Cannot login if using NIS mode "compat" for authentication

Bug #1407621 reported by Dominik Alexander Klein
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Light Display Manager
New
Undecided
Unassigned

Bug Description

From /var/log/auth.log I could see that LightDM does not remove the "+" in front of the username from /etc/passwd, which in NIS compat mode is syntax for a network identification based account. Consequently, the login is refused with "bad username". However, in the graphical login screen it says password incorrect, which is also wrong and misleading.

I'm using Kubuntu 14.04. A workaround for me was to login on console (CTRL+Alt+F1) and install kdm as a replacement for LightDM.

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