From 5fc5168dde0c840bf743058d235193fc27e61cab Mon Sep 17 00:00:00 2001 From: Colin Watson Date: Mon, 16 Jan 2017 13:53:04 +0000 Subject: Remove ssh_host_dsa_key from HostKey default The client no longer accepts DSA host keys, and servers using the default HostKey setting should have better host keys available. Bug: https://bugzilla.mindrot.org/show_bug.cgi?id=2662 Bug-Debian: https://bugs.debian.org/850614 Last-Update: 2017-01-16 Patch-Name: no-dsa-host-key-by-default.patch --- servconf.c | 2 -- sshd.8 | 7 +++---- sshd_config | 1 - sshd_config.5 | 7 +++---- 4 files changed, 6 insertions(+), 11 deletions(-) diff --git a/servconf.c b/servconf.c index a391cf4b..1a7a5f18 100644 --- a/servconf.c +++ b/servconf.c @@ -204,8 +204,6 @@ fill_default_server_options(ServerOptions *options) /* fill default hostkeys for protocols */ options->host_key_files[options->num_host_key_files++] = _PATH_HOST_RSA_KEY_FILE; - options->host_key_files[options->num_host_key_files++] = - _PATH_HOST_DSA_KEY_FILE; #ifdef OPENSSL_HAS_ECC options->host_key_files[options->num_host_key_files++] = _PATH_HOST_ECDSA_KEY_FILE; diff --git a/sshd.8 b/sshd.8 index 6355178f..f038fb82 100644 --- a/sshd.8 +++ b/sshd.8 @@ -164,11 +164,10 @@ 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 +.Pa /etc/ssh/ssh_host_rsa_key , +.Pa /etc/ssh/ssh_host_ecdsa_key and -.Pa /etc/ssh/ssh_host_rsa_key . +.Pa /etc/ssh/ssh_host_ed25519_key . It is possible to have multiple host key files for the different host key algorithms. .It Fl i diff --git a/sshd_config b/sshd_config index f68edf36..92822959 100644 --- a/sshd_config +++ b/sshd_config @@ -16,7 +16,6 @@ #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/sshd_config.5 b/sshd_config.5 index cc5d9fb0..0747cc8b 100644 --- a/sshd_config.5 +++ b/sshd_config.5 @@ -741,11 +741,10 @@ 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 +.Pa /etc/ssh/ssh_host_rsa_key , +.Pa /etc/ssh/ssh_host_ecdsa_key and -.Pa /etc/ssh/ssh_host_rsa_key . +.Pa /etc/ssh/ssh_host_ed25519_key . .Pp Note that .Xr sshd 8