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- jakob@cvs.openbsd.org 2003/10/14 19:43:23

Browse Source 
[README.dns]
     update

Resynced with OpenBSD too: DNSFP support is now always compiled in
so the configure support (and documentation thereof) can go away.
This commit is contained in:
Darren Tucker 2003-10-15 16:07:53 +10:00
parent dda19d63ff
commit 64b77bcb4b
2 changed files with 13 additions and 15 deletions
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5
ChangeLog
View File

@ -33,6 +33,9 @@
- jakob@cvs.openbsd.org 2003/10/14 19:42:10
[dns.c dns.h readconf.c ssh-keygen.c sshconnect.c]
include SSHFP lookup code (not enabled by default). ok markus@
- jakob@cvs.openbsd.org 2003/10/14 19:43:23
[README.dns]
update
20031009
- (dtucker) [sshd_config.5] UsePAM defaults to "no". ok djm@
@ -1350,4 +1353,4 @@
- Fix sshd BindAddress and -b options for systems using fake-getaddrinfo.
Report from murple@murple.net, diagnosis from dtucker@zip.com.au
$Id: ChangeLog,v 1.3077 2003/10/15 06:00:47 dtucker Exp $
$Id: ChangeLog,v 1.3078 2003/10/15 06:07:53 dtucker Exp $

23
README.dns
View File

@ -1,17 +1,13 @@
How to verify host keys using OpenSSH and DNS
---------------------------------------------
OpenSSH contains experimental support for verifying host keys using DNS
as described in draft-ietf-secsh-dns-xx.txt. The document contains
very brief instructions on how to test this feature. Configuring DNS
and DNSSEC is out of the scope of this document.
OpenSSH contains support for verifying host keys using DNS as described in
draft-ietf-secsh-dns-05.txt. The document contains very brief instructions
on how to use this feature. Configuring DNS is out of the scope of this
document.
(1) Enable DNS fingerprint support in OpenSSH
configure --with-dns
(2) Generate and publish the DNS RR
(1) Server: Generate and publish the DNS RR
To create a DNS resource record (RR) containing a fingerprint of the
public host key, use the following command:
@ -24,15 +20,14 @@ you should generate one RR for each key.
In the example above, ssh-keygen will print the fingerprint in a
generic DNS RR format parsable by most modern name server
implementations. If your nameserver has support for the SSHFP RR, as
defined by the draft, you can omit the -g flag and ssh-keygen will
print a standard RR.
implementations. If your nameserver has support for the SSHFP RR
you can omit the -g flag and ssh-keygen will print a standard SSHFP RR.
To publish the fingerprint using the DNS you must add the generated RR
to your DNS zone file and sign your zone.
(3) Enable the ssh client to verify host keys using DNS
(2) Client: Enable ssh to verify host keys using DNS
To enable the ssh client to verify host keys using DNS, you have to
add the following option to the ssh configuration file
@ -49,4 +44,4 @@ the remote host key, the user will be notified.
Wesley Griffin
$OpenBSD: README.dns,v 1.1 2003/05/14 18:16:20 jakob Exp $
$OpenBSD: README.dns,v 1.2 2003/10/14 19:43:23 jakob Exp $