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    Hi, Problem accesing FTP behind pfsense firewall

    Scheduled Pinned Locked Moved Firewalling
    46 Posts 5 Posters 17.8k Views
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    • KOMK
      KOM
      last edited by

      For Dest. addr, you need to put the WAN IP address of the server, so 213.8.246.209 in your case.

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      • D
        dvirshiber
        last edited by

        well , i did it , and even delete the 1:1 NAT (now that i understand i dont need it)

        now the clients can access the ftp and succesfuly LOG ON , but cant do any command like LIST, PUT …

        do you think Is it still something with my ftp server?

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        • KOMK
          KOM
          last edited by

          now the clients can access the ftp and succesfuly LOG ON

          Making progress…

          do you think Is it still something with my ftp server?

          Perhaps.  Check your logs.  Anything in your pfSense Firewall log?  Anything in your FTP server log?

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          • johnpozJ
            johnpoz LAYER 8 Global Moderator
            last edited by

            well you passive ports sure and the hell are not UDP??  Are you sure ftp server is handing out your PUBLIC IP and not its private?  If you send me a login I will validate what server is sending for IP and port when i try and do a passive connection.

            An intelligent man is sometimes forced to be drunk to spend time with his fools
            If you get confused: Listen to the Music Play
            Please don't Chat/PM me for help, unless mod related
            SG-4860 24.11 | Lab VMs 2.8, 24.11

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            • D
              dvirshiber
              last edited by

              wait a sec…

              After i deleted the 1:1 NAT (follow by KOM idea) , the ftp server is not using it's public IP anymore when it go out . (it start using our "general" network IP NAT)

              I know that when i used the checkpoint router i was bind the internal IP to the Public IP through its MAC address.
              I guess i need to do the same thing here , but how?

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              • KOMK
                KOM
                last edited by

                Do you have a Virtual IP alias (Firewall - Aliases) for your public IP used by your FTP server?

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                • D
                  dvirshiber
                  last edited by

                  Hey, I'm not so familiar with this setting,
                  What should I do there?

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                  • KOMK
                    KOM
                    last edited by

                    What should I do there?

                    Well, that depends on whether or not you have more than one public IP address.  If you have more than one, you use Virtual IPs to let pfSense handle them, and you use those IPs in your NAT rules as destinations.  I don't want to confuse the issue though.  This shouldn't be that hard:

                    • 1 NAT port forward for port 21 to your ftp server

                    • 1 NAT port forward for the passive port space you are using to your ftp server

                    • 1 firewall rule to allow the port 21 traffic to your ftp server

                    • 1 firewall rule to allow the passive port space traffic to your ftp server

                    That's it.  This assumes that your ftp server works properly and is configured properly.

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                    • D
                      dvirshiber
                      last edited by

                      First , i'd like to thank you for your help.

                      second , for all those who will have the same problem like me :

                      I installed FileZilla server at the FTP server , and things began to work just fine!

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                      • KOMK
                        KOM
                        last edited by

                        I was starting to suspect that it was your FTP server.  Glad to hear you got it working.  Which server were you running before, so that we know to avoid it?

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                        • johnpozJ
                          johnpoz LAYER 8 Global Moderator
                          last edited by

                          Yeah would be curious to what ftp server you were using as well, most likely it was not sending out its correct public IP but its private IP when doing passive connections.  Filezilla makes it quite easy to manipulate using private or public and even offer solutions for your public to be looked up by the ftp server, etc.

                          While you stated you set the passive to a limited range, I have to assume any ftp server that allowed for that would also allow for use of public IP vs its local private IP.

                          An intelligent man is sometimes forced to be drunk to spend time with his fools
                          If you get confused: Listen to the Music Play
                          Please don't Chat/PM me for help, unless mod related
                          SG-4860 24.11 | Lab VMs 2.8, 24.11

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                          • D
                            doktornotor Banned
                            last edited by

                            @johnpoz:

                            Yeah would be curious to what ftp server you were using as well

                            MicroShit IIS. There's a screenshot a page back.  ::)

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                            • KOMK
                              KOM
                              last edited by

                              I saw that screen but it told me nothing.  I don't use IIS for anything, ever.  It figures, though.  Microsoft.

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                              • D
                                dvirshiber
                                last edited by

                                well, i have 2 ftp servers , one with 2008 and one with 2003. (no 3rd party application, just the classic iis managment)
                                the problem were at the two of them.

                                After the Zilla installation (btw it can't be install on 2003 , just from 2008 and above…) i configure the passive port range (again) but at the setting windows of the Filezilla, and it works like magic.

                                Actually i installed the zilla only for it's LOG , and on the way it solved my problem so i'm good with it.

                                my next step is to set the VPN users (instead the endpoint connect of the checkpoint VPN)  , but i'm sure it will be more easier , elsewhere my managers will probably kill me .

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                                • D
                                  doktornotor Banned
                                  last edited by

                                  @KOM:

                                  It figures, though.  Microsoft.

                                  Yeah. They get the ftp.exe client totally wrong, and the server is no better.

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                                  • johnpozJ
                                    johnpoz LAYER 8 Global Moderator
                                    last edited by

                                    I have not had to deal with ftp in IIS for YEARS and YEARS..  Would have to fire up a copy to see if it lets you set the IP to use for passive when its on a private?  There are much better options for ftp servers than IIS that is for sure ;)

                                    To be honest you should try and get away from ftp altogether and use either sftp or just plain http or https.

                                    An intelligent man is sometimes forced to be drunk to spend time with his fools
                                    If you get confused: Listen to the Music Play
                                    Please don't Chat/PM me for help, unless mod related
                                    SG-4860 24.11 | Lab VMs 2.8, 24.11

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                                    • D
                                      dvirshiber
                                      last edited by

                                      Yes , i will think about it. maybe you right.

                                      Our company developing a desktop software for nursing homes , and long time care hospitals that one of it's features is to get lab results automaticaly .(u know like hemoglobin, rdw ,wbc, cholesterol …)
                                      So the way we choose to perform this operation is to connect to the FTP via activeX and simply download the HL7 files (if u familiar with web services) that belongs to the hospital.

                                      Every hospital have a uniqe ID , so at the FTP server we created a folder tree , every folder is the uniqe id of each hospital.

                                      thats why we choose to work with ftp , so every client after they connect to the server operate 3 simple commands:
                                      CD <unique id)="" <br="">mget *.hl7
                                      del *.hl7
                                      (bye)

                                      i'm not sure i will succeed the same proccess with other protocol like http to control these commands.</unique>

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                                      • D
                                        doktornotor Banned
                                        last edited by

                                        @dvirshiber:

                                        connect to the FTP via activeX

                                        You'd better avoid more details…

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                                        • KOMK
                                          KOM
                                          last edited by

                                          Yeah, the FTP via ActiveX kind of hit me too.  Ancient insecure Internet protocol combined with ancient insecure MS technology.  And this is something you're developing new, or some old thing you are tasked with maintaining?  Sending patient data over unencrypted links.  Is that even HIPAA Title II-compliant?

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                                          • D
                                            doktornotor Banned
                                            last edited by

                                            The only thing missing in the nightmare mix is some nifty Flash management GUI… HIPAA or not -- but dude, you realize you are dealing with highly sensitive personal data?!?  :o :o :o

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