Allow incoming SCP connections on Mac

Question

How can I allow incoming scp connections on my mac (Mac OS X 10.6.4) from other machines on the same network?
Every time I'm trying to scp something on the machine I get a Connection refused error.

Thanks!

Later edit:
the command used is this:
scp path/to/local.file user@remote.machine:

the reply is this:
ssh: connect to remothe.machine port 22: Connection refused
lost connection

Answer 1

System Preferences pane => Sharing applet => check the Remote Login checkbox. This will enable SSH, and in turn, SCP.

Answer 2

In the settings there is the option to activate SSH. I think its under "Sharing"/"Remote Login".