linux中配置ftp-vsftp

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来源：http://hi.baidu.com/coolzdplinux/blog/item/83ece486621cfa3f67096e55.html
linux中配置ftp-vsftp

　　以前一直都用windows系统,简单易懂. 现在突然使用linux服务器,而且主管要求不可以直接操作,因为今后它也是要进机房的,必须练习在远程用命令操作它.几天下来,从安装到配置把我这个新 手折磨的不行.其中配置ftp用的时间最长.做好以后仔细的总结一下变成文档,以备后患.
利用unix自带工具—vsftp，创建一个不允许匿名访问的ftp，实现上传下载文件的功能，并且指定名用户username可以登陆,限制访问人数。
　　1． 启动vsftpd
　　# /etc/init.d/vsftpd start
　　2． 创建系统用户
　　# adduser username -d /home/username
　　给用户设置密码
　　# passwd username
　　
3． 编辑/etc/vsftpd/vsftpd.conf文件
　　# vi /etc/vsftpd/vsftpd.conf
　　
# Allow anonymous FTP?
　　anonymous_enable=NO
　　
　　# 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=NO
　　
　　# 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=username
　　# 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
　　
　　# 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 fate8866 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
　　
　　# If enabled, vsftpd will load a list of usernames, from the filename given by userlist_file. If a
　　user tries to log in using a name in this file, they will be denied before they are asked
　　for a password.
　　userlist_enable=YES
　　
　　# If you set this setting to NO, then users will be denied login unless they are explicitly listed in the file specified by userlist_file. When login is denied, the denial is issued before the user is asked for a password.
　　userlist_deny=NO
　　
　　#enable for standalone mode
　　listen=YES
　　
　　tcp_wrappers=YES
　　
　　max_clients=5
　　
　　4. 将用户名username填入user_list文件，并且把其他用户名全部删除。
　　# vi user_list
　　
　　5. 重新启动vsftp
　　# /etc/init.d/vsftpd restart