HTTP setup for accessing subversion

Install modules mod_dav_svn.so mod_authz_svn.so
and make the following change in your httpd.conf

      DAV svn
      SVNPath /path/to/svn
      AuthType Basic
      AuthName "Your Subversion"
      AuthUserFile /path/to/htpasswd
      Require valid-user

Note: For further security you can have this location accessible only through SSL by using virtual host directive.