离线安装vsftpd

 1.查看自己服务器有没有安装vsftpd

rpm -qa |grep vsftpd

centos离线安装postgresql12 centos离线安装ftp_ci

 上图是有安装ftp服务器,若没有则什么都不显示。

2.下载vsftpd的RPM包并安装

centos7.9服务器下载服务包地址:Index of /centos/7.9.2009/os/x86_64/Packages/

centos离线安装postgresql12 centos离线安装ftp_ci_02

3.上传安装包到服务器,放在安装目录,比如/home/ 下。

4.若没有安装ftp,则在安装包目录执行命令 rpm -Uvh vsftpd-3.0.2-28.el7.x86_64.rpm

5.安装文件目录下,修改配置文件:
cd /etc/vsftpd/

# Example config file /etc/vsftpd/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.
#
# Allow anonymous FTP? (Beware - allowed by default if you comment this out).
anonymous_enable=NO
#
# Uncomment this to allow local users to log in.
# When SELinux is enforcing check for SE bool ftp_home_dir
local_enable=YES
#
userlist_deny=NO
# 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=077
#
# 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.
# When SELinux is enforcing check for SE bool allow_ftpd_anon_write, allow_ftpd_full_access
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
#
# 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/xferlog
#
# 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 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.
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=NO
tcp_wrappers=YES
pasv_enable=YES
#避免出现 vsftpd:500 OOPS: vsftpd: refusing to run with writable root inside chroot ()
allow_writeable_chroot=YES
 
#被动模式最小端口号30000
 
pasv_min_port=30000
 
#被动模式最大端口号31000
 
pasv_max_port=31000

6:服务启动:systemctl start vsftpd 重启:systemctl restart vsftpd

7.修改selinux配置文件(vi /etc/selinux/config)

 SELINUX=disabled   //需要重启服务器才能生效。

8.注意,如果你是云服务器,还需要配置iptables。此处忽略。

分配ftp用户

1.在root用户下

2.新增用户:useradd -d /usr/local/nginx/html/picture ftpuser

3.设置密码:passwd ftpuser  (此处回车)  //为ftpuser设置密码 ,重设密码也是如此

4.限定用户不能telnet,只能ftp: usermod -s /sbin/nologin //可设置可不设置

5.用户恢复正常:usermod -s /sbin/bash ftpuser

7.设置 /usr/local/nginx/html/picture 目录的owner为ftpuser用户 chown -R ftpuser /usr/local/nginx/html/picture

8.设置 /usr/local/nginx/html/picture 目录的权限为777, 也就是

chmod -R 777 /usr/local/nginx/html/picture

9.重启:systemctl restart vsftpd.service

安装ftp

空白机是没有ftp的,不支持ftp命令

安装ftp,根据上边的下载地址,找到文件,上传到服务器。

centos离线安装postgresql12 centos离线安装ftp_nginx_03

 rpm -ivh ftp-0.17-67.el7.x86_64.rpm

centos离线安装postgresql12 centos离线安装ftp_html_04

 进入ftp下

ftp 192.168.180.2 21     输入你的ip 和对应端口号

再输入账号和密码

centos离线安装postgresql12 centos离线安装ftp_html_05

 这样说明就可以正常使用了

使用FileZilla连接

centos离线安装postgresql12 centos离线安装ftp_ftp_06

上传文件

centos离线安装postgresql12 centos离线安装ftp_html_07

修改nginx配置

因为文件权限已经改变,访问nginx根目录html下的picture的1.png,会出现403

修改nginx.conf

把第一行  #user  nobody;  改为 user  root;

就可以了

centos离线安装postgresql12 centos离线安装ftp_html_08

存在的异常:

500 OOPS: vsftpd: refusing to run with writable root inside chroot ()

从2.3.5之后,vsftpd增强了安全检查,如果用户被限定在了其主目录下,则该用户的主目录不能再具有写权限了!如果检查发现还有写权限,就会报该错误。

allow_writeable_chroot=YES

配置文件已经加入

FTP 550 Failed to change directory

1.文件没有权限

2.SELINUX=disabled 没有变成disabled 

getenforce  可查看SELINUX状态

另一种解决办法不改变SELINUX状态

getsebool -a | grep ftp

centos离线安装postgresql12 centos离线安装ftp_html_09

setsebool -P allow_ftpd_full_access on

setsebool -P ftp_home_dir on

开启这俩个允许外网访问

3.防火墙端口没有开放