You may get an error when you logged into user account in Linux system,

Could not update .ICEauthority file

You want to check correct permission to .ICEauthority for that user,
# chown username:username /home/user/.ICEauthority

# chmod 644 /home/user/.ICEauthority
# cd  /home/username

# chown  -R username:username  .*

Including you need to check the /home path with 755 permission, or you can set permission using  chmod command
# chmod 755 /home

Once you have updated all the changes reboot (restart) your system.