centos7的vsftpd的安装和配置

安装vsftpd的服务器相关软件

1. 安装vsftpd服务器和客户端
   sudo yum install ftp vsftpd

2. 安装一个加密工具
   sudo yum install libdb-utils.x86_64

配置vsftpd

1. 创建vsftpd的登录用户和主目录
   sudo useradd -d /home/myftp -s /sbin/nologin myftp（myftp是ftp的登录用户，替换成你自己的用户）
2. 修改相应的密码
   passwd myftp，
3. 创建vsftpd虚拟用户
   sudo touch /etc/vsftpd/vftpuser.txt

myftp
myftp 密码

用户2
用户2密码
......

sudo db_load -T -t hash -f /etc/vsftpd/vftpuser.txt /etc/vsftpd/vftpuser.db
4. 添加vsftpd的虚拟用户的验证
sudo vim /etc/pam.d/vsftpd
把account和auth替换了

session    optional     pam_keyinit.so    force revoke
#auth       required    pam_listfile.so item=user sense=deny file=/etc/vsftpd/ftpusers onerr=succeed
#auth       required    pam_shells.so
#auth       include     password-auth
#account    include     password-auth
auth required pam_userdb.so db=/etc/vsftpd/vftpuser
account required pam_userdb.so db=/etc/vsftpd/vftpuser
session    required     pam_loginuid.so
session    include      password-auth

1. 修改vsftpd的配置文件vsftpd.conf
   sudo vim /etc/vsftpd/vsftpd.conf
   下面的文件删除了注释

# 是否运行匿名登录（NO）
anonymous_enable=NO
# 是否允许本地用户登录
local_enable=YES
# 允许ftp的任何写方式
write_enable=YES
# 文件创建只有的权限是755=（777-022）
local_umask=022
# 是否允许匿名用户上传文件
#anon_upload_enable=YES
# 是否允许匿名用户创建文件或者删除文件
#anon_mkdir_write_enable=YES
# 用户进入目录信息提示
dirmessage_enable=YES
# 是否允许vsftp的日志
xferlog_enable=YES
# Make sure PORT transfer connections originate from port 20 (ftp-data).
connect_from_port_20=YES
#
#chown_uploads=YES
#chown_username=whoever
# 日志文件的路径
xferlog_file=/var/log/xferlog
# 日志文件的格式
xferlog_std_format=YES
#
#idle_session_timeout=600
#
#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 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
#
# 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.
# 只监听ipv4的地址
listen=YES
#
# This directive enables listening on IPv6 sockets. By default, listening
# on the IPv6 "any" address (::) will accept connections from both IPv6
# and IPv4 clients. It is not necessary to listen on *both* IPv4 and IPv6
# sockets. If you want that (perhaps because you want to listen on specific
# addresses) then you must run two copies of vsftpd with two configuration
# files.
# Make sure, that one of the listen options is commented !!
#listen_ipv6=YES

pam_service_name=vsftpd
userlist_enable=YES
tcp_wrappers=YES
# 下面是自己添加的
anon_root=/home/pageftp/open
virtual_use_local_privs=YES
guest_enable=YES
guest_username=pageftp
# 虚拟用户的配置文件（可以对每一个虚拟用户进行单独的权限配置）
user_config_dir=/etc/vsftpd/vconf/
chroot_local_user=YES
allow_writeable_chroot=YES

1. 创建虚拟用户的权限配置
   sudo mkdir /etc/vsftpd/vconf/
   touch 用户1 用户2 ……
   vim 用户1

cmds_allowed=ABOR,ACCT,APPE,CWD,CDUP,DELE,HELP,LIST,MODE,MDTM,MKD,NOOP,NLST,PASS,PASV,PORT,PWD,QUIT,REIN,RETR,RMD,RNFR,RNTO,SITE,SIZE
,STOR,STAT,STOU,STRU,SYST,TYPE,USER
write_enable=yes
download_enable=yes
anon_upload_enable=yes
anon_mkdir_write_enable=yes
anon_other_write_enable=yes
anon_world_readable_only=no

1. 启动vsftpd服务
   sudo systemctl enable vsftpd
   sudo service vsftpd start