I have a windows server and all the clients are linux based(ubuntu 11.10),i want to set up group/domain policy on my network.
Please suggest anything other than likewise-open policy. How to apply group policy in local machine?
You can use LDAP Authentication for setting users and policies for those users,
For more information check this
you can provide group policy in local machine using LDAP authentication
You really need a third party solution to apply Win GPs to an Ubuntu system. Free solutions like Likewise Open and Centrify Express will apply the domain policies (e.g. enforce password policies, like after X invalid attempts lock out the AD account), but if you want a solution that for example does Gnome desktop configuration, you will need to go with a commercial solution such as Centrify DirectControl that can do Linux desktop lockdown via GPOs just like you would lock down a Windows desktop using GPOs, e.g. http://www.centrify.com/directcontrol/group-policy-for-linux-desktops.asp
Hope this helps