiate from clients) ?

Questions & Answers
1

I have been looking all over on finding a way to block clients from sending Network.Instantiate(…) to the whole network.

I managed to block RPC calls by checking for the sender:

[RPC]
public void enterVehicle(NetworkMessageInfo info)
{
	if (info.sender.ToString() == "0" || info.sender.ToString() == "-1")
	{

But I can’t find how to do these same checks on Network.Instantiate() calls

I’ve also read about using the following:

uLink.Network.isAuthoritativeServer = true;

to block rpc and Instantiate messages going between clients, but I can’t seem to find the isAuthoritativeServer variable.

All in all, my question is; how do I check the sender of a Network.Instantiate call ?

2

void OnNetworkInstantiate(NetworkMessageInfo info) {
//check info.sender
}