upstream commit

document available AuthenticationMethods; bz#2453 ok
dtucker@

Upstream-ID: 2c70576f237bb699aff59889dbf2acba4276d3d0
diff --git a/sshd_config.5 b/sshd_config.5
index 76e157f..c89f378 100644
--- a/sshd_config.5
+++ b/sshd_config.5
@@ -33,8 +33,8 @@
 .\" (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 1.250 2017/07/23 23:37:02 djm Exp $
-.Dd $Mdocdate: July 23 2017 $
+.\" $OpenBSD: sshd_config.5,v 1.251 2017/09/01 05:50:48 djm Exp $
+.Dd $Mdocdate: September 1 2017 $
 .Dt SSHD_CONFIG 5
 .Os
 .Sh NAME
@@ -223,6 +223,19 @@
 .Pp
 Note that each authentication method listed should also be explicitly enabled
 in the configuration.
+.Pp
+The available authentication methods are:
+.Qq gssapi-with-mic ,
+.Qq hostbased ,
+.Qq keyboard-interactive ,
+.Qq none
+(used for access to password-less accounts when
+.Cm PermitEmptyPassword
+is enabled),
+.Qq password
+and
+.Qq publickey .
+
 .It Cm AuthorizedKeysCommand
 Specifies a program to be used to look up the user's public keys.
 The program must be owned by root, not writable by group or others and