vsftpd 550 Permission denied.

1.vsftpd的匿名用户默认只支持下载权限

[root@localhost /]# ftp 127.0.0.1 测试ftp用匿名用户登陆到本地服务器

Connected to 127.0.0.1.

220 (vsFTPd 2.0.5)

530 Please login with USER and PASS.

530 Please login with USER and PASS.

KERBEROS_V4 rejected as an authentication type

Name (127.0.0.1:root): anonymous

331 Please specify the password.

Password:

230 Login successful.

Remote system type is UNIX.

Using binary mode to transfer files.

ftp>                登陆成功（默认vsftp是开启匿名登录）

 

接下来测试匿名用户上传与下载

 

[root@localhost ~]# touch /var/ftp/pub/test.txt 先在匿名用户下载目录创建一个test.txt文件

[root@localhost /]# cd root

[root@localhost ~]# touch test1.txt  进入根目录创建一个test1.txt文件，作为上传测试

ftp> cd pub

ftp> ls

227 Entering Passive Mode (127,0,0,12,92,5)

150 Here comes the directory listing.

-rw-r--r--    1 0        0               6 Dec 28 14:59 test.txt

226 Directory send OK.

ftp> mget test.txt 下载text.txt

mget test.txt?

227 Entering Passive Mode (127,0,0,12,123,33)

150 Opening BINARY mode data connection for test.txt (6 bytes).

226 File send OK.

6 bytes received in 0.0047 seconds (1.2 Kbytes/s)

ftp> !ls 测试是否下载到本地

anaconda-ks.cfg  install.log  install.log.syslog  test1.txt  test.txt 下载成功

ftp> put test1.txt 上传test1.txt

local: test1.txt remote: test1.txt

200 PORT command successful. Consider using PASV.

550 Permission denied.  请求被拒绝，说明没有上传权限

ftp> delete test.txt

550 Permission denied.  请求被拒绝，说明没有删除权限

 

2.让匿名用户支持上传功能，下载，创建目录文件的权限

 

要实现这个功能，必须做三件事情（测试环境是在关闭selinux情况下）

 

（1）修改/etc/vsftpd/vsftpd.conf---à去掉注释

anon_upload_enable=YES

（2）修改/etc/vsftpd/vsftpd.conf---à去掉注释

anon_mkdir_write_enable=YES

以上两个步骤如下：

 

[root@localhost ~]# vi /etc/vsftpd/vsftpd.conf    

25 # has an effect if the above global write enable is activated. Also, you will

     26 # obviously need to create a directory writable by the FTP user.

     27 anon_upload_enable=YES

     28 #

     29 # Uncomment this if you want the anonymous FTP user to be able to create

     30 # new directories.

     31 anon_mkdir_write_enable=YES

     32 #

     33 # Activate directory messages - messages given to remote users when they

     34 # go into a certain directory.

     35 dirmessage_enable=YES

 

（3）文件系统中FTP匿名用户对某个目录有写权限

 

[root@localhost ~]# cat /etc/passwd |grep ftp

ftp:x:14:50:FTP User:/var/ftp:/sbin/nologinà/var/ftp ftp用户的家目录 /sbin/nologin 不支持系统登录，只能作为虚拟用户用来登录vsftpd

 

创建一个名为put目录，并定义这个文件的所有者为ftp

 

[root@localhost ftp]# mkdir put

[root@localhost ftp]# chown ftp put 修改文件所有者为ftp

[root@localhost ftp]# ll

总计 8

drwxr-xr-x 2 root root 4096 2007-12-13 pub

drwxr-xr-x 2 ftp  root 4096 12-29 18:13 put

 

[root@localhost ftp]#  service vsftpd restart 重启vsftpd服务

关闭vsftpd：                                             [确定]

为vsftpd启动vsftpd：                                     [确定]

 

提示：要想让匿名用户支持删除和更名权限，必须在vsftpd.conf加入以下参数

anon_other_write_enable=YES  允许匿名账号具有删除.更名权限

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