What security implications should I know about/look for when running OpenVPN on the same server as my network cloud controller and apt-cache-ng?
I plan on using the same server to run apt-cacher-ng to cache updates for other Linux servers on the network. It will also run my cloud network controller (manages my switches, WAPs, etc).
Since OpenVPN requires opening up a port-forward on the router to the server, does this pose a bigger threat or am I over-thinking things?
I do not want to put apt-cacher on another system. The other possibility is virtualization but I'm not familiar with KVM or other Linux virtualization software. I don't run MS, so Hyper-V is out. And ESXi 6/6U1 gives me disk errors on Debian 8 due to the newer kernel not supporting WRITE SAME.