Today I learned that to get likewise5 working on ubuntu, you should:
sudo aptitude install likewise-open5 likewise-open5-lsasssudo joe /etc/samba/lwiauthd.conf
add the linewinbind use default domain = yes
so you can login without specifying domain in the domainname slash fashion.sudo joe /etc/sudoersadd%DOMAIN.dns.NAME\\Group^name ALL=(ALL) ALL
at the bottom to allow loginssudo lw-update-dns
registerns the dns name with you logonserver