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用vsftp自架Linux网络安装服务器,以及Redhat局域网安装的解决办

为了验证局域网网络安装Linux,近两天做了一个实验,目的就是为了写一个比较完整的帖子。

  约定:

  1。本帖操作环境是Redhat 9.0,VSFTPD的版本是Redhat 9.0所带的vsftpd-1.1.3-8.i386.rpm,在安装盘的第三张中

  2。VSFTPD实现的最基本的目的:用系统中存在的真实用户能登入FTP,能用匿名访问。

  3。服务器的IP和和DNS设定

  第一块网卡

  IP:192.168.0.1

  子掩码:255.255.255.0

  网关不设置:

  第二块网卡:

  IP:192.168.0.2

  子掩码:255.255.255.0

  网关不设置

  因为我的操作环境是一个小型的局域网,所以其它的机器的IP都是在192.168.0这个网段上。ADSL是接在服务器的第一个网卡上。服务器的第二个网卡是接集线器,其它的客户机都是接在集线器上。为了能让ADSL访问internet,因为自己手动设置了IP,所以DNS也要自己来设置,DNS如下:

  202.96.134.133

  202.96.168.68

  设置工具是:

  [root@linuxsir001 root]# redhat-config-network

  一。用VSFTP来架设FTP服务器,VSFTP服务器是目前最好的FTP服务器软件,优点是体积小,可定制强,效率高

  1。查看是否安装了vsftpd软件

  [root@linuxsir001 root]# rpm -qa | grep vsftpd

  如果没有任何显示,说明没有把vsftpd安装上,如果出现的是下面的这样的提示,就证明已经安装上了。

  [root@linuxsir001 root]# rpm -qa | grep vsftpd

  vsftpd-1.1.3-8

  我以Redhat 9.0,以其自带的vsftpd包vsftpd-1.1.3-8版本来为本帖约定。

  [root@linuxsir001 root]# rpm -ivh vsftpd*.rpm

  2。打开VSFTP服务器。

  [root@linuxsir001 root]# ntsysv

  把vsftpd服务器打开,也就是在运行 ntsysv命令后,把vsftpd服务选中。

  [*] vsftpd

  3。运行/etc/init.d/vsftpd start

  [root@linuxsir001 root]# /etc/init.d/vsftpd start

  为 vsftpd 启动 vsftpd: [ 确定 ]

  [root@linuxsir001 root]#

  4。配制VSFTP,FVSFTP的运行有两种模式,一种是stardard "initd模式,另外一种是xinetd模式,上面我们所说的就是stardard initd运行模式。两种模式运行机制不是相同的,stardard initd模式,适合专业FTP,且FTP总是一直有人访问,占用资源也是比较大,如果您的FTP总是有人访问和登入。就要用这种模式。如果您的FTP访问人数比较小,建议您用xinetd模式。xinetd模式,是当用户请求时,vsftpd才会启动。

  不同的环境,当然得用不同的启动模式。

  如果想了解更多的,请在本帖后面跟帖,我会慢慢补充xinetd模式,以及虚拟用户如何设置方面的问题。

  1]我们主要把vsftp的配制文件改一下就行了。配制文件在/etc/vsftpd/vsftpd.conf,用您喜欢的编辑器打开。请参考下面的配制文件。

  # Example config file /etc/vsftpd.conf

  #

  # The default compiled in settings are very paranoid. This sample file

  # loosens things up a bit, to make the ftp daemon more usable.

  #

  # Allow anonymous FTP?

  anonymous_enable=YES

  #

  # Uncomment this to allow local users to log in.

  local_enable=YES

  #

  # Uncomment this to enable any form of FTP write command.

  write_enable=YES

  #

  # Default umask for local users is 077. You may wish to change this to 022,

  # if your users expect that (022 is used by most other ftpd's)

  local_umask=022

  #

  # Uncomment this to allow the anonymous FTP user to upload files. This only

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

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

  #anon_upload_enable=YES

  #

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

  # new directories.

  #anon_mkdir_write_enable=YES

  #

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

  # go into a certain directory.

  dirmessage_enable=YES

  #

  # Activate logging of uploads/downloads.

  xferlog_enable=YES

  #

  # Make sure PORT transfer connections originate from port 20 (ftp-data).

  connect_from_port_20=YES

  #

  # If you want, you can arrange for uploaded anonymous files to be owned by

  # a different user. Note! Using "root" for uploaded files is not

  # recommended!

  #chown_uploads=YES

  #chown_username=whoever

  #

  # You may override where the log file goes if you like. The default is shown

  # below.

  #xferlog_file=/var/log/vsftpd.log

  #

  # If you want, you can have your log file in standard ftpd xferlog format

  xferlog_std_format=YES

  #

  # You may change the default value for timing out an idle session.

  #idle_session_timeout=600

  #

  # You may change the default value for timing out a data connection.

  #data_connection_timeout=120

  #

  # It is recommended that you define on your system a unique user which the

  # ftp server can use as a totally isolated and unprivileged user.

  #nopriv_user=ftpsecure

  #

  # Enable this and the server will recognise asynchronous ABOR requests. Not

  # recommended for security (the code is non-trivial). Not enabling it,

  # however, may confuse older FTP clients.

  #async_abor_enable=YES

  #

  # By default the server will pretend to allow ASCII mode but in fact ignore

  # the request. Turn on the below options to have the server actually do ASCII

  # mangling on files when in ASCII mode.

  # Beware that turning on ascii_download_enable enables malicious remote parties

  # to consume your I/O resources, by issuing the command "SIZE /big/file" in

  # ASCII mode.

  # These ASCII options are split into upload and download because you may wish

  # to enable ASCII uploads (to prevent uploaded scripts etc. from breaking),

  # without the DoS risk of SIZE and ASCII downloads. ASCII mangling should be

  # on the client anyway..

  #ascii_upload_enable=YES

  #ascii_download_enable=YES

  #

  # You may fully customise the login banner string:

  #ftpd_banner=Welcome to blah FTP service.

  #

  # You may specify a file of disallowed anonymous e-mail addresses. Apparently

  # useful for combatting certain DoS attacks.

  #deny_email_enable=YES

  # (default follows)

  #banned_email_file=/etc/vsftpd.banned_emails

  #

  # You may specify an explicit list of local users to chroot() to their home

  # directory. If chroot_local_user is YES, then this list becomes a list of

  # users to NOT chroot().

  #chroot_list_enable=YES

  # (default follows)

  #chroot_list_file=/etc/vsftpd.chroot_list

  #

  # You may activate the "-R" option to the builtin ls. This is disabled by

  # default to avoid remote users being able to cause excessive I/O on large

  # sites. However, some broken FTP clients such as "ncftp" and "mirror" assume

  # the presence of the "-R" option, so there is a strong case for enabling it.

  #ls_recurse_enable=YES

  pam_service_name=vsftpd

  userlist_enable=YES

  #enable for standalone
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