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VSFTPd自架Linux网络安装服务器

发布时间:2006-04-03 01:46:14来源:红联作者:linux
  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。本帖中vsFTPd运行模式是在standalone模式下运行的,也就是说,本帖中vsFTPd所有的功能都是在standalone模式下运行的。至于有些功能是否能在xinetd模式下运行,您就得测试了,不能照搬照抄。因为有些功能是必须运行在特定的模式下的。
  
  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
  
  相应参考资料:vsFTPd官方文档:
  
  http://www.linuxsir.com/bbs/showthr...;threadid=43451
  
  一。用vsFTPd来架设FTP服务器,vsFTPd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vsFTPd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vsFTPd,vsFTPd的运行有两种模式,一种是standalone "initd"模式,另外一种是xinetd模式,上面我们所说的就是standalone "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vsFTPd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 mode
  listen=YES
  tcp_wrappers=YES
  
  2]更改完配制文件后,我们可以用下面的命令来重启vsFTPd服务器
  
  [root@linuxsir001 root]# /etc/init.d/vsftpd restart
  关闭 vsftpd: [ 确定 ]
  为 vsftpd 启动 vsftpd: [ 确定 ]
  [root@linuxsir001 root]#
  
  3]以匿名方式来访问测试,在text模式下:
  
  注意:在text模式下,要用用户名ftp,密码ftp来访问,这才是在text中匿名访问FTP。看如下的操作:
  
  [root@linuxsir001 root]# ftp 192.168.0.1
  Connected to 192.168.0.1.
  220 (vsFTPd 1.1.3)
  530 Please login with USER and PASS.
  530 Please login
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