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authorSimon Wilkinson <simon@sxw.org.uk>2014-02-09 16:09:48 +0000
committerColin Watson <cjwatson@debian.org>2016-01-14 15:07:15 +0000
commit6a0a4b2f79889c9b0d5e2478a6ee5f51be38dcc9 (patch)
tree2f8cd5a92310d9ed3b7020366f3030fc0d1b53a4 /sshd_config.5
parenteeff4de96f5d7365750dc56912c2c62b5c28db6b (diff)
GSSAPI key exchange support
This patch has been rejected upstream: "None of the OpenSSH developers are in favour of adding this, and this situation has not changed for several years. This is not a slight on Simon's patch, which is of fine quality, but just that a) we don't trust GSSAPI implementations that much and b) we don't like adding new KEX since they are pre-auth attack surface. This one is particularly scary, since it requires hooks out to typically root-owned system resources." However, quite a lot of people rely on this in Debian, and it's better to have it merged into the main openssh package rather than having separate -krb5 packages (as we used to have). It seems to have a generally good security history. Bug: https://bugzilla.mindrot.org/show_bug.cgi?id=1242 Last-Updated: 2016-01-04 Patch-Name: gssapi.patch
Diffstat (limited to 'sshd_config.5')
-rw-r--r--sshd_config.511
1 files changed, 11 insertions, 0 deletions
diff --git a/sshd_config.5 b/sshd_config.5
index b18d340af..5491c89cf 100644
--- a/sshd_config.5
+++ b/sshd_config.5
@@ -621,6 +621,12 @@ Specifies whether user authentication based on GSSAPI is allowed.
621The default is 621The default is
622.Dq no . 622.Dq no .
623Note that this option applies to protocol version 2 only. 623Note that this option applies to protocol version 2 only.
624.It Cm GSSAPIKeyExchange
625Specifies whether key exchange based on GSSAPI is allowed. GSSAPI key exchange
626doesn't rely on ssh keys to verify host identity.
627The default is
628.Dq no .
629Note that this option applies to protocol version 2 only.
624.It Cm GSSAPICleanupCredentials 630.It Cm GSSAPICleanupCredentials
625Specifies whether to automatically destroy the user's credentials cache 631Specifies whether to automatically destroy the user's credentials cache
626on logout. 632on logout.
@@ -642,6 +648,11 @@ machine's default store.
642This facility is provided to assist with operation on multi homed machines. 648This facility is provided to assist with operation on multi homed machines.
643The default is 649The default is
644.Dq yes . 650.Dq yes .
651.It Cm GSSAPIStoreCredentialsOnRekey
652Controls whether the user's GSSAPI credentials should be updated following a
653successful connection rekeying. This option can be used to accepted renewed
654or updated credentials from a compatible client. The default is
655.Dq no .
645.It Cm HostbasedAcceptedKeyTypes 656.It Cm HostbasedAcceptedKeyTypes
646Specifies the key types that will be accepted for hostbased authentication 657Specifies the key types that will be accepted for hostbased authentication
647as a comma-separated pattern list. 658as a comma-separated pattern list.