Do you see any authentication failure message in /var/log/secure file? Also you may use pamtester utility to check if you see similar behavior.
# to check sudo profile for user 'user1' pamtester -v sudo 'user1' 'authenticate' http://pamtester.sourceforge.net Get Outlook for Android<https://aka.ms/ghei36> From: Divya Gehlot Sent: Tuesday, August 7, 8:27 PM Subject: Login Failure investigation To: user@drill.apache.org Hi , Appreciate the help on login failure issues . which login configuration should I enable to get the RCA of some of the users login failures ? Thanks, Divya On Tue, 7 Aug 2018 at 16:41, Divya Gehlot wrote: > Hi, > I have distributed drill (6 nodes) connected to AD and some of the users > are able to connect to drill after multiple tries whereas some are able to > connect in first attempt itself . > Can anybody please share the best practice to investigate this kind of > issue ? > > > Thanks, > Divya >