Linux
無法連接到本地 VSFTP 伺服器
我剛剛在我的 Ubuntu 10.04 伺服器上安裝了 VSFTP:
apt-get install vsftp
當然,它創建了一個新
ftp
使用者,其主目錄為/srv/ftp
. 我不知道此帳戶的自動生成密碼是什麼,所以我將其更改為passwd ftp
我用 重新啟動伺服器
reboot vsftpd
,並嘗試使用 連接lftp
,但是每當我嘗試發出命令時,它都會因登錄錯誤而失敗,基本上我的使用者名和密碼不起作用。這是我的/etc/vsftpd.conf
文件:# 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=YES # # Run standalone with IPv6? # Like the listen parameter, except vsftpd will listen on an IPv6 socket # instead of an IPv4 one. This parameter and the listen parameter are mutually # exclusive. #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(). #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 # # Debian customization # # Some of vsftpd's settings don't fit the Debian filesystem layout by # default. These settings are more Debian-friendly. # # 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=vsftpd # # This option specifies the location of the RSA certificate to use for SSL # encrypted connections. rsa_cert_file=/etc/ssl/private/vsftpd.pem
我究竟做錯了什麼?我只需要為我的伺服器啟用 FTP 訪問。這是我的日誌:
Sun Aug 7 21:14:39 2011 [pid 2] CONNECT: Client "127.0.0.1" Sun Aug 7 21:14:41 2011 [pid 1] [anonymous] FAIL LOGIN: Client "127.0.0.1" Sun Aug 7 21:15:25 2011 [pid 2] CONNECT: Client "127.0.0.1" Sun Aug 7 21:15:27 2011 [pid 1] [ftp] FAIL LOGIN: Client "127.0.0.1" Sun Aug 7 21:15:50 2011 [pid 2] CONNECT: Client "127.0.0.1" Sun Aug 7 21:15:52 2011 [pid 1] [ftp] FAIL LOGIN: Client "127.0.0.1" Sun Aug 7 21:17:13 2011 [pid 2] CONNECT: Client "127.0.0.1" Sun Aug 7 21:17:15 2011 [pid 1] [ftp] FAIL LOGIN: Client "127.0.0.1" Sun Aug 7 21:20:50 2011 [pid 2] CONNECT: Client "127.0.0.1" Sun Aug 7 21:20:52 2011 [pid 1] [ftp] FAIL LOGIN: Client "127.0.0.1" Sun Aug 7 21:24:22 2011 [pid 2] CONNECT: Client "127.0.0.1" Sun Aug 7 21:24:24 2011 [pid 1] [ubuntu] FAIL LOGIN: Client "127.0.0.1"
請不要使用“ftp”登錄。使用您的 Ubuntu 使用者名和密碼登錄。任何本地創建的使用者都可以訪問伺服器。但不是ftp。通常
/etc/passwd
,UID 大於或等於 1000 的所有使用者都應該能夠登錄。其他 PAM 限制可能會阻止您登錄,但這不太可能,除非您明確修改 PAM。