Questions about sshd_config man page and comments in the file
Darren Tucker
dtucker at zip.com.au
Thu Feb 23 20:28:57 EST 2006
On Thu, Feb 23, 2006 at 08:13:08PM +1100, Darren Tucker wrote:
> > b)Comments in sshd_config file:
[...]
> The comment in the example config file is outdated and should be fixed.
Does this help clear up the confusion?
Index: sshd_config
===================================================================
RCS file: /usr/local/src/security/openssh/cvs/openssh_cvs/sshd_config,v
retrieving revision 1.74
diff -u -p -r1.74 sshd_config
--- sshd_config 13 Dec 2005 08:29:03 -0000 1.74
+++ sshd_config 23 Feb 2006 09:26:42 -0000
@@ -71,12 +71,13 @@
# Set this to 'yes' to enable PAM authentication, account processing,
# and session processing. If this is enabled, PAM authentication will
-# be allowed through the ChallengeResponseAuthentication mechanism.
-# Depending on your PAM configuration, this may bypass the setting of
-# PasswordAuthentication, PermitEmptyPasswords, and
-# "PermitRootLogin without-password". If you just want the PAM account and
-# session checks to run without PAM authentication, then enable this but set
-# ChallengeResponseAuthentication=no
+# be allowed through the ChallengeResponseAuthentication and
+# PasswordAuthentication. Depending on your PAM configuration,
+# PAM authentication via ChallengeResponseAuthentication may bypass
+# the setting of "PermitRootLogin without-password".
+# If you just want the PAM account and session checks to run without
+# PAM authentication, then enable this but set PasswordAuthentication
+# and ChallengeResponseAuthentication to 'no'.
#UsePAM no
#AllowTcpForwarding yes
Index: sshd_config.5
===================================================================
RCS file: /usr/local/src/security/openssh/cvs/openssh_cvs/sshd_config.5,v
retrieving revision 1.53
diff -u -p -r1.53 sshd_config.5
--- sshd_config.5 3 Jan 2006 07:47:31 -0000 1.53
+++ sshd_config.5 23 Feb 2006 09:27:42 -0000
@@ -677,7 +677,10 @@ If set to
.Dq yes
this will enable PAM authentication using
.Cm ChallengeResponseAuthentication
-and PAM account and session module processing for all authentication types.
+and
+.Cm PasswordAuthentication
+in addition to PAM account and session module processing for all
+authentication types.
.Pp
Because PAM challenge-response authentication usually serves an equivalent
role to password authentication, you should disable either
--
Darren Tucker (dtucker at zip.com.au)
GPG key 8FF4FA69 / D9A3 86E9 7EEE AF4B B2D4 37C9 C982 80C7 8FF4 FA69
Good judgement comes with experience. Unfortunately, the experience
usually comes from bad judgement.
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