I've recently setup a OpenVPN server on my VPS, and I want to expose the VPN server port to the internet. I've installed it using the following script: https://git.io/vpn (a installer). The main point which I'm asking just to be sure is, if I expose the port which the OpenVPN server is running on (1194) to the internet, can someone connect without the keys in the configuration files ? And if not, is it secure how I have it? The configuration file has the following entries in it (they may be important to this question):
auth SHA512
and:
cipher RC2-CBC
then it contains some keys like: certificate key, private key, OpenVPN Static Key V1
You can find the full configuration here: https://pastebin.com/AUKt1Ve8 (posted on pastebin because stackoverflow removes the lines)
I'm new to OpenVPN, so all help is appreciated! Thanks,
Best Regards - Martin