<div dir="ltr">You can offload this to ldap. We do that here.<br><br><div class="gmail_quote">2008/9/16 Mark Stewart <span dir="ltr"><<a href="mailto:markwstewart@gmail.com">markwstewart@gmail.com</a>></span><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
good - point. I want to avoid a PKI style role out - I'm looking at<br>
ways of locking/changing location of the authorized_key file.<br>
<div><div></div><div class="Wj3C7c"><br>
On 16/09/2008, Yvan Seth <<a href="http://watford.lug.org.uk" target="_blank">watford.lug.org.uk</a>@<a href="http://malignity.net" target="_blank">malignity.net</a>> wrote:<br>
> On Tue, Sep 16, 2008 at 03:29:54PM +0100, Mark Stewart wrote:<br>
>> Hi Magnus, thanks for your input. I think that what Yvan said is true<br>
>> and that it will come down to policy even if I distributed the keys<br>
>> myself as users can update their own authorized_keys file in their<br>
>> .ssh folder. I guess if I get time I could police by locking down the<br>
>> authorized_keys file so users can't update it but will involve some<br>
>> testing.<br>
>><br>
>> I could also check the authorized key file to ensure it only has keys<br>
>> generated by me inside it. mmmm, I need to go and do some testing.<br>
><br>
> Alas, Magnus's suggestion doesn't quite work. You can distribute<br>
> pre-passphrased keys but then your users (who obviously must know the<br>
> passphrase) can "unwwap" the key to an unprotected version (see the<br>
> ssh-keygen manpage.) Assuming you have mischievous users.<br>
><br>
> There is another completely different option... use an external key<br>
> dongle of some kind. See the -I option for the command-line SSH client.<br>
> I've never seen this in action and have no idea what the caveats are.<br>
> Top Google links for "ssh smartcard":<br>
> <a href="http://smartcard-auth.de/ssh-en.html" target="_blank">http://smartcard-auth.de/ssh-en.html</a><br>
> <a href="http://www.faqs.org/docs/Linux-HOWTO/Smart-Card-HOWTO.html" target="_blank">http://www.faqs.org/docs/Linux-HOWTO/Smart-Card-HOWTO.html</a><br>
> (Question for further research: what's to stop someone from simply<br>
> dumping the key data from the "smart" card?)<br>
><br>
> -Yvan<br>
><br>
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</div></div></blockquote></div><br><br clear="all"><br>-- <br>MCSE is to computers as McDonalds Certified Chef is to fine cuisine.<br>
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