Is security necessary on a vpn server?
I am using openvpn on Linode 1GB. I installed it on Debian 6. It works fine. But articles I read on the internet about how to setup vpn server don't mention about the server security. I also asked some other places about this but couldn't get satisfactory reply.
Do you think something extra needs to be installed or applied to server? I updated debian to latest version and then I installed openvpn. I have some iptables rules to forward traffic to my computer and blocked ssh port from outside, but I can login from Linode Manager. Is this enough for personal use?
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Other than security of vpn, can someone access to my server? I scanned server IP via a vulnerability scanner and report says that all ports are closed except udp ports. Do you think this can cause a risk?