I have installed nginx on an Arch Linux VPS with Vultr. I intend to use it to serve files to myself and two colleagues. I have setup three accounts for us all with login names and passwords via the .htaccess and .htpasswd files. I will also be adding a certificate with let’s encrypt before the server will be used.
The data we will be sharing is commercially sensitive. Is there anything else I need to worry about? Is there anything else I can do to harden the server?
What I meant, and perhaps I have a misunderstanding, is that I was under the impression that SSL could be configured such that it behaves in the way that’s widely known - either a website is “trusted” because an authority has verified that the true owner owns it within a certain period of time - but also as second method more akin to SSH keys, wherein the server has one certificate, the client has a signed cert, and you can only access the server if you’re in possession of a signed certificate on the device being used to access the site. This digicert description matches mine, so I don’t think I’m too far off but I’m missing something
What I meant, and perhaps I have a misunderstanding, i
Yes, I understand what you mean, and you don’t seem to be misunderstanding how TLS client certificates function.
But my point was, that usually it is web server is that accepts and validates the client certificate. A web server is externally visible, and so it is potentially something that can be attacked even if the attacker doesn’t have a valid client certificate.