ssh public key authentication

Mark Haney mhaney at
Wed Jan 7 19:36:42 UTC 2009

Smoot Carl-Mitchell wrote:
> On Wed, 2009-01-07 at 11:13 -0500, Mark Haney wrote:
>> This bites me a lot.  Check to make sure the ~/.ssh folder is set to 600
>> permissions, including all the files in it.  If they /aren't/ set to
>> those permissions, it doesn't matter if the key is there, ssh won't
>> accept it.
> The .ssh directory can be readable by group and other and the
> authorized_keys file can also be readable and public key authentication
> will work.  If those permissions are correct, check the permissions of
> the directory path which leads to the .ssh directory.  All the ancestor
> directories must only be readable by group and other as well.

Yeah, that's true. However, being the truly paranoid that I am, I just
set the whole shooting match to 600.  But 700 is acceptable for the
directory itself.

Frustra laborant quotquot se calculationibus fatigant pro inventione
quadraturae circuli

Mark Haney
Sr. Systems Administrator
ERC Broadband
(828) 350-2415

Call (866) ERC-7110 for after hours support

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