Re: SSH resources, specifically on certificates (certificate authentication)

2022-07-15 Thread David Christensen
On 7/15/22 05:32, Curt wrote: The question I ask myself preliminarily, before delving further into the matter, is whether certificate-based SSH authentication is appropriate for a home LAN with three users. +1 I decided SSH with publickey authentication and passphrase keys were plenty for

Re: SSH resources, specifically on certificates (certificate authentication)

2022-07-15 Thread rhkramer
On Friday, July 15, 2022 08:49:01 AM to...@tuxteam.de wrote: > On Fri, Jul 15, 2022 at 12:32:35PM -, Curt wrote: > > The question I ask myself preliminarily, before delving further into > > the matter, is whether certificate-based SSH authentication is > > appropriate for a home LAN with three

3 more surprising (to me) things about ssh (was: Re: SSH resources, specifically on certificates (certificate authentication))

2022-07-15 Thread rhkramer
Thanks for the response, and to dsr as well. I won't really ask a question here, but I will make some comments -- not sure how / where to fit them in -- will try to intersperse below. Or maybe I'll just top post them here: Surprise 2: Another surprising thing to me (with the evolution of the

Re: SSH resources, specifically on certificates (certificate authentication)

2022-07-15 Thread tomas
On Fri, Jul 15, 2022 at 12:32:35PM -, Curt wrote: > On 2022-07-14, Dan Ritter wrote: > > > > If you've got a very large organization, you may want to support > > the infrastructure to generate new SSH certs for people daily, > > with expiration dates of 24 hours. Then you need to make sure > >

Re: SSH resources, specifically on certificates (certificate authentication)

2022-07-15 Thread Curt
On 2022-07-14, Dan Ritter wrote: > > If you've got a very large organization, you may want to support > the infrastructure to generate new SSH certs for people daily, > with expiration dates of 24 hours. Then you need to make sure > that mechanism is working perfectly and has appropriate > redunda

Re: SSH resources, specifically on certificates (certificate authentication)

2022-07-15 Thread Dan Ritter
to...@tuxteam.de wrote: > See, asymmetrical encryption (e.g. RSA, Elliptic Curve) is far too expensive > to use on bulk data, so it typically is used to encrypt a key (generated on > the spot), called "session key". The latter is used to symmetrically (e.g. > AES) encrypt the bulk data. You use th

Re: SSH resources, specifically on certificates (certificate authentication)

2022-07-14 Thread tomas
On Thu, Jul 14, 2022 at 08:01:19PM -0400, rhkra...@gmail.com wrote: [...] > I'll probably start with a post to describe one of the most surprising things > I learned about ssh so far -- to jump ahead and spoil it, it turns out that > public key encryption is not used for the exchange of the rea

Re: SSH resources, specifically on certificates (certificate authentication)

2022-07-14 Thread David Wright
On Thu 14 Jul 2022 at 10:00:29 (-0400), Frank Pikelner wrote: > SSH certificate authentication is not complicated and has many > advantages. Some organizations use SSH certificates to provide limited > access for admins to servers. In my opinion using SSH certificates is > preferred to just using

Re: SSH resources, specifically on certificates (certificate authentication)

2022-07-14 Thread rhkramer
Intentionally top posting. Thanks for the reply! I'm thinking of two or three paths forward -- one is to give up on this, but I've invested a lot of calandar days (and non-"spare" manhours so far, so I don't want to do that. Another is to make another pass through some of what I consider the b

Re: SSH resources, specifically on certificates (certificate authentication)

2022-07-14 Thread David Christensen
On 7/14/22 09:59, rhkra...@gmail.com wrote: On Wednesday, July 13, 2022 07:58:14 PM David Christensen wrote: Buy and read "TLS Mastery" by Lucas: https://mwl.io/nonfiction/networking#tls Replying off list intentionally: AFAIK, TLS doesn't have much, if anything, to do with ssh certificates.

