Vsftpd使用mysql驗證實驗筆記
實驗環境:
操作系統：CentOS 6.5 64位
主機 | IP | 作用 |
mysql.xruan.com | 192.168.0.11 | 用於存儲vsftpd虛擬用戶信息 |
vsftp.xruan.com | 192.168.0.12 | 提供ftp服務 |
實驗步驟：
第1步：安裝vsftpd並測試可用性（在vsftp.xruan.com，192.168.0.12上執行）
[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：安裝mysql-server並創建用戶和表（在mysql.xruan.com，192.168.0.11上執行）
[root@CentOS6lsrv01 ~]# yum install -y mysql-server &> /dev/null
[root@CentOS6lsrv01 ~]# rpm -q mysql-server
mysql-server-5.1.71-1.el6.x86_64
啓動mysqld服務
[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 ]
運行 /usr/bin/mysql_secure_installation 按提示設置好mysql中root用戶密碼，這裏我設置爲“xruan”。
創建數據庫並授予用戶權限
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
創建表
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行用戶信息
Query OK, 1 row affected (0.00 sec)
mysql> insert into users(name,password) values('redhat',password('redhat')); 插入1行用戶信息
Query OK, 1 row affected (0.00 sec)
mysql> FLUSH PRIVILEGES; 刷新權限
Query OK, 0 rows affected (0.00 sec)
第3步：配置vsftpd基於MySQL表的虛擬用戶（在vsftp.xruan.com，192.168.0.12上執行）
首先必須完成基於MySQL表的認證，需要通過pam_mysql模塊實現，先安裝pam_mysql
先安裝epel源
到官方網站下載epel源的rpm安裝包
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認證所需要的配置文件（/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
創建虛擬用戶映射的系統用戶
[root@CentOS6lsrv02 ~]# useradd -r -s /sbin/nologin vuser -d /var/ftproot
[root@CentOS6lsrv02 ~]# mkdir /var/ftproot
[root@CentOS6lsrv02 var]# chown vuser:vuser ftproot
編輯vsftpd配置文件 /etc/vsftpd/vsftpd.conf ，按如下設置：
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
爲每個用戶單獨提供配置文件
user_config_dir=/etc/vsftpd/vusers_config #在主配置文件（/etc/vsftpd/vsftpd.conf）中添加這個選項
[root@CentOS6lsrv02 vsftpd]# mkdir/etc/vsftpd/vusers_config
[root@CentOS6lsrv02 vsftpd]# vi vusers_config/xruan #設置xruan用戶有所有權限
anon_upload_enable=YES
anon_mkdir_write_enable=YES
anon_other_write_enable=YES
[root@CentOS6lsrv02 vsftpd]# vi vusers_config/redhat #設置redhat用戶只有upload權限
anon_upload_enable=YES
重啓vsftpd服務
[root@CentOS6lsrv02 vsftpd]# service vsftpd restart
Shutting down vsftpd: [ OK ]
Starting vsftpd for vsftpd: [ OK ]
第4步：測試
[root@CentOS6lsrv02 vsftpd]# lftp -u xruan 192.168.0.12 <--使用xruan用戶登錄
Password:
lftp [email protected]:~> lcd /etc
lcd ok, local cwd=/etc
lftp [email protected]:/> put fstab <--可以上傳文件
1224 bytes transferred
lftp [email protected]:~> rm fstab
rm ok, `fstab' removed 可以刪除文件
[root@CentOS6lsrv02 vsftpd]# lftp -u redhat 192.168.0.12 <--使用redhat用戶登錄
Password:
lftp [email protected]:~> lcd /etc
lcd ok, local cwd=/etc lftp [email protected]:/>put selinux/config <--可以上傳文件
457 bytes transferred
lftp [email protected]:/> rm config
rm: Access failed: 550 Permission denied.(config) <--不能刪除文件
到此，實驗成功！！！！！