account required pam_mysql.so user=vsftpdguest passwd=vsftpdguest host=localhost db=vsftpd table =users usercolumn=name passwdcolumn=passwd crypt=2 用wc -l /etc/pam.d/ftp返回值为2行。 3、MYSQL内的数据库配置 # mysql mysql> create database vsftpd;  mysql> use vsftpd;  mysql> create table users(name varchar(20)  binary,passwd varchar(50) binary);  mysql> insert into users (name,passwd) values  ('test',password('123456'));  mysql> grant select on vsftpdvu.users to vsftpdguest@localhost  identified by 'vsftpdguest';  4、测试新建的users表是否正常 mysql -u vsftpdguest -ptest vsftpd  mysql>use vsftpd; mysql>select * from users;  返回结果为test 和加密后的123456 码. 5、登陆测试 app# ftp localhost Trying ::1... ftp: connect to address ::1: Connection refused Trying 127.0.0.1... Connected to localhost. 220 (vsFTPd 2.0.5) Name (localhost:root): test 331 Please specify the password. Password: