.\" (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: sshd_config.5,v 1.43 2005/05/23 23:32:46 djm Exp $
+.\" $OpenBSD: sshd_config.5,v 1.48 2006/01/02 17:09:49 jmc Exp $
.Dd September 25, 1999
.Dt SSHD_CONFIG 5
.Os
aes192-ctr,aes256-ctr''
.Ed
.It Cm ClientAliveCountMax
-Sets the number of client alive messages (see above) which may be
+Sets the number of client alive messages (see below) which may be
sent without
.Nm sshd
receiving any messages back from the client.
The default value is 3.
If
.Cm ClientAliveInterval
-(above) is set to 15, and
+(see below) is set to 15, and
.Cm ClientAliveCountMax
is left at the default, unresponsive ssh clients
will be disconnected after approximately 45 seconds.
is 0, indicating that these messages will not be sent to the client.
This option applies to protocol version 2 only.
.It Cm Compression
-Specifies whether compression is allowed.
+Specifies whether compression is allowed, or delayed until
+the user has authenticated successfully.
The argument must be
-.Dq yes
+.Dq yes ,
+.Dq delayed ,
or
.Dq no .
The default is
-.Dq yes .
+.Dq delayed .
.It Cm DenyGroups
This keyword can be followed by a list of group name patterns, separated
by spaces.
Default is
.Dq no .
.It Cm KerberosGetAFSToken
-If AFS is active and the user has a Kerberos 5 TGT, attempt to aquire
+If AFS is active and the user has a Kerberos 5 TGT, attempt to acquire
an AFS token before accessing the user's home directory.
Default is
.Dq no .
If this option is set to
.Dq no
root is not allowed to log in.
+.It Cm PermitTunnel
+Specifies whether
+.Xr tun 4
+device forwarding is allowed.
+The argument must be
+.Dq yes ,
+.Dq point-to-point ,
+.Dq ethernet
+or
+.Dq no .
+The default is
+.Dq no .
.It Cm PermitUserEnvironment
Specifies whether
.Pa ~/.ssh/environment