第二步：配置incoming子目錄的權限

　　打開proftpd.conf，在和段之間添加如下設置：




　Order allow,deny
　Allow from 10.0.8.
　Deny from all




　　表示在incoming這個子目錄下，從10.0.8這個網段登錄的客戶端有寫入“WRITE”權限，其它人對該目錄的寫如權限都是被禁止的。如果要對所有的用戶開放寫入權限，只要把和之間的內容換成“Allowall“。

四、Ftp服務器相關命令

1、ftpshut:關閉FTP服務，并在/etc下生成文件shutmsg。要重新開放FTP服務，把/etc/shutmsg刪除。
2、ftpcout:Ftp服務器在線人數信息顯示。
3、ftpwho:Ftp服務器在線人員名單。


附錄：Proftpd.conf全文及解釋

# This is a basic ProFTPD configuration file (rename it to
# 'proftpd.conf' for actual use. It establishes a single server
# and a single anonymous login. It assumes that you have a user/group
# "nobody" and "ftp" for normal operation and anon.

ServerName "MY REDHAT LINUX FTP" #設定Ftp服務器的名稱

ServerType standalone #設置FTP以Standalone模式運行，而不是以dameon模式

DefaultServer on #默認Ftp服務器工作

# Port 21 is the standard FTP port.

Port 21 #FTP服務默認占用的端口

# Umask 022 is a good standard umask to prevent new dirs and files

# from being group and world writable.
Umask 022 #默認

RequireValidShell off #保證匿名用戶正常登錄，不要更改

ServerIdent off #不顯示Ftp服務器版本信息，以增強安全性

# To prevent DoS attacks, set the maximum number of child processes
# to 30. If you need to allow more than 30 concurrent connections
# at once, simply increase this value. Note that this ONLY works
# in standalone mode, in inetd mode you should use an inetd server
# that allows you to limit maximum number of processes per service
# (such as xinetd)
MaxInstances 30

# Set the user and group that the server normally runs at.

User nobody #設置FTP服務以nobody運行

Group nobody #注意：原來是“Group nobody”，一定要改為“Group nobody”

# Normally, we want files to be overwriteable.

　AllowOverwrite on


# A basic anonymous configuration, no upload directories.下面一段就是匿名服務的設置。


User ftp #匿名登錄使用ftp用戶

Group ftp #匿名登錄使用ftp組

# We want clients to be able to login with "anonymous" as well as "ftp"

UserAlias anonymous guest #給ftp用戶anonymous的別名，使得anonymous登錄就是ftp用戶登錄。

# Limit the maximum number of anonymous logins

MaxClients 10 #最多10個匿名用戶同時在線

# We want 'welcome.msg' displayed at login, and '.message' displayed

# in each newly chdired directory.

DisplayLogin welcome.msg #登錄FTP顯示的歡迎信息。放在FTP的根目錄下。

DisplayFirstChdir .message

# Limit WRITE everywhere in the anonymous chroot

#說明看正文。


Order allow,deny
Allow from 10.0.8.
Deny from all