[SSSD-users] Re: offline auth and system upgrades

2020-07-30 Thread xcorvis
I tried the update today... and it worked fine, the cache worked like it was 
supposed to. I did pause at the point when I was prompted to reboot, and I ran 
'id' and 'sudo', and checked that the cache file existed, everything was fine. 
I swear I've been doing upgrades every 6 months for 3 years and this is the 
first time it retained my creds. But hey, it works and that's what's important. 
Thanks again.
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[SSSD-users] Re: offline auth and system upgrades

2020-07-30 Thread xcorvis
I did not know about that tool, that should save me a few steps. I was not 
looking forward to configuring the VPN under another user. Thanks!
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[SSSD-users] Re: offline auth and system upgrades

2020-07-30 Thread xcorvis
If SSSD doesn't do it, then that seems likely. I'll try opening up a bug with 
the ubuntu maintainers after my next upgrade, when I have some more data. 
Thanks!
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[SSSD-users] Re: offline auth and system upgrades

2020-07-30 Thread Lukas Slebodnik
On (29/07/20 15:27), xcor...@gmail.com wrote:
>I've been using sssd + AD to do auth for a few years now. Offline 
>authentication is enabled and works normally. In that time I've upgraded my 
>Ubuntu laptop several times, and each time I noticed that after the update, I 
>cannot log in unless I'm on the corp network with direct access to AD. That 
>hasn't really been a problem until now. I'm working from home over vpn all the 
>time and don't have to option of going in to get on the corp network.
>
>I know the workaround is to use a local account, get on the VPN, authenticate 
>with my AD account and populate the cache, but IT doesn't like me creating 
>local users and it's a pain. I haven't tried the latest update yet (19.10 -> 
>20.04, sssd currently 2.2.0).
>

You can use `sss_seed` to add user to the cache even when you are offline.
https://linux.die.net/man/8/sss_seed

But you need to run as root.

LS
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[SSSD-users] Re: offline auth and system upgrades

2020-07-30 Thread Pavel Březina

On 7/29/20 5:27 PM, xcor...@gmail.com wrote:

I've been using sssd + AD to do auth for a few years now. Offline 
authentication is enabled and works normally. In that time I've upgraded my 
Ubuntu laptop several times, and each time I noticed that after the update, I 
cannot log in unless I'm on the corp network with direct access to AD. That 
hasn't really been a problem until now. I'm working from home over vpn all the 
time and don't have to option of going in to get on the corp network.

I know the workaround is to use a local account, get on the VPN, authenticate with 
my AD account and populate the cache, but IT doesn't like me creating local users 
and it's a pain. I haven't tried the latest update yet (19.10 -> 20.04, sssd 
currently 2.2.0).

Since something in the upgrade process is presumably destroying the cache, I was 
wondering if there's a "nice" way around this? Ubuntu upgrades for sssd seem 
like they're just upgrading sssd via apt, so I'm wondering why these major updates seem 
to operate differently from minor ones, and if that's intentional.


SSSD itself certainly does not destroy any cached content during 
updates. We takes lots of care to keep the cache working. Even if we did 
some incompatible changes in the cache format we just update it first 
time SSSD is run and no data is thrown away.


Is it possible that Ubuntu removes the old cache as part of the upgrade 
process?

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