实验环境:
操作系统：CentOS 6.5 64位
实验步骤：
第1步：安装vsftpd并测试可用性（在vsftp.xruan.com，192.168.0.12上执行）
[root@CentOS6lsrv02 ~]# yum install -y vsftpd
[root@CentOS6lsrv02 ~]# yum install -y lftp
[root@CentOS6lsrv02 ~]# lftp 192.168.0.12
lftp 192.168.0.12:~>
第2步：安装mysql-server并创建用户和表（在mysql.xruan.com，192.168.0.11上执行）
[root@CentOS6lsrv01 ~]# yum install -y mysql-server &> /dev/null
[root@CentOS6lsrv01 ~]# rpm -q mysql-server
mysql-server-5.1.71-1.el6.x86_64
启动mysqld服务
[root@CentOS6lsrv01 ~]# service mysqld start
Initializing MySQL database: WARNING: The host 'CentOS6lsrv01' could notbe looked up with resolveip.
This probably means that your libc libraries arenot 100 % compatible
with this binary MySQL version. The MySQLdaemon, mysqld, should work
normally with the exception that host nameresolving will not work.
This means that you should use IP addressesinstead of hostnames
when specifying MySQL privileges !
Installing MySQL system tables...
OK
Filling help tables...
OK
To start mysqld at boot time you have to copy
support-files/mysql.server to the right placefor your system
PLEASE REMEMBER TO SET A PASSWORD FOR THE MySQLroot USER !
To do so, start the server, then issue thefollowing commands:
/usr/bin/mysqladmin -u root password'new-password'
/usr/bin/mysqladmin -u root -h CentOS6lsrv01password 'new-password'
Alternatively you can run:
/usr/bin/mysql_secure_installation
which will also give you the option of removingthe test
databases and anonymous user created bydefault. This is
strongly recommended for production servers.
See the manual for more instructions.
You can start the MySQL daemon with:
cd /usr ; /usr/bin/mysqld_safe &
You can test the MySQL daemon withmysql-test-run.pl
cd /usr/mysql-test ; perl mysql-test-run.pl
Please report any problems with the/usr/bin/mysqlbug script!
[ OK ]
Starting mysqld: [ OK ]
运行 /usr/bin/mysql_secure_installation 按提示设置好mysql中root用户密码，这里我设置为“xruan”。
创建数据库并授予用户权限
mysql> CREATE DATABASE vsftpd;
Query OK, 1 row affected (0.00 sec)
mysql> GRANT ALL ON vsftpd.* TO vsftpd@'%'IDENTIFIED BY 'passwd';
Query OK, 0 rows affected (0.00 sec)
mysql> use vsftpd
Database changed
创建表
mysql> create table users (
->id int AUTO_INCREMENT NOT NULL,
->name char(20) binary NOT NULL,
->password char(50) binary NOT NULL,
->primary key(id)
->);
Query OK, 0 rows affected (0.02 sec)
mysql> insert into users(name,password) values('xruan',password('xruan')); 插入1行用户信息
Query OK, 1 row affected (0.00 sec)
mysql> insert into users(name,password) values('redhat',password('redhat')); 插入1行用户信息
Query OK, 1 row affected (0.00 sec)
mysql> FLUSH PRIVILEGES; 刷新权限
Query OK, 0 rows affected (0.00 sec)
第3步：配置vsftpd基于MySQL表的虚拟用户（在vsftp.xruan.com，192.168.0.12上执行）
首先必须完成基于MySQL表的认证，需要通过pam_mysql模块实现，先安装pam_mysql
先安装epel源
到官方网站下载epel源的rpm安装包
https://dl.fedoraproject.org/pub/epel/epel-release-latest-6.noarch.rpm
[root@CentOS6lsrv02 ~]# rpm -ivh epel-release-latest-6.noarch.rpm
[root@CentOS6lsrv02 ~]# yum install -y pam_mysql &> /dev/null
[root@CentOS6lsrv02 pam.d]# rpm -q pam_mysql
pam_mysql-0.7-0.12.rc1.el6.x86_64
建立pam认证所需要的配置文件（/etc/pam.d/vsftpd.mysql）
[root@CentOS6lsrv02 ~]# vi /etc/pam.d/vsftpd.mysql
auth required /lib64/security/pam_mysql.souser=vsftpd passwd=passwd host=192.168.0.11 db=vsftpd table=users usercolumn=name passwdcolumn=password crypt=2
account required /lib64/security/pam_mysql.souser=vsftpd passwd=passwd host=192.168.0.11 db=vsftpd table=users usercolumn=name passwdcolumn=password crypt=2
创建虚拟用户映射的系统用户
[root@CentOS6lsrv02 ~]# useradd -r -s /sbin/nologin vuser -d /var/ftproot
[root@CentOS6lsrv02 ~]# mkdir /var/ftproot
[root@CentOS6lsrv02 var]# chown vuser:vuser ftproot
编辑vsftpd配置文件 /etc/vsftpd/vsftpd.conf ，按如下设置：
listen=YES
anonymous_enable=YES
local_enable=YES
write_enable=YES
anon_upload_enable=NO
anon_mkdir_write_enable=NO
chroot_local_user=YES
guest_enable=YES
guest_username=vuser
pam_service_name=vsftpd.mysql
user_config_dir=/etc/vsftpd/vusers_config
为每个用户单独提供配置文件
user_config_dir=/etc/vsftpd/vusers_config #在主配置文件（/etc/vsftpd/vsftpd.conf）中添加这个选项
[root@CentOS6lsrv02 vsftpd]# mkdir/etc/vsftpd/vusers_config
[root@CentOS6lsrv02 vsftpd]# vi vusers_config/xruan #设置xruan用户有所有权限
anon_upload_enable=YES
anon_mkdir_write_enable=YES
anon_other_write_enable=YES
[root@CentOS6lsrv02 vsftpd]# vi vusers_config/redhat #设置redhat用户只有upload权限
anon_upload_enable=YES
重启vsftpd服务
[root@CentOS6lsrv02 vsftpd]# service vsftpd restart
Shutting down vsftpd: [ OK ]
Starting vsftpd for vsftpd: [ OK ]
第4步：测试
[root@CentOS6lsrv02 vsftpd]# lftp -u xruan 192.168.0.12 <--使用xruan用户登录
Password:
lftp [email protected]:~> lcd /etc
lcd ok, local cwd=/etc
lftp [email protected]:/> put fstab <--可以上传文件
1224 bytes transferred
lftp [email protected]:~> rm fstab
rm ok, `fstab' removed 可以删除文件
[root@CentOS6lsrv02 vsftpd]# lftp -u redhat 192.168.0.12 <--使用redhat用户登录
Password:
lftp [email protected]:~> lcd /etc
lcd ok, local cwd=/etc lftp [email protected]:/>put selinux/config <--可以上传文件
457 bytes transferred
lftp [email protected]:/> rm config
rm: Access failed: 550 Permission denied.(config) <--不能删除文件
到此，实验成功！！！！！
