I'm trying to use some image processing software that requires a X server. And it seems that we can fake a x server using xvfb. So I asked our system administrator to install the xvfb for me. But they say that using a xvfb would effect other user. And they also don't recommend me to install by myself into my home directory because they do not allow services, servers and daemons on the clusters. And the account would get locked if user use hpc to run service.
Is it true that xvfb would always effect other user even if I install in my home directory, and is there a way to use it without effecting other?