ProFTPd的安装和配置

一、安装proftpd软件    http://www.proftpd.org下载下来的是一个压缩包

tar zxvf proftpd-1.3.1.tar.gz           进行解压

cd   proftpd-1.3.1            进入文件夹

./configure --prefix=/etc/proftpd       把proftpd-1.3.1安装到/etc/proftpd文件夹下

make

make install

make clean

二、新建用户

groupadd proftp 创建一个proftp组

useradd -g proftp -d /var/ftp/yatan -s /sbin/nologin yatan 这句话我的理解是（新建yatan用户，并把它加入proftp组，把yatan的目录建在/var/ftp目录下，并指定它的shell为nologin，这个nologin并不能让yatan用户进入linux系统

passwd yatan 设置yatan的密码

好了，用户设置好了 ： ）

三、在开始配置proftpd.conf文件之前进行以下操作：

１、因为我用的是红帽子as4.0的，所以先要把自带的vsftpd给停掉

service vsftpd stop 或者直接 rpm Ce vsftpd

２、设置一个proftpd的启动服务

编辑一个启动脚本，

cd      proftpd-1.3.1 进入proftpd-1.3.1的解压文件夹中

cp contrib/dist/rpm/proftpd.init.d /etc/rc.d/init.d/proftpd 拷贝proftpd.init.d到/etc/rc.d/init.d文件夹中，并改名为proftpd

vi /etc/rc.d/init.d/proftpd 编辑这个文件，找到文件中有一行是PATH行，将它改成你所安装proftpd所在的目录。

PATH="$PATH:/etc/proftpd/sbin:/etc/proftpd/bin" 我是安装在/etc/proftpd文件下，保存退出

３、把/etc/rc.d/init.d/proftpd设成可执行文件

chmod +x /etc/rc.d/init.d/proftpd

# 然后运行命令：

[root@localhost /]# chkconfig --level 35 proftpd on

# 则下次系统启动以后，proftpd将自动启动。

chkonfig Cadd proftpd

这样就可以用service proftpd start和service proftpd stop 和service proftpd restart来分别执行开启服务，停止服务与重启服务

差点忘了要改配置文件了，嘻

vi /etc/proftpd/etc/proftpd.conf

在全局配置里把group的值为nogroup改成nobody

好了，配置前的工作做好了

四、现在正式来配置proftpd.conf里的权限设置,

vi /etc/proftpd/etc/proftpd.conf 这是我的配置文件：

# 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                          "ProFTPD Default Installation"

ServerType                          standalone

DefaultServer                          on

# Port 21 is the standard FTP port.

Port                                  21

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

# from being group and world writable.

Umask                                  022

# 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 under which the server will run.

User                                  nobody

Group                                  nobody （这边就是我在上一步所讲的设置成nobody）

# To cause every FTP user to be "jailed" (chrooted) into their home

# directory, uncomment this line.

DefaultRoot ~（阻止用户到其他目录，它们只能呆在自家目录）

# Normally, we want files to be overwriteable.

AllowOverwrite                  on

# Bar use of SITE CHMOD by default

;

    DenyAll

;

# A basic anonymous configuration, no upload directories.    If you do not

# want anonymous users, simply delete this entire ; section.

    User                                  ftp

    Group                                  ftp

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

    UserAlias                          anonymous ftp

    # Limit the maximum number of anonymous logins

    MaxClients                          10

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

    # in each newly chdired directory.

    DisplayLogin                          welcome.msg

    DisplayFirstChdir                  .message

    # Limit WRITE everywhere in the anonymous chroot

      DenyAll

AllowOverwrite on

AllowStoreRestart on

#AllowForeignAddress on

AllowAll

DenyUser yatan

（这几句是对yatan用户的权限限制，只允许它对／var/ftp/yatan有写的权限，不允许它有DELE RNFR RNTO RMD XRMD的权限）

存盘退出

service proftpd restart

五、修改一下／var/ftp目录的权限

chmod CR 775 /var/ftp

这样tc对／var/ftp/skate的文件具有写，删，改，执行的所有权限。

六、成功配置