Moved to OES11 server

Hello everone,

After moving to OES11, our tree contains a lot of user.
Can someone shine some light on which users can be removed ?

eGuidePublicUser30248
eGuidePublicUser8190
linux-oesadmin ( Think I need this one )
OESCommonProxy_linuxoes ( Think I need this one too)
NFAUUser
novlxregd
novlxsrvd
wwwrun

Thanks, Stephan