阿里云ECS CentOS7.3 vsftpd 安装、配置、卸载
一、卸载 1、查看当前服务器中的vsftpd rpm -qa|grep vsftpd 例如结果为：vsftpd-2.2.2-13.el6_6.1.x86_64 2、执行卸载 rpm -e vsftpd-2.2.2-13.el6_6.1.x86_64 返回：卸载时自动备份vsftp的用户列表文件 warning: /etc/vsftpd/vsftpd.conf saved as /etc/vsftpd/vsftpd.conf.rpmsave warning: /etc/vsftpd/user_list saved as /etc/vsftpd/user_list.rpmsave 3、删除遗留的文件 rm -rf /etc/vsftpd 二、安装 yum -y install vsftpd 三、配置 1、修改配置文件，/etc/vsftpd/vsftpd.conf，可以整个覆盖 # 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 # # Uncomment this to enable any form of FTP write command. write_enable=YES # allow_writeable_chroot=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. # 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=YES userlist_deny=NO #这个是ftp根目录，根据你自己的情况配置 local_root=/var/ftp tcp_wrappers=YES use_localtime=YES 2、增加FTP账户 useradd ftpadmin -s /sbin/nologin 给ftpadmin设置密码 passwd ftpadmin 输入两遍密码即可 2.1、如果出现useradd: user 'ftpadmin' already exists，说明用户已经存在，需要先删除，否则还可能登陆不了。 删除用户 userdel ftpadmin 查找遗留的文件和目录 find / -name ftpadmin 例如出来结果： /var/spool/mail/ftpadmin /home/ftpadmin 哪个要删，哪个不要删，看清楚目录再删除，谨慎使用删除命令，否则遗憾多久就不知道了 rm -rf /var/spool/mail/ftpadmin rm -rf /home/ftpadmin 3、修改/etc/vsftpd/user_list文件，最后一行添加刚才创建的用户名ftpadmin，也可以整个覆盖 # vsftpd userlist # If userlist_deny=NO, only allow users in this file # If userlist_deny=YES (default), never allow users in this file, and # do not even prompt for a password. # Note that the default vsftpd pam config also checks /etc/vsftpd/ftpusers # for users that are denied. root bin daemon adm lp sync shutdown halt mail news uucp operator games nobody #这个就是刚才创建的那个，根据你自己的情况来 ftpadmin 4、创建FTP根目录 mkdir /var/ftp 如果上述目录已经存在，只需要修改权限即可 chown -R ftpadmin /var/ftp chmod -R 755 /var/ftp 5、设置开机启动 chkconfig --level 35 vsftpd on 到此，安装配置完毕，重新启动vsftpd服务 service vsftpd restart 就可以使用FlashFXPE或者FileZilla登陆FTP了。 下面以FileZilla为例，看图片
