rsync 远程备份时的问题 求助

我在用rsync做远程备份是出现问题：
在客户端我用rsync -vzrtopg --progress --delete root@192.168.1.19::
www /var/backup/

但客户端运行的结果是：rsync：failed to connect to 192.168.1.19 : Connection refused
rsync error : error in socket IO(code 10) at clientserver.c(97)

我的客户机端和服务端都是把LINUX安装在windows下的虚拟机上，我的
服务器端rsyncd.conf 配置文件的完整内容:
uid = root
gid = root
max connecions=6
[www]
path= /www
comment = BACKUP WWW
ignore errors
read only = yes
list = no
auth users =root
hosts allow =192.168.1.17
secrets file = /etc/wwwuser.pass
[database]
path = /var/lib/mysql
comment = BACKUP DATABASE
ignore errors
read only =yes
list = no
auth users =dbuser
hosts allow =192.168.1.17
secrets file = /etc/dbuser.pass
[conffile]
path =/etc/httpd
comment = BACKUP CONFFILE
ignore errors
read only =yes
list =no
auth users =confuser
hosts allow =192.168.1.17
secrets file =/etc/confuser.pass


客户端自动获取的IP是：192.168.1.17
服务器端自动获取的IP是：192.168.1.19


两机都可以互相Ping对方的IP，可怎么会出错呢？请各位给点意见，不甚感谢~

[ 本帖最后由 Growth兆 于 2007-6-3 21:26 编辑 ]