Re: SSH resources, specifically on certificates (certificate authentication)

2022-07-14 Thread rhkramer
On Wednesday, July 13, 2022 07:09:33 PM Jeremy Ardley wrote: > I understand that certificate based SSH authentication has problems with > overall security management on a network. Password only has similar > problems. I'm not sure it has any more problems than ssh public key authentication, maybe

Re: SSH resources, specifically on certificates (certificate authentication)

2022-07-14 Thread tomas
On Thu, Jul 14, 2022 at 08:55:34AM -0400, rhkra...@gmail.com wrote: > > > dsr, Thanks for the reply! > > Like I said, I think I went down a rabbit hole, and I wish I had realized > that > before I went there. As someone else said, I agree that the certificate way is quite a bit more complex t

Re: SSH resources, specifically on certificates (certificate authentication)

2022-07-14 Thread Frank Pikelner
On Thu, Jul 14, 2022 at 8:56 AM wrote: > > > > dsr, Thanks for the reply! > > Like I said, I think I went down a rabbit hole, and I wish I had realized that > before I went there. > > I've invested quite a few calendar days (and "spare" manhours) in trying to > figure this out, so I'm not quite r

Re: SSH resources, specifically on certificates (certificate authentication)

2022-07-14 Thread rhkramer
dsr, Thanks for the reply! Like I said, I think I went down a rabbit hole, and I wish I had realized that before I went there. I've invested quite a few calendar days (and "spare" manhours) in trying to figure this out, so I'm not quite ready to give up. I do have some ideas (an idea) for an

Re: SSH resources, specifically on certificates (certificate authentication)

2022-07-13 Thread Dan Ritter
Dan Purgert wrote: > On Jul 13, 2022, David Wright wrote: > > On Wed 13 Jul 2022 at 18:40:18 (-0400), Dan Purgert wrote: > > > On Jul 13, 2022, rhkra...@gmail.com wrote: > > > > I seem to have gone down a rabbit hole. > > > > > > > > I want(ed?) to set up ssh on my LAN using certificate authentic

Re: SSH resources, specifically on certificates (certificate authentication)

2022-07-13 Thread Dan Purgert
On Jul 13, 2022, David Wright wrote: > On Wed 13 Jul 2022 at 18:40:18 (-0400), Dan Purgert wrote: > > On Jul 13, 2022, rhkra...@gmail.com wrote: > > > I seem to have gone down a rabbit hole. > > > > > > I want(ed?) to set up ssh on my LAN using certificate authentication, and > > > am > > > havi

Re: SSH resources, specifically on certificates (certificate authentication)

2022-07-13 Thread David Christensen
On 7/13/22 13:11, rhkra...@gmail.com wrote: I seem to have gone down a rabbit hole. I want(ed?) to set up ssh on my LAN using certificate authentication, and am having a lot of trouble finding the information I need / would like to have. I won't go into much detail now, but I didn't realize how

Re: SSH resources, specifically on certificates (certificate authentication)

2022-07-13 Thread David Wright
On Wed 13 Jul 2022 at 18:40:18 (-0400), Dan Purgert wrote: > On Jul 13, 2022, rhkra...@gmail.com wrote: > > I seem to have gone down a rabbit hole. > > > > I want(ed?) to set up ssh on my LAN using certificate authentication, and > > am > > having a lot of trouble finding the information I need

Re: SSH resources, specifically on certificates (certificate authentication)

2022-07-13 Thread Jeremy Ardley
On 14/7/22 6:40 am, Dan Purgert wrote: On Jul 13, 2022, rhkra...@gmail.com wrote: I seem to have gone down a rabbit hole. I want(ed?) to set up ssh on my LAN using certificate authentication, and am having a lot of trouble finding the information I need / would like to have. Which is what, ex

Re: SSH resources, specifically on certificates (certificate authentication)

2022-07-13 Thread Dan Purgert
On Jul 13, 2022, rhkra...@gmail.com wrote: > I seem to have gone down a rabbit hole. > > I want(ed?) to set up ssh on my LAN using certificate authentication, and am > having a lot of trouble finding the information I need / would like to have. Which is what, exactly? Other than the "active mai

SSH resources, specifically on certificates (certificate authentication)

2022-07-13 Thread rhkramer
I seem to have gone down a rabbit hole. I want(ed?) to set up ssh on my LAN using certificate authentication, and am having a lot of trouble finding the information I need / would like to have. I won't go into much detail now, but I didn't realize how big a subject ssh is, and although I'm find