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Thread: Issues with pure-ftpd

  1. #1

    Question Issues with pure-ftpd

    Hi all,

    I am seting up a FTP server with pure-ftpd. I can login from intern and extern as well.
    Unfortunately the server is located in a DMZ wich is not under my control. I requested that the ports 20-21 and 30000-50000 are being opened.

    nmap shows me the following:

    $ nmap -PN -p 21,20,30000,40000,50000

    Starting Nmap 5.21 ( Nmap - Free Security Scanner For Network Exploration & Security Audits. ) at 2011-04-14 12:24 CEST
    Nmap scan report for (
    Host is up (0.0015s latency).
    20/tcp filtered ftp-data
    21/tcp open ftp
    30000/tcp filtered unknown
    40000/tcp filtered unknown
    50000/tcp filtered iiimsf

    Anyhow, I am loosing the connection as soon I AM loggend in (!!! Means, i CAN login ) ) and e.g. issue a 'ls' and the ftp is entering the passive mode:

    ### SNIP ###

    bash-3.2$ ftp
    Connected to

    220-Welcome to Pure-FTPd.

    220-You are user number 1 of 30 allowed.


    220-Welcome to the Blah Suelz FTP Server!


    220-IPv6 connections are also welcome on this server.

    220 You will be disconnected after 15 minutes of inactivity.

    500 This security scheme is not implemented

    500 This security scheme is not implemented

    KERBEROS_V4 rejected as an authentication type

    Name ( mmarre

    331 User mmarre OK. Password required


    230-User mmarre has group access to: BLAH SUELZ
    230- users

    230 OK. Current directory is /home/mmarre

    Remote system type is UNIX.

    Using binary mode to transfer files.

    ftp> ls

    227 Entering Passive Mode (15x,xxx,xxx,xxx,189,198)

    ftp: connect: Connection timed out

    ### SNIP ###

    WHAT is going wrong here?
    Is that due to the filtered ports? Should they be OPEN?

    Active config:

    grep -v "#" /etc/pure-ftpd/pure-ftpd.conf|uniq

    ChrootEveryone no
    TrustedGID 1000
    BrokenClientsCompatibility no
    MaxClientsNumber 30
    MaxClientsPerIP 3
    VerboseLog no
    AllowDotFiles no
    DisplayDotFiles no
    AnonymousOnly no
    NoAnonymous no
    SyslogFacility ftp
    FortunesFile /etc/motd
    DontResolve yes
    MaxIdleTime 15
    PAMAuthentication yes
    LimitRecursion 2000 8
    AnonymousCanCreateDirs no
    MaxLoad 5
    PassivePortRange 30000 50000
    AntiWarez yes
    Umask 007:007
    MinUID 40
    AllowUserFXP no
    AllowAnonymousFXP no
    ProhibitDotFilesWrite yes
    ProhibitDotFilesRead yes
    AutoRename yes
    AnonymousCantUpload no
    MaxDiskUsage 85
    NoRename yes
    CustomerProof yes

    Any hints?


  2. #2
    Join Date
    Mar 2008
    Bochum, Germany

    Default Re: Issues with pure-ftpd


    please post English questions in the English forums.



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