We have a few web servers and an FTP server that sits behind our public IP that is used for a few applications. We need to get an SSL Certificate that I can install on each of the servers to pass PCI requirements.
Currently, I have been using self-signed certs but that’s not good enough for the standard so I have to buy a publicly trusted one. All of the servers are reached through the same FQDN that points at the IP address.
These are the domains and their sub domains:
Will a basic cert work? I guess I’m confused as to whether the ftp.domain counts as a subdomain or not. All the other servers are separated buy for and forwarding at the firewall level.