Mailinglist Archive: opensuse-factory (533 mails)

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Re: [opensuse-factory] OpenSSH hostkey related changes
  • From: aledr <matrixworkstation@xxxxxxxxx>
  • Date: Wed, 7 Apr 2010 08:39:10 -0300
  • Message-id: <r2u73e156131004070439obe2ceaa4x5f41e62eb102819c@xxxxxxxxxxxxxx>
From ssh-keygen:

-R hostname
Removes all keys belonging to hostname from a known_hosts
file. This option is useful to delete hashed hosts (see the -H option


On Wed, Apr 7, 2010 at 5:03 AM, Nikanth Karthikesan <knikanth@xxxxxxxxxx> wrote:

On 4/6/2010 at 09:29 PM, Marcus Meissner <meissner@xxxxxxx> wrote:

Secondly, we have switched the .ssh/known_hosts file to "hashed hostkeys".
This means, the known_hosts file no longer lists the hosts or ip numbers
in readable form, but in hashed form.

So how to delete only an entry, say if a machines key has changed?

This change is to avoid that worms, if they ever infect your account, to
use this file to find out "known hosts" to which to try to login next
and so try to stop a worm infection of e.g. your servers.


[ ]'s
Aledr - Alexandre
"OpenSource Solutions for SmallBusiness Problems"
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