Is something needs to be done to secure linux server after installing vpn on it?
I am newbie to Linux. I bought a vps server and installed openvpn server on it. It works fine. But what I worry is, every article I read about how to setup vpn server only shows how to install&configure vpn but doesn't mention about the server security.
I have only few firewall rules about how to transfer traffic to my laptop successfuly. Because I haven't installed anything other than vpn, do you think someone can access to server except ssh login? I have no firewall rules other than forwarding rules. On windows I have tons of security programs and that makes me uneasy on linux.
Could you please give me advice?