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# Allow anonymous FTP? (Beware – allowed by default if you comment this out).
#anonymous_enable=YES
anonymous_enable=NO
設定不允許匿名訪問
#
# Uncomment this to allow local users to log in.
local_enable=YES
設定本地用户可以訪問。注意：主要是為虛擬宿主用户，如果該項目設定為NO那麼所有虛擬用户將無法訪問。
#
# Uncomment this to enable any form of FTP write command.
write_enable=YES
設定可以進行寫操作。
#
# 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
設定上傳後文件的權限掩碼。
#
# 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
anon_upload_enable=NO
禁止匿名用户上傳。
#
# Uncomment this if you want the anonymous FTP user to be able to create
# new directories.
#anon_mkdir_write_enable=YES
anon_mkdir_write_enable=NO
禁止匿名用户建立目錄。
#
# Activate directory messages – messages given to remote users when they
# go into a certain directory.
dirmessage_enable=YES
設定開啓目錄標語功能。
#
# Activate logging of uploads/downloads.
xferlog_enable=YES
設定開啓日誌記錄功能。
#
# Make sure PORT transfer connections originate from port 20 (ftp-data).
connect_from_port_20=YES
設定端口20進行數據連接。
#
# 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_uploads=NO
設定禁止上傳文件更改宿主。
#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
設定Vsftpd的服務日誌保存路徑。注意，該文件默認不存在。必須要手動touch出來，並且由於這裏更改了Vsftpd的服務宿主用户為手動建立的Vsftpd。必須注意給與該用户對日誌的寫入權限，否則服務將啓動失敗。
#
# If you want, you can have your log file in standard ftpd xferlog format
xferlog_std_format=YES
設定日誌使用標準的記錄格式。
#
# You may change the default value for timing out an idle session.
#idle_session_timeout=600
設定空閒連接超時時間，這裏使用默認。將具體數值留給每個具體用户具體指定，當然如果不指定的話，還是使用這裏的默認值600，單位秒。
#
# You may change the default value for timing out a data connection.
#data_connection_timeout=120
設定單次最大連續傳輸時間，這裏使用默認。將具體數值留給每個具體用户具體指定，當然如果不指定的話，還是使用這裏的默認值120，單位秒。
#
# 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
nopriv_user=vsftpd
設定支撐Vsftpd服務的宿主用户為手動建立的Vsftpd用户。注意，一旦做出更改宿主用户後，必須注意一起與該服務相關的讀寫文件的讀寫賦權問題。比如日誌文件就必須給與該用户寫入權限等。
#
# 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
設定支持異步傳輸功能。
#
# 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 on some FTP servers, ASCII support allows a denial of service
# attack (DoS) via the command “SIZE /big/file” in ASCII mode. vsftpd
# predicted this attack and has always been safe, reporting the size of the
# raw file.
# ASCII mangling is a horrible feature of the protocol.
ascii_upload_enable=YES
ascii_download_enable=YES
設定支持ASCII模式的上傳和下載功能。
#
# You may fully customise the login banner string:
ftpd_banner=This Vsftp server supports virtual users ^_^
設定Vsftpd的登陸標語。
#
# 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
chroot_list_enable=NO
禁止用户登出自己的FTP主目錄。
# (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
ls_recurse_enable=NO
禁止用户登陸FTP後使用”ls -R”的命令。該命令會對服務器性能造成巨大開銷。如果該項被允許，那麼擋多用户同時使用該命令時將會對該服務器造成威脅。
# When “listen” directive is enabled, vsftpd runs in standalone mode and
# listens on IPv4 sockets. This directive cannot be used in conjunction
# with the listen_ipv6 directive.
listen=YES
設定該Vsftpd服務工作在StandAlone模式下。順便展開説明一下，所謂StandAlone模式就是該服務擁有自己的守護進程支持，在ps -A命令下我們將可用看到vsftpd的守護進程名。如果不想工作在StandAlone模式下，則可以選擇SuperDaemon模式，在該模式下 vsftpd將沒有自己的守護進程，而是由超級守護進程Xinetd全權代理，與此同時，Vsftp服務的許多功能將得不到實現。
#
# This directive enables listening on IPv6 sockets. To listen on IPv4 and IPv6
# sockets, you must run two copies of vsftpd whith two configuration files.
# Make sure, that one of the listen options is commented !!
#listen_ipv6=YESpam_service_name=vsftpd
設定PAM服務下Vsftpd的驗證配置文件名。因此，PAM驗證將參考/etc/pam.d/下的vsftpd文件配置。
userlist_enable=YES
設定userlist_file中的用户將不得使用FTP。
tcp_wrappers=YES
設定支持TCP Wrappers。#KC: The following entries are added for supporting virtual ftp users.
以下這些是關於Vsftpd虛擬用户支持的重要配置項目。默認Vsftpd.conf中不包含這些設定項目，需要自己手動添加配置。guest_enable=YES
設定啓用虛擬用户功能。
guest_username=overlord
指定虛擬用户的宿主用户。
virtual_use_local_privs=YES
設定虛擬用户的權限符合他們的宿主用户。
user_config_dir=/etc/vsftpd/vconf
設定虛擬用户個人Vsftp的配置文件存放路徑。也就是説，這個被指定的目錄裏，將存放每個Vsftp虛擬用户個性的配置文件，一個需要注意的地方就是這些配置文件名必須和虛擬用户名相同。
本文轉載自http://blog.csdn.net/fafa211/article/details/8095081，在此向原作者致敬。