[Twisted-Python] Conch examples give me host key related errors

[Oon-Ee Ng]

Oh and it seems tab completion was being worked on but that's been
left waiting for a while now -
https://twistedmatrix.com/trac/ticket/6863

Still fantastically useful without though, so no complaints there.

On Mon, Oct 10, 2016 at 10:55 AM, Oon-Ee Ng <ngoonee.talk at gmail.com> wrote:
> A reply from Amber herself! Thanks for the pointer, I dug into the
> code a bit and figured these lines would do it (assuming publicKey and
> privateKey are already defined as strings)
>
> f = whatever_is_generating_a_factory(**kwargs)
> f.publicKeys[b'ssh-rsa'] = keys.Key.fromString(data=publicKey)
> f.privateKeys[b'ssh-rsa'] = keys.Key.fromString(data=privateKey)
> reactor.listenTCP(port, f)
>
> It seems keys is deprecated from 15.5.5 though, what's the modern alternative?
>
> On Mon, Oct 10, 2016 at 10:11 AM, Amber "Hawkie" Brown
> <hawkowl at atleastfornow.net> wrote:
>> Hi,
>>
>> This is most likely because of a security change I made a few versions ago,
>> where conch will no longer use a set of default, hard-coded SSH keys.
>>
>> You may want to do something like
>> https://github.com/twisted/twisted/blob/trunk/src/twisted/conch/manhole_tap.py#L149
>> , and add a key yourself -- we should update these examples to add this, so
>> that they run out of the box again.
>>
>> - Amber
>>
>> On 10 Oct. 2016, at 13:05, Oon-Ee Ng <ngoonee.talk at gmail.com> wrote:
>>
>> My google-fu is failing me (or I'm the only one with a misconfigured
>> ssh system), but none of the examples on
>> http://twistedmatrix.com/documents/current/conch/examples/index.html
>> run for me.
>>
>> The ConchError I'm mostly getting says ('no host keys, failing',
>> None), while the simplesshserver.py example fails with a KeyError
>> 'sshKeyDir'
>>
>> Not sure where twisted-conch expects host keys to be, but my openssh
>> host keys are fine (I have a running sshd which sources them from
>> /etc/ssh as per usual). That being said, there's no way twisted-conch
>> as a python user-process would have access to them (nor should it).
>>
>> I'm actually just wanting to use twisted-conch-manhole, but running
>> into this problem first. Is there something I need to configure in my
>> system?
>>
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