如何控制AIX中目录的ftp访问权限

当我们想要将一个目录设置为ftp只读或ftp只写时，我们可以借助/etc/ftpaccess.ctl文件来实现这种权限控制。

一、设置一个目录为ftp只读

1. 编辑/etc/ftpaccess.ctl，加入如下一行：

readonly: /test

2. ftp连接服务器进行读取传输，成功

HA_node2@/>ftp 172.16.18.13

Connected to 172.16.18.13.

220 DumpServer FTP server (Version 4.2 Fri Feb 3 22:13:23 CST 2006) ready.

Name (172.16.18.13:root): root

331 Password required for root.

Password:

230-Last unsuccessful login: Tue May 13 08:44:37 2008 on /dev/pts/1 from 9.181.50.139

230-Last login: Tue May 13 10:45:06 2008 on ftp from ::ffff:9.181.50.246

230 User root logged in.

ftp>cd /test

250 CWD command successful.

ftp>lcd /test

Local directory now /test

ftp>dir

200 PORT command successful.

150 Opening data connection for /bin/ls.

total 29472

-rw-r--r-- 1 root system 7539356 Apr 24 19:42 trace.r

-rw-rw-rw- 1 root system 880640 Apr 24 19:41 trace.raw

-rw-rw-rw- 1 root system 1158232 Apr 24 19:41 trace.raw-0

-rw-rw-rw- 1 root system 1059928 Apr 24 19:41 trace.raw-2

-rw-rw-rw- 1 root system 1050952 Apr 24 19:41 trace.raw-3

-rw-rw-rw- 1 root system 1195440 Apr 24 19:41 trace.raw-4

-rw-rw-rw- 1 root system 2196288 Apr 24 19:41 trace.raw-5

226 Transfer complete.

ftp>bin

200 Type set to I.

ftp>get trace.raw

200 PORT command successful.

150 Opening data connection for trace.raw (880640 bytes).

226 Transfer complete.

880852 bytes received in 0.08342 seconds (1.031e+04 Kbytes/s)

local: trace.raw remote: trace.raw

3.进行写入传输，则遭遇报错

ftp>bin

200 Type set to I.

ftp>put trace.raw-1

200 PORT command successful.

550 Write access denied

二、设置一个目录为ftp只写

1. 编辑/etc/ftpaccess.ctl，加入如下一行：

writeonly: /test

2. ftp连接服务器进行读取传输，则遭遇报错

HA_node2@/>ftp 172.16.18.13

Connected to 172.16.18.13.

220 DumpServer FTP server (Version 4.2 Fri Feb 3 22:13:23 CST 2006) ready.

Name (172.16.18.13:root): root

331 Password required for root.

Password:

230-Last unsuccessful login: Tue May 13 08:44:37 2008 on /dev/pts/1 from 9.181.50.139

230-Last login: Tue May 13 15:45:37 2008 on ftp from ::ffff:172.16.18.11

230 User root logged in.

ftp>cd /test

250 CWD command successful.

ftp>lcd /test

Local directory now /test

ftp>dir

200 PORT command successful.

150 Opening data connection for /bin/ls.

total 29472

-rw-r--r-- 1 root system 7539356 Apr 24 19:42 trace.r

-rw-rw-rw- 1 root system 880640 Apr 24 19:41 trace.raw

-rw-rw-rw- 1 root system 1158232 Apr 24 19:41 trace.raw-0

-rw-rw-rw- 1 root system 1059928 Apr 24 19:41 trace.raw-2

-rw-rw-rw- 1 root system 1050952 Apr 24 19:41 trace.raw-3

-rw-rw-rw- 1 root system 1195440 Apr 24 19:41 trace.raw-4

-rw-rw-rw- 1 root system 2196288 Apr 24 19:41 trace.raw-5

226 Transfer complete.

ftp>bin

200 Type set to I.

ftp>get trace.raw-2

200 PORT command successful.

550 Read access denied

3.进行写入传输，成功

ftp>bin

200 Type set to I.

ftp>put trace.raw-1

200 PORT command successful.

150 Opening data connection for trace.raw-1.

226 Transfer complete.

880640 bytes sent in 0.07938 seconds (1.083e+04 Kbytes/s)

local: trace.raw-1 remote: trace.raw-1

ftp>dir

200 PORT command successful.

150 Opening data connection for /bin/ls.

total 31192

-rw-r--r-- 1 root system 7539356 Apr 24 19:42 trace.r

-rw-rw-rw- 1 root system 880640 Apr 24 19:41 trace.raw

-rw-rw-rw- 1 root system 1158232 Apr 24 19:41 trace.raw-0

-rw-r----- 1 root system 880640 May 13 15:53 trace.raw-1

-rw-rw-rw- 1 root system 1059928 Apr 24 19:41 trace.raw-2

-rw-rw-rw- 1 root system 1050952 Apr 24 19:41 trace.raw-3

-rw-rw-rw- 1 root system 1195440 Apr 24 19:41 trace.raw-4

-rw-rw-rw- 1 root system 2196288 Apr 24 19:41 trace.raw-5

226 Transfer complete.

被别人修改了。

1、aix磁盘中"chown"和"chgrp"命令用于改变所有者和组。只有"根"用户才能改变文件的所有者。

2、"根"用户或文件的拥有者可以改变这个文件的组。

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