SVN usage

setup, email notification, cvs:
http://www.51testing.com/?uid-75198-action-viewspace-itemid-114376
svn book:
http://svnbook.red-bean.com/

Sendmail problem:
When I use sendmail on ubuntu server, it reports an error 67 (or 66). From the /var/log/mail.log, it says cannot qualify my own hostname. Finally, I found out the /etc/hosts file is not correct. I put the real IP, host name and domain name in that file (not only 127.0.0.1 one). Then it works.