Shulou(Shulou.com)06/02 Report--

Personal blog address http://xgs888.top/post/view?id=94; because the test needs to upload files to the other party's ftp server, needs a test environment, and then tinkered with a ftp server Record the environment centos7 1: check if vsftpd [CPP] view plain copyrpm-Q vsftpd 2: go directly to the installation process [php] view plain copyyum install vsftpd-y 3: start the service [php] view plain copysystemctl start vsftpd.service 4: boot [php] view plain copysystemctl enable vsftpd.service 5: modify the configuration file [php] view plain copyvi / etc/vsftpd/vsftpd.conf post my configuration # 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=YES## Uncomment this to allow local users to log in.# When SELinux is enforcing check for SE bool ftp_home_dirlocal_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 is used by most other ftpd's # 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.# 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# made efforts to find a place to live in chownfields, 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 isa horrible feature of the protocol.ascii_upload_enable=YESascii_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!! # this must be annotated; otherwise the startup will report an error # listen_ipv6=YESpam_service_name=vsftpduserlist_enable=YESuserlist_deny=NOlocal_root=/ftpservertcp_wrappers=YESuse_localtime=YESallow_writeable_chroot=YES6: add user useradd xiaoxie-s / sbin/nologin7: change password passwd xiaoxie and enter password 8: edit user list Vi / etc/vsftpd/user_list9: assign directories and permissions to users mkdir / ftpserverchown-R xiaoxie / ftpserverchmod-R 777 / ftpserver10: close setlinuxvi / etc/selinux/config11: restart service systemctl restart vsftpd.serviceftp login succeeded

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