session opened for user vnc_user by root(uid=0)Mar 17 14:52:11 octave.sh polkitd : Registered Authentication Agent for unix-process:14567:1448779 (system bus name :1.2191  , object path /org/freedesktop/PolicyKit1/AuthenticationAgent, locale zh_CN.UTF-8)Mar 17 14:52:36 octave.sh polkit-agent-helper-1 : pam_unix(polkit-1:auth): authentication failure; logname= uid=1000 euid=0 tty= ruser=root rhost=  user=rootMar 17 14:52:36 octave.sh polki