MSysGit i ssh config. brakujący

1) Uruchom Git Bash (C: Program Files (x86) Git bin sh.exe - login)

$ ssh -v git@github.com
OpenSSH_4.6p1, OpenSSL 0.9.8e 23 Feb 2007
debug1: Reading configuration data /c/Users/Alexander Fedorov/.ssh/config
debug1: Applying options for github.com
debug1: Connecting to github.com [207.97.227.239] port 22.
debug1: Connection established.
...
Hi xpoft! You've successfully authenticated, but GitHub does not provide shell access.
...

W porządku! dobrze czyta konfigurację ssh.

2) Uruchom z cmd.exe

C:\Users\Alexander Fedorov>ssh.exe -v git@github.com
OpenSSH_4.6p1, OpenSSL 0.9.8e 23 Feb 2007
debug1: Connecting to github.com [207.97.227.239] port 22.
...
debug1: No more authentication methods to try.
Permission denied (publickey).

Nooo. brakuje pliku konfiguracyjnego ssh ...

Jak ... jak czytać konfigurację z ssh.exe?