1、修改/etc/vsftpd/ftpusers和/etc/vsftpd/user_list中关于root的行，注释掉即可； 2、关闭SELinux；如果不想关闭的话，可以打开home项的布林值：setsebool -P ftp_home_dir on 3、查看iptables规则，清空所有规则或添加相关规则以允许vsftpd通过。用root或者其他账号连接ftp，提示：C:\Documents and Settings\zhangxsh.ETHER>ftp 172.20.70.251 Connected to 172.20.70.251. 220 (vsFTPd 2.0.5) User (172.20.70.251:(none)): oracle 331 Please specify the password. Password: 530 Login incorrect. Login failed. ftp> bye查看日志：tail-f/var/log/secure Jul 25 22:34:20 localhost vsftpd: pam_shells(vsftpd:auth): /etc/shells is either world writable or not a normal file Jul 25 22:45:29 localhost vsftpd: pam_listfile(vsftpd:auth): /etc/vsftpd/ftpusers is either world writable or not a normal file Jul 25 22:46:28 localhost vsftpd: pam_listfile(vsftpd:auth): /etc/vsftpd/ftpusers is either world writable or not a normal file可能是文件的授权问题导致：[root@localhost ~]# chmod 644 /etc/shells [root@localhost ~]# chmod 664 /etc/vsftpd/ftpusers [root@localhost ~]# service vsftpd restart重新启动FTP服务后连接正常，设置为777权限后反而不正常
