Achieve FTP + PAM + MySQL environment, batch configuration virtual users

Achieve FTP + PAM + MySQL environment, batch configuration virtual users

Built environment: CentOS6.5 or CentOS6.7

 [root@vhost3 ~]# uname -a
 Linux vhost3 2.6.32-573.el6.x86_64 #1 SMP Thu Jul 23 15:44:03 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

yum install MySQL, vsftpd

 yum install -y vsftpd mysql-server mysql-devel mysql-libs

Installation pam

Installation dependencies

 yum install -y pam-devel fprintd-pam pam_passwdqc pam

Compile and install pam, suitable for yum install MySQL

 [root@localhost]#wget http://www.huzs.net/soft/vsftpd/pam_mysql-0.7RC1.tar.gz
 [root@localhost]#tar xvf pam_mysql-0.7RC1.tar.gz
 [root@localhost]#cd pam_mysql-0.7RC1
 [root@localhost]# ./configure --with-openssl --with-pam-mods-dir=/lib/security/
 [root@localhost]# make && make install

After installation, the following two documents will generate

 /lib/security/pam_mysql.la  /lib/security/pam_mysql.so

Vsftpd modify profile (Reference)

 anonymous_enable=NO
 local_enable=YES
 write_enable=YES
 local_umask=022
 dirmessage_enable=YES
 xferlog_enable=YES
 connect_from_port_20=YES
 xferlog_std_format=YES
 listen=YES
 pam_service_name=kdui_ftp        # pam认证的配置文件
 userlist_enable=YES
 tcp_wrappers=YES
 guest_enable=YES    # 启用虚拟用户
 guest_username=kdui_ftp        # 虚拟用户的权限是寄宿在操作系统的kdui_ftp这个用户上的，这个用户必须真实存在
 local_root=/home/dms/kdui/dmsdata/userBase/$USER    #指定用户登录的家目录，$USER是内置变量，表示用户名
 user_sub_token=$USER
 virtual_use_local_privs=YES
 xferlog_file=/var/log/xferlog
 dual_log_enable=YES
 vsftpd_log_file=/var/log/vsftpd
 user_config_dir=/etc/vsftpd/user_config        #每个虚拟用户的独立配置文件目录，配置文件和用户同名

Configure the system environment, according to vsftpd configuration file

Create a home directory of the host account

 [root@localhost]#mkdir -p /home/dms/kdui/dmsdata/

Create a virtual host user accounts

 [root@localhost]# useradd -s /sbin/nologin -d /home/dms/kdui/dmsdata/userBase/ kdui_ftp

Create a virtual user profile directory, (according to the above configuration file can not be created)

[root@localhost]# mkdir -p /etc/vsftpd/user_config

Modify pam authentication file

[root@localhost]# vim /etc/pam.d/kdui_ftp 
 #%PAM-1.0
 session       optional        pam_keyinit.so       force revoke
 auth required /lib/security/pam_mysql.so user=ftp passwd=123456 host=localhost db=ftp table=ftpuser usercolumn=username passwdcolumn=password crypt=0
 account required /lib/security/pam_mysql.so user=ftp passwd=123456 host=localhost db=ftp table=ftpuser usercolumn=username passwdcolumn=password crypt=0
 #            调用的模块        数据库用户名    密码      IP         库名    表名      哪个字段作为用户名   哪个字段作为密码
 # crypt表示密码是否加密以及加密方式，0表示明文，1表示使用UNIX的DES加密，2表示使用MySQL的password()函数，3表示口令使用MD5加密

Configure MySQL database

Start the database

[root@localhost]# /etc/init.d/mysqld start

#Connect to the database

[root@localhost]# mysql -uroot

# Building a database

 mysql> CREATE DATABASE IF NOT EXISTS `ftp` ;
  mysql> use ftp;

# Build the table

 mysql> CREATE TABLE IF NOT EXISTS `ftpuser` (
   `id` int(6) NOT NULL AUTO_INCREMENT,
   `username` varchar(20) NOT NULL,
   `password` varchar(20) NOT NULL,
   `status` int(1) NOT NULL DEFAULT '1',
   `level` int(1) NOT NULL DEFAULT '1',
   PRIMARY KEY (`id`)
   ) ENGINE=MyISAM  DEFAULT CHARSET=utf8 AUTO_INCREMENT=2 ;

Insert two virtual user data i.e. ftp

mysql> INSERT INTO `ftpuser` (`username`, `password`) VALUES ( 'aaa', '123');
mysql> INSERT INTO `ftpuser` (`username`, `password`) VALUES ( 'bbb', '456');

Pam verify authorized use mysql account

mysql>  grant select on ftp.ftpuser to ftp@localhost identified by '123456';
 mysql> FLUSH PRIVILEGES;
mysql>  quit;

Start ftp

[root@loaclhost]#/etc/init.d/vsftpd start