Windows domain account can't create files via samba share, but can do this in linux shell, why?

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http://unix.stackexchange.com – I'm migrating tomcat server from windows to linux (CentOS 6.3 64bit), and want to use samba to share tomcat directory to technical department staffs (windows domain users) with read+write rights. I've setup kerberos & winbind & samba successfully, and did the following permission settings: # add some domain users to local 'tech' group group add --gid 777 tech groupmems --group tech --add liu.yan groupmems --group tech --add MY-DOMAIN\\liu.yan # change owner & mode of tomcat directory chown tomcat:tomcat /var/lib/apache-tomcat-6.0.35 chmod 6755 /var/lib/apache-tomcat-6.0.35 cd /v (HowTos)