Hi, I have a few rancher clusters deployed on EC2 (RKE1) and now I'm working towards implementing a VPN in my company (Pritunl) and I was looking to restrict access to rancher nodes from outside, looking into the

rancher-nodes

security group, I see a few rules that give access to

0.0.0.0/0

TCP 30000 - 32767 TCP 80 TCP 443 TCP 6443 TCP 2376 Are those rule safe to modify with my VPN server IP ? or are there more steps to it? thanks