- markus@cvs.openbsd.org 2009/11/11 21:37:03

[openssh.git] / ssh_config.5

diff --git a/ssh_config.5 b/ssh_config.5
index 58d51ab8276736fa56ef46b9c25ac0417071ef45..cd86e26add139f9993584991659b32130ae96bc0 100644 (file)
--- a/ssh_config.5
+++ b/ssh_config.5
@@ -34,7 +34,7 @@
 .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
 .\" (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 1.99 2007/05/31 19:20:16 jmc Exp $
+.\" $OpenBSD: ssh_config.5,v 1.123 2009/11/10 02:56:22 djm Exp $

 .Dd $Mdocdate$
 .Dt SSH_CONFIG 5
 .Os
 .Dd $Mdocdate$
 .Dt SSH_CONFIG 5
 .Os


@@ -103,6 +103,7 @@ Restricts the following declarations (up to the next
 .Cm Host
 keyword) to be only for those hosts that match one of the patterns
 given after the keyword.
 .Cm Host
 keyword) to be only for those hosts that match one of the patterns
 given after the keyword.

+If more than one pattern is provided, they should be separated by whitespace.

 A single
 .Ql *
 as a pattern can be used to provide global
 A single
 .Ql *
 as a pattern can be used to provide global


@@ -203,9 +204,9 @@ and
 .Dq cast128-cbc .
 The default is:
 .Bd -literal -offset 3n
 .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
 .Ed
 .It Cm ClearAllForwardings
 Specifies that all local, remote, and dynamic port forwardings


@@ -387,7 +388,7 @@ data).
 Specifies whether
 .Xr ssh 1
 should terminate the connection if it cannot set up all requested
 Specifies whether
 .Xr ssh 1
 should terminate the connection if it cannot set up all requested

-dynamic, local, and remote port forwardings.
+dynamic, tunnel, local, and remote port forwardings.

 The argument must be
 .Dq yes
 or
 The argument must be
 .Dq yes
 or


@@ -576,6 +577,14 @@ escape characters:
 It is possible to have
 multiple identity files specified in configuration files; all these
 identities will be tried in sequence.
 It is possible to have
 multiple identity files specified in configuration files; all these
 identities will be tried in sequence.

+.It Cm KbdInteractiveAuthentication
+Specifies whether to use keyboard-interactive authentication.
+The argument to this keyword must be
+.Dq yes
+or
+.Dq no .
+The default is
+.Dq yes .

 .It Cm KbdInteractiveDevices
 Specifies the list of methods to use in keyboard-interactive authentication.
 Multiple method names must be comma-separated.
 .It Cm KbdInteractiveDevices
 Specifies the list of methods to use in keyboard-interactive authentication.
 Multiple method names must be comma-separated.


@@ -591,7 +600,29 @@ and
 Specifies a command to execute on the local machine after successfully
 connecting to the server.
 The command string extends to the end of the line, and is executed with
 Specifies a command to execute on the local machine after successfully
 connecting to the server.
 The command string extends to the end of the line, and is executed with

-.Pa /bin/sh .
+the user's shell.
+The following escape character substitutions will be performed:
+.Ql %d
+(local user's home directory),
+.Ql %h
+(remote host name),
+.Ql %l
+(local host name),
+.Ql %n
+(host name as provided on the command line),
+.Ql %p
+(remote port),
+.Ql %r
+(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.
 This directive is ignored unless
 .Cm PermitLocalCommand
 has been enabled.


@@ -641,7 +672,10 @@ The MAC algorithm is used in protocol version 2
 for data integrity protection.
 Multiple algorithms must be comma-separated.
 The default is:
 for data integrity protection.
 Multiple algorithms must be comma-separated.
 The default is:

-.Dq hmac-md5,hmac-sha1,hmac-ripemd160,hmac-sha1-96,hmac-md5-96 .
+.Bd -literal -offset indent
+hmac-md5,hmac-sha1,umac-64@openssh.com,
+hmac-ripemd160,hmac-sha1-96,hmac-md5-96
+.Ed

 .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
 .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


@@ -703,16 +737,18 @@ The possible values are
 and
 .Sq 2 .
 Multiple versions must be comma-separated.
 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.
 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
 string extends to the end of the line, and is executed with
 .It Cm ProxyCommand
 Specifies the command to use to connect to the server.
 The command
 string extends to the end of the line, and is executed with

-.Pa /bin/sh .
+the user's shell.

 In the command string,
 .Ql %h
 will be substituted by the host name to
 In the command string,
 .Ql %h
 will be substituted by the host name to


@@ -753,6 +789,9 @@ or
 The default is
 .Dq yes .
 This option applies to protocol version 2 only.
 The default is
 .Dq yes .
 This option applies to protocol version 2 only.

+.It Cm RDomain
+Set the routing domain number.
+The default routing domain is set by the system.

 .It Cm RekeyLimit
 Specifies the maximum amount of data that may be transmitted before the
 session key is renegotiated.
 .It Cm RekeyLimit
 Specifies the maximum amount of data that may be transmitted before the
 session key is renegotiated.


@@ -784,7 +823,15 @@ and
 .Ar host Ns / Ns Ar hostport .
 Multiple forwardings may be specified, and additional
 forwardings can be given on the command line.
 .Ar host Ns / Ns Ar hostport .
 Multiple forwardings may be specified, and additional
 forwardings can be given on the command line.

-Only the superuser can forward privileged ports.
+Privileged ports can be forwarded only when
+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
 .Pp
 If the
 .Ar bind_address


@@ -1033,6 +1080,18 @@ See also
 .Sx VERIFYING HOST KEYS
 in
 .Xr ssh 1 .
 .Sx VERIFYING HOST KEYS
 in
 .Xr ssh 1 .

+.It Cm VisualHostKey
+If this flag is set to
+.Dq yes ,
+an ASCII art representation of the remote host key fingerprint is
+printed in addition to the hex fingerprint string at login and
+for unknown host keys.
+If this flag is set to
+.Dq no ,
+no fingerprint strings are printed at login and
+only the hex fingerprint string will be printed for unknown host keys.
+The default is
+.Dq no .

 .It Cm XAuthLocation
 Specifies the full pathname of the
 .Xr xauth 1
 .It Cm XAuthLocation
 Specifies the full pathname of the
 .Xr xauth 1