.\" (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_config.5,v 1.115 2008/11/04 08:22:13 djm Exp $
+.\" $OpenBSD: ssh_config.5,v 1.126 2010/01/09 23:04:13 dtucker Exp $
.Dd $Mdocdate$
.Dt SSH_CONFIG 5
.Os
.Dq cast128-cbc .
The default is:
.Bd -literal -offset 3n
-aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour128,
-arcfour256,arcfour,aes192-cbc,aes256-cbc,aes128-ctr,
-aes192-ctr,aes256-ctr
+aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,
+aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,
+aes256-cbc,arcfour
.Ed
.It Cm ClearAllForwardings
Specifies that all local, remote, and dynamic port forwardings
(remote user name) or
.Ql %u
(local user name).
+.Pp
+The command is run synchronously and does not have access to the
+session of the
+.Xr ssh 1
+that spawned it.
+It should not be used for interactive commands.
+.Pp
This directive is ignored unless
.Cm PermitLocalCommand
has been enabled.
and
.Sq 2 .
Multiple versions must be comma-separated.
-The default is
-.Dq 2,1 .
-This means that ssh
-tries version 2 and falls back to version 1
+When this option is set to
+.Dq 2,1
+.Nm ssh
+will try version 2 and fall back to version 1
if version 2 is not available.
+The default is
+.Sq 2 .
.It Cm ProxyCommand
Specifies the command to use to connect to the server.
The command
logging in as root on the remote machine.
.Pp
If the
+.Ar port
+argument is
+.Ql 0 ,
+the listen port will be dynamically allocated on the server and reported
+to the client at run time.
+.Pp
+If the
.Ar bind_address
is not specified, the default is to only bind to loopback addresses.
If the
program.
The default is
.Pa /usr/X11R6/bin/xauth .
-.It Cm ZeroKnowledgePasswordAuthentication
-Specifies whether to use zero knowledge password authentication.
-This authentication method avoids exposure of password to untrusted
-hosts.
-The argument to this keyword must be
-.Dq yes
-or
-.Dq no .
-The default is currently
-.Dq no
-as this method is considered experimental.
.El
.Sh PATTERNS
A