VSFTPD & IDENT Lookups again

Discussion in 'Installation/Configuration' started by trueshanti, Aug 28, 2006.

  1. trueshanti

    trueshanti New Member

    Hi there,

    i nearly read all discussions on VSFTPD and delayed logins , but still have not solution yet ...

    my problem:

    customers wait about 20 second after ftp-connection to enter their login .. well personaly i dont care , but the ISPConfig's tcpserver starts an ident request to the customers 113-port , waiting for answer,reject or timeout to proceed ..

    so i need a heck to tell the tcpserver to let this be .. since it wraps around vsftpd and vsftpd itself has no options for ident-lookups , i suggest it is the tcpserver itself that performs this lookup

    just to stop proftpd-topic-crossposters: i will stick to vsftpd !! no way for proftpd so far .. depends :- )

    thanks4comment

    best regards

    -c-
     
  2. Ben

    Ben New Member Moderator HowtoForge Supporter ISPConfig Developer

    Well, I had the same problem and solved this with rejecting ident with iptables...
    I use firehol (http://firehol.sf.net) as iptables abstraction, for that I only need that line:

     
  3. trueshanti

    trueshanti New Member

    in my case i run ispconfig on a virtrual-server .. i dont have access to userspace firewalltables :-( .. i think there should be an option in some configfile for the tcp_server ..
     
  4. falko

    falko Super Moderator Howtoforge Staff Moderator HowtoForge Supporter ISPConfig Developer

    What's in your /etc/vsftpd.conf?
     
  5. trueshanti

    trueshanti New Member

    very unoffending config:

    Code:
    # Example config file /etc/vsftpd.conf
    #
    # The default compiled in settings are very paranoid. This sample file
    # loosens things up a bit, to make the ftp daemon more usable.
    #
    # Allow anonymous FTP?
    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=002
    #
    # 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
    #
    anon_umask=002
    #
    #
    #
    # 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/vsftpd.log
    #
    # If you want, you can have your log file in standard ftpd xferlog format
    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 turning on ascii_download_enable enables malicious remote parties
    # to consume your I/O resources, by issuing the command "SIZE /big/file" in
    # ASCII mode.
    # These ASCII options are split into upload and download because you may wish
    # to enable ASCII uploads (to prevent uploaded scripts etc. from breaking),
    # without the DoS risk of SIZE and ASCII downloads. ASCII mangling should be
    # on the client anyway..
    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().
    #chroot_list_enable=YES
    # (default follows)
    #chroot_list_file=/etc/vsftpd/chroot-list
    #
    chroot_local_user=YES
    #
    # 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
    pam_service_name=vsftpd
     
  6. trueshanti

    trueshanti New Member

    i also reject port 113 outgoing now ( to reject ident/auth pavkages ) , but still with login-delay .. :-(
     

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