.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
.\"
-.\" $OpenBSD: ssh.1,v 1.137 2001/09/05 06:23:07 deraadt Exp $
+.\" $OpenBSD: ssh.1,v 1.140 2001/10/30 20:29:09 markus Exp $
.Dd September 25, 1999
.Dt SSH 1
.Os
List forwarded connections
.It Cm ~&
Background ssh at logout when waiting for forwarded connection / X11 sessions
-to terminate (protocol version 1 only)
+to terminate
.It Cm ~?
Display a list of escape characters
.It Cm ~R
``aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,
aes192-cbc,aes256-cbc''
.Ed
+.It Cm ClearAllForwardings
+Specifies that all local, remote and dynamic port forwardings
+specified in the configuration files or on the command line be
+cleared. This option is primarily useful when used from the
+.Nm
+command line to clear port forwardings set in
+configuration files, and is automatically set by
+.Xr scp 1
+and
+.Xr sftp 1 .
+The argument must be
+.Dq yes
+or
+.Dq no .
+The default is
+.Dq no .
.It Cm Compression
Specifies whether to use compression.
The argument must be
Multiple algorithms must be comma-separated.
The default is
.Dq hmac-md5,hmac-sha1,hmac-ripemd160,hmac-sha1-96,hmac-md5-96 .
+.It Cm NoHostAuthenticationForLocalhost
+This option can be used if the home directory is shared across machines.
+In this case localhost will refer to a different machine on each of
+the machines and the user will get many warnings about changed host keys.
+However, this option disables host authentication for localhost.
+The argument to this keyword must be
+.Dq yes
+or
+.Dq no .
+The default is to check the host key for localhost.
.It Cm NumberOfPasswordPrompts
Specifies the number of password prompts before giving up.
The argument to this keyword must be an integer.