System of the state of national Es national
The answer is 243. Hope it helps
They may require things such as plastic cut outs and glass depending if you want to be able to have a window to look into the pc. Some cases are 3D Printed although they have to be joined by screws at the end due to the fact that one whole print can take over a week and then it has to be well doesn't but looks better when sanded.
Ping and traceroute locally and on a remote server. Locally it will tell if you local setup is correct and to test your network communication it needs to travel over a network.