stop loading DSA keys by default, remove sshd_config stanza and manpage

bits; from Colin Watson via bz#2662, ok dtucker@

4 files changed, 6 insertions, 13 deletions

diff --git a/usr.bin/ssh/servconf.c b/usr.bin/ssh/servconf.c
index 226933c5a72..93a1e54d7d7 100644
--- a/usr.bin/ssh/servconf.c
+++ b/usr.bin/ssh/servconf.c
@@ -1,5 +1,5 @@
 
-/* $OpenBSD: servconf.c,v 1.323 2018/02/09 02:37:36 dtucker Exp $ */
+/* $OpenBSD: servconf.c,v 1.324 2018/02/16 02:32:40 djm Exp $ */
 /*
  * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
  *                    All rights reserved
@@ -229,8 +229,6 @@ fill_default_server_options(ServerOptions *options)
 		servconf_add_hostkey("[default]", 0, options,
 		    _PATH_HOST_RSA_KEY_FILE);
 		servconf_add_hostkey("[default]", 0, options,
-		    _PATH_HOST_DSA_KEY_FILE);
-		servconf_add_hostkey("[default]", 0, options,
 		    _PATH_HOST_ECDSA_KEY_FILE);
 		servconf_add_hostkey("[default]", 0, options,
 		    _PATH_HOST_ED25519_KEY_FILE);
diff --git a/usr.bin/ssh/sshd.8 b/usr.bin/ssh/sshd.8
index aa00ea01e92..8dc33e8c15d 100644
--- a/usr.bin/ssh/sshd.8
+++ b/usr.bin/ssh/sshd.8
@@ -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.8,v 1.294 2018/02/05 04:02:53 djm Exp $
-.Dd $Mdocdate: February 5 2018 $
+.\" $OpenBSD: sshd.8,v 1.295 2018/02/16 02:32:40 djm Exp $
+.Dd $Mdocdate: February 16 2018 $
 .Dt SSHD 8
 .Os
 .Sh NAME
@@ -166,7 +166,6 @@ This option must be given if
 is not run as root (as the normal
 host key files are normally not readable by anyone but root).
 The default is
-.Pa /etc/ssh/ssh_host_dsa_key ,
 .Pa /etc/ssh/ssh_host_ecdsa_key ,
 .Pa /etc/ssh/ssh_host_ed25519_key
 and
@@ -847,7 +846,6 @@ This file is used in exactly the same way as
 but allows host-based authentication without permitting login with
 rlogin/rsh.
 .Pp
-.It Pa /etc/ssh/ssh_host_dsa_key
 .It Pa /etc/ssh/ssh_host_ecdsa_key
 .It Pa /etc/ssh/ssh_host_ed25519_key
 .It Pa /etc/ssh/ssh_host_rsa_key
@@ -858,7 +856,6 @@ Note that
 .Nm
 does not start if these files are group/world-accessible.
 .Pp
-.It Pa /etc/ssh/ssh_host_dsa_key.pub
 .It Pa /etc/ssh/ssh_host_ecdsa_key.pub
 .It Pa /etc/ssh/ssh_host_ed25519_key.pub
 .It Pa /etc/ssh/ssh_host_rsa_key.pub
diff --git a/usr.bin/ssh/sshd_config b/usr.bin/ssh/sshd_config
index e0ad8e7f094..81c402f7873 100644
--- a/usr.bin/ssh/sshd_config
+++ b/usr.bin/ssh/sshd_config
@@ -1,4 +1,4 @@
-#	$OpenBSD: sshd_config,v 1.101 2017/03/14 07:19:07 djm Exp $
+#	$OpenBSD: sshd_config,v 1.102 2018/02/16 02:32:40 djm Exp $
 
 # This is the sshd server system-wide configuration file.  See
 # sshd_config(5) for more information.
@@ -14,7 +14,6 @@
 #ListenAddress ::
 
 #HostKey /etc/ssh/ssh_host_rsa_key
-#HostKey /etc/ssh/ssh_host_dsa_key
 #HostKey /etc/ssh/ssh_host_ecdsa_key
 #HostKey /etc/ssh/ssh_host_ed25519_key
 
diff --git a/usr.bin/ssh/sshd_config.5 b/usr.bin/ssh/sshd_config.5
index 8402e7a303f..74d8479bed2 100644
--- a/usr.bin/ssh/sshd_config.5
+++ b/usr.bin/ssh/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 1.261 2018/02/10 06:54:38 djm Exp $
-.Dd $Mdocdate: February 10 2018 $
+.\" $OpenBSD: sshd_config.5,v 1.262 2018/02/16 02:32:40 djm Exp $
+.Dd $Mdocdate: February 16 2018 $
 .Dt SSHD_CONFIG 5
 .Os
 .Sh NAME
@@ -715,7 +715,6 @@ is not to load any certificates.
 Specifies a file containing a private host key
 used by SSH.
 The defaults are
-.Pa /etc/ssh/ssh_host_dsa_key ,
 .Pa /etc/ssh/ssh_host_ecdsa_key ,
 .Pa /etc/ssh/ssh_host_ed25519_key
 and