Я потратил на это очень много времени, и вчера вечером он работал. Пришел на работу сегодня утром, и он перестал работать (я единственный ИТ-служба поддержки, и я не вносил никаких изменений).
Я настроил свой брандмауэр на aws, как показано на рисунке ниже.
образ конфигурации AWS брандмауэра
Сервер представляет собой сервер bitnami / ubuntu, размещенный на aws.
Я настроил vsftpd.conf, как показано ниже
# Example config file /etc/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. # # # Run standalone? vsftpd can run either from an inetd or as a standalone # daemon started from an initscript. listen=NO #Passive Settings #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. listen_ipv6=YES # # Allow anonymous FTP? (Disabled by default). anonymous_enable=NO # # Uncomment this to allow local users to log in. local_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, # 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. #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 # # If enabled, vsftpd will display directory listings with the time # in your local time zone. The default is to display GMT. The # times returned by the MDTM FTP command are also affected by this # option. use_localtime=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/vsftpd.log # # 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 restrict local users to their home directories. See the FAQ for # the possible risks in this before using chroot_local_user or # chroot_list_enable below. #chroot_local_user=YES # # 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 # # Customization # # Some of vsftpd's settings don't fit the filesystem layout by # default. # # This option should be the name of a directory which is empty. Also, the # directory should not be writable by the ftp user. This directory is used # as a secure chroot() jail at times vsftpd does not require filesystem # access. secure_chroot_dir=/var/run/vsftpd/empty # # This string is the name of the PAM service vsftpd will use. pam_service_name=ftp # # This option specifies the location of the RSA certificate to use for SSL # encrypted connections. rsa_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem rsa_private_key_file=/etc/ssl/private/ssl-cert-snakeoil.key ssl_enable=NO # # Uncomment this to indicate that vsftpd use a utf8 filesystem. #utf8_filesystem=YES #user restriction userlist_file=/etc/vsftpd.userlist userlist_enable=YES userlist_deny=NO # passive/active mode configuration #port_enable=YES pasv_enable=YES pasv_min_port=1200 pasv_max_port=1250 pasv_address=xx.xx.xx.xx # if pasv_address_resolve=YES, pasv_address should be a name, e.g. ftp.blah.com #pasv_addr_resolve=YES seccomp_sandbox=NO
Вот что он отображает в filezilla:
Status: Connecting to xx.xx.xx.xx:21... Status: Connection established, waiting for welcome message... Status: Server does not support non-ASCII characters. Status: Logged in Status: Retrieving directory listing... Command: PWD Response: 257 "/home/username" is the current directory Command: TYPE I Response: 200 Switching to Binary mode. Command: PASV Error: Could not read from socket: ECONNRESET - Connection reset by peer Error: Disconnected from server Error: Failed to retrieve directory listing
Вывод из командной строки:
bitnami@ip-xx.xx.xx.xx:~$ sudo ftp localhost Connected to localhost. 220 (vsFTPd 3.0.3) Name (localhost:bitnami): username 331 Please specify the password. Password: 230 Login successful. Remote system type is UNIX. Using binary mode to transfer files. ftp> ls 200 PORT command successful. Consider using PASV. 150 Here comes the directory listing. -rw-rw-r-- 1 1002 1004 415 Feb 08 15:30 1 226 Directory send OK. ftp> passive Passive mode on. ftp> ls 227 Entering Passive Mode (0,0,0,0,4,224). 150 Here comes the directory listing. -rw-rw-r-- 1 1002 1004 415 Feb 08 15:30 1 226 Directory send OK. ftp> exit 221 Goodbye. bitnami@ip-xx.xx.xx.xx:~$
Я был бы очень признателен за любую помощь, так как я очень смущен.
Он работает в активном режиме, но третьи стороны могут использовать ftp только в пассивном режиме, поэтому он мне нужен для этого.
Заранее спасибо!
Настроить pasv_address
(и pasv_addr_resolve
параметры:
pasv_address
Используйте эту опцию, чтобы переопределить IP-адрес, который vsftpd будет объявлять в ответ на команду PASV. Укажите числовой IP-адрес, если не включен параметр pasv_addr_resolve. В этом случае вы можете указать имя хоста, которое будет разрешено DNS при запуске.
По умолчанию: (нет - адрес берется из входящего подключенного сокета)
pasv_addr_resolve
Установите YES, если вы хотите использовать имя хоста (в отличие от IP-адреса) в опции pasv_address.
По умолчанию: НЕТ
(Из http://vsftpd.beasts.org/vsftpd_conf.html)
На прошлой неделе я занимался именно этой проблемой. Симптомы:
0,0,0,0
в журналахНастройка pasv_address
на IP-адрес или на полное доменное имя при настройке passv_addr_resolve
к yes
решает эту проблему, поскольку позволяет клиенту подключаться к нужному месту назначения.