FirewallBuilder

You can use the same entry fields in this dialog to provide other additional command line parameters for ssh and SCP, for example to use keys from a different identity file. Here is how it looks:

Figure 10.27. 

Here we configure ssh and SCP to use an alternate port and an alternate identity file ~/.ssh/fwadmin_identity. The command line parameter for the port is different for ssh and SCP, but the parameter for the identity file is the same (-i) for both utilities.

On Windows, the simplest way (or maybe the only way) to use alternative keys is to use putty sessions.