Is it possible to mount CIFS onto Solaris 10 server

smbfs/cifs is not supported on Solaris 10. however, you can use smbclient to access the share from Solaris 10 (this is what we do), with something like :

/usr/sfw/bin/smbclient -m SMB2 -W DOMAIN -U USER%PASSWORD //HOST.DOMAIN/Yoursharename

you can also pass commands to it, with e.g:

/usr/sfw/bin/smbclient -m SMB2 -W DOMAIN -U USER%PASSWORD //HOST.DOMAIN/Yoursharename -c 'cd /folder; dir; exit;'

hope that helps regards,