centos7的vsftpd的安装和配置

时间：2023-01-12 16:47:29

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

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