Long story short, we have 100 or so clients. Some access us by IP (1.1.1.1), and some access us by IP ftp.contoso.com. We use Bitwise SFTP server if that is helpful. Is there any way we can detect who is accessing us by IP? Bitwise does have logs but I don't think it has the useful info.
Note this was done before I got here, I implemented the ftp.contoso.com on new clients.
This is needed b/c in 3 weeks we are moving our server, and probably will not be able to retain that IP address.