因为安全方面的原因，root用户是默认不能登录ftp服务的。

如果一定要用root登录，则：

1、删除/etc/vsftpd.ftpusers中的root

2、删除/etc/vsftpd.user_list中的root

3、更改/etc/vsftpd/vsftp.conf中的userlist_enabel=NO

4、service vsftpd start

5、setup设置自启动vsftpd服务

[root@uttflying vsftpd]# ftp 192.168.0.5 Connected to 192.168.0.5. 220 Welcome to blah FTP service. 530 Please login with USER and PASS. 530 Please login with USER and PASS. KERBEROS_V4 rejected as an authentication type Name (192.168.0.5:1): root 331 Please specify the password. Password: 230 Login successful. Remote system type is UNIX. Using binary mode to transfer files. ftp> ll ?Invalid command ftp> ls 227 Entering Passive Mode (192,168,0,5,8,128) 150 Here comes the directory listing. drwxr-xr-x    2 0        0            4096 Nov 05 16:17 2010 drwxr-xr-x    2 0        0            4096 Oct 27 14:27 Desktop drwxr-xr-x    6 500      500          4096 Nov 24 05:24 ExtMail-Solution-Linux-0.2 -rw-r--r--    1 0        0        35689306 Apr 04 2008 ExtMail-Solution-Linux-0.2.tar.gz drwxr-xr-x    2 0        0            4096 Nov 03 14:48 UTT -rw-------    1 0        0             962 Oct 27 14:17 anaconda-ks.cfg -rw-r--r--    1 0        0           35447 Nov 03 16:01 install.bak -rw-r--r--    1 0        0           35447 Oct 27 14:17 install.log -rw-r--r--    1 0        0            4228 Oct 27 14:15 install.log.syslog -rw-r--r--    1 0        0              68 Apr 29 2008 md5sum.es_linux-0.2 -rw-r--r--    1 0        0          599045 Jul 06 2007 mod_jk-1.2.21-apache-2.2.x-linux-i686.so drwxr-xr-x    2 0        0            4096 Nov 03 15:07 myfile drwxr-xr-x    3 0        0            4096 Nov 03 15:25 one -rw-r--r--    1 0        0              24 Nov 20 23:19 test2010.txt -rw-r--r--    1 0        0         1541956 Feb 27 2010 tomcat-connectors-1.2.28-src.tar.gz drwxr-xr-x    3 0        0            4096 Nov 03 15:24 two drwxr-xr-x    5 0        0            4096 Nov 11 17:04 utt drwxr-xr-x    8 1000     1000         4096 Nov 26 20:58 vsftpd-2.0.6 -rw-r--r--    1 0        0          158516 Nov 26 20:54 vsftpd-2.0.6.tar.gz 226 Directory send OK. ftp>