ftp下载 Linux ubuntu12.04

ftp下载：
apt-get install vsftpd
mkdir /home/myftp
chmod a-w /home/myftp
mkdir /home/myftp/upload
useradd -d /home/myftp -M test
passwd test
输入新密码
确认新密码
vi /etc/vsftpd.conf 
文件最后加上

# Example config file /etc/vsftpd.conf## The default compiled in settings are fairly paranoid. This sample file# loosens things up a bit, to make the ftp daemon more usable.# Please see vsftpd.conf.5 for all compiled in defaults.## READ THIS: This example file is NOT an exhaustive list of vsftpd options.# Please read the vsftpd.conf.5 manual page to get a full idea of vsftpd's# capabilities.### Run standalone?  vsftpd can run either from an inetd or as a standalone# daemon started from an initscript.listen=YES## Run standalone with IPv6?# Like the listen parameter, except vsftpd will listen on an IPv6 socket# instead of an IPv4 one. This parameter and the listen parameter are mutually# exclusive.#listen_ipv6=YES## Allow anonymous FTP? (Beware - allowed by default if you comment this out).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## If enabled, vsftpd will display directory listings with the time# in  your  local  time  zone.  The default is to display GMT. The# times returned by the MDTM FTP command are also affected by this# option.use_localtime=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.# Note that the default log file location is /var/log/xferlog in this case.#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 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## 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 restrict local users to their home directories.  See the FAQ for# the possible risks in this before using chroot_local_user or# chroot_list_enable below.#chroot_local_user=YES## 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().# (Warning! chroot'ing can be very dangerous. If using chroot, make sure that# the user does not have write access to the top level directory within the# chroot)#chroot_local_user=YES#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## Customization## Some of vsftpd's settings don't fit the filesystem layout by# default.## This option should be the name of a directory which is empty.  Also, the# directory should not be writable by the ftp user. This directory is used# as a secure chroot() jail at times vsftpd does not require filesystem# access.secure_chroot_dir=/var/run/vsftpd/empty## This string is the name of the PAM service vsftpd will use.pam_service_name=vsftpd## This option specifies the location of the RSA certificate to use for SSL# encrypted connections.rsa_cert_file=/etc/ssl/private/vsftpd.pem#Allow anonymous FTP?(Disabled by default)anonymous_enable=No#Uncomment this to allow local users to log inlocal_enable=YES#Uncomment this to enable any form of FTP write commandwrite_enable=YESchroot_local_user=YES

rsa_cert_file=/etc/ssl/private/vsftpd.pem
 #Allow anonymous FTP?(Disabled by default)
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

chroot_local_user=YES

然后重启service vsftpd restart

service vsftpd status   看程序运行没有，有vsftpd start/running,则运行