[Mashiro]

Just a suggestion. Instead of messing around with old and lame VNC try FreeNX/x2Go. It is much better and runs directly over SSH and is therefore encrypted by design.

A great guide: https://freevps.us/thread-11689.html

Of course official documentation can also be used or you might want to use google to figure out how to install it on your OS.
- https://reiners.io/installing-x2go-centos-7/
- https://www.howtoforge.com/how-to-instal...ve-for-vnc

VNC is just one of the worst remote desktop solutions. I mean everytime someone starts to use it they always run into this kind of issues you have. It never works properly unless you use the Windows version.