sftp-server on different port than remote login sshd?

[sorrodos]

I have a machine I've set up on my home network to act as a web server and ftp server. If possible, I'd like to use the sftp-server that is a part of Openssh and use that for the ftp side of things. However, in order to do so, I need to open a port in my firewall. My problem is this: I don't want to open a port that will allow system logins... so is is possible to run the sftp-server on a different port than the ssh login server? I want the ftp accessible from the internet, but I don't want to allow system logins from anywhere outside my home network.

Thanks!
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