On 2/11/14, Brian <a...@cityscape.co.uk> wrote:
> On Tue 11 Feb 2014 at 10:10:37 +1100, Zenaan Harkness wrote:
>> I'm wondering:
>> 1) how to easily clean known_hosts
>
> ssh-keygen with the -R option.

Sounds great! (also, the CheckHostIP = no option looks very useful in
this regard, thanks Karl)

However - it seems to not work for me? :

$ HOST=raptor
$ ssh-keygen -r $HOST
raptor IN SSHFP 1 1 81488c713a821a5d232fadaaf57ec9699e3e3a5e
raptor IN SSHFP 1 2
928b7a09cce6c42e52ded51ad8e49b6bc24afa23adc62c7c51b7507ec30aac31
raptor IN SSHFP 2 1 137e0fd7551bd8485b91935274d8f1afcf6be3ba
raptor IN SSHFP 2 2
b2e15796502c956b5ecaf4c66848390b11d79ebe16ecbf5efb838630d5ae3846
raptor IN SSHFP 3 1 a7abbd8e090c23371fd335d7bd01fc8238edd08a
raptor IN SSHFP 3 2
5002cd18247173fc72d979ee2f50185d5f5ac72e2e7ecf02f77c7de8b5a6dcc7
$ ssh-keygen -R $HOST
/home/justa/.ssh/known_hosts updated.
Original contents retained as /home/justa/.ssh/known_hosts.old
$ ssh-keygen -r $HOST
raptor IN SSHFP 1 1 81488c713a821a5d232fadaaf57ec9699e3e3a5e
raptor IN SSHFP 1 2
928b7a09cce6c42e52ded51ad8e49b6bc24afa23adc62c7c51b7507ec30aac31
raptor IN SSHFP 2 1 137e0fd7551bd8485b91935274d8f1afcf6be3ba
raptor IN SSHFP 2 2
b2e15796502c956b5ecaf4c66848390b11d79ebe16ecbf5efb838630d5ae3846
raptor IN SSHFP 3 1 a7abbd8e090c23371fd335d7bd01fc8238edd08a
raptor IN SSHFP 3 2
5002cd18247173fc72d979ee2f50185d5f5ac72e2e7ecf02f77c7de8b5a6dcc7

So it looks like the host "raptor" is not removed from known_hosts.. ??


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