Apparently people at gni.org are "typosquatting" Savannah, since there is an SSH server running at savannah.gni.org. Do not connect to that server!

There is nothing we can do to fix this issue. However, SSH will issue you a warning if you ever connect to that server for the first time. Besides, thanks to the public key system we enforce at Savannah, you never publish private credentials when connecting to a remote server, so you do not risk compromising your Savannah account that way.