Can I open APN port 2195 on my VPS?

You will have full administrative control of your VPS so that you can open and close any ports on it.

Windows VPS

If you have Windows VPS, refer to our following article to open any specific port.

https://manage.accuwebhosting.com/knowledgebase/4942/How-To-Open-Ports-In-Firewall-On-Windows-Server-2016or-2019.html

Linux VPS

If you are using Linux VPS, there should not be any default firewall preinstalled. If you have installed any firewall on your VPS, please refer to your installed firewall manual for more details.