Bug 1659 - VisualHostKey and host key fingerprint aren't displayed when host's IP address is changed
Summary: VisualHostKey and host key fingerprint aren't displayed when host's IP addres...
Status: CLOSED WORKSFORME
Alias: None
Product: Portable OpenSSH
Classification: Unclassified
Component: ssh (show other bugs)
Version: 5.2p1
Hardware: ix86 Linux
: P2 normal
Assignee: Assigned to nobody
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2009-10-07 20:52 AEDT by Tom Adams
Modified: 2010-04-16 15:50 AEST (History)
1 user (show)

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Description Tom Adams 2009-10-07 20:52:17 AEDT 
My home server's IP address changes frequently, and the first time I ssh into it after it changes, neither the host key fingerprint nor the VisualHostKey are displayed, meaning there's no way for me to verify that I'm sshing into my home machine, and not another machine that's in my known_hosts.

% ssh holizz.ath.cx
Warning: Permanently added the RSA host key for IP address '92.3.96.217' to the list of known hosts.
holizz@holizz.ath.cx's password:^C

% ssh holizz.ath.cx
Host key fingerprint is 13:1c:07:4f:85:e9:73:4e:9f:07:98:cf:8d:56:ec:19
+--[ RSA 2048]----+
|        o.o+.    |
|       . =o      |
|        o..  o . |
|         .o = .Eo|
|        S  = + Bo|
|         .  . B.+|
|             . . |
|                 |
|                 |
+-----------------+

holizz@holizz.ath.cx's password:
Comment 1 Damien Miller 2009-10-23 11:10:04 AEDT 
It couldn't be *any* other machine in your known_hosts, it has to match the name that you are trying to connect to.
Comment 2 Damien Miller 2010-04-16 15:50:16 AEST 
Mass move of bugs RESOLVED->CLOSED following the release of openssh-5.5p1