Solved

ipcop firewall problem

Posted on 2010-09-14
4
769 Views
Last Modified: 2012-05-10
we had installed IPCOP 1.4.20 with this modules:
blockouttrafic 3.0
advproxy
urlfilter

when we try to connect from an internal pc with filezilla ftp client to an external ftp we receive the following answer:
--------------------------------------------------------------------------------------------------------
Stato:        Connessione a 77.238.22.180:21...
Stato:        Connessione stabilita, in attesa del messaggio di benvenuto...
Risposta:       220 Microsoft FTP Service
Comando:       AUTH TLS
Risposta:       234 AUTH command ok. Expecting TLS Negotiation.
Stato:        Inizializzazione TLS in corso...
Errore:       Impossibile collegarsi al server
-------------------------------------------------------------------------------------------------------------
0
Comment
Question by:robygrillo
  • 2
4 Comments
 
LVL 10

Expert Comment

by:pfrancois
ID: 33681872
You need to go to the block out traffic (BOT) interface and to open tcp ports 20 and 21 for allowing outgoing FTP services. Seeing the error messages, probably you opened one of both ports but not the other.

0
 

Author Comment

by:robygrillo
ID: 33681987
The port 20 and 21 are already open in bot interface, maybe is a problem related to the TLS certificate that the remote ftp server try to send us  
0
 
LVL 10

Accepted Solution

by:
pfrancois earned 500 total points
ID: 33684029
I deduce you are using FTPS (FTP secure) instead of FTP, also called FTP over TLS/SSL.  For this protocol, you need to open also TCP and UDP ports 989 and 990. See <http://en.wikipedia.org/wiki/List_of_TCP_and_UDP_port_numbers>.
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Do you have a windows based Checkpoint SmartCenter for centralized Checkpoint management?  Have you ever backed up the firewall policy residing on the SmartCenter?  If you have then you know the hassles of connecting to the server, doing an upgrade_…
The DROP (Spamhaus Don't Route Or Peer List) is a small list of IP address ranges that have been stolen or hijacked from their rightful owners. The DROP list is not a DNS based list.  It is designed to be downloaded as a file, with primary intention…
This Micro Tutorial hows how you can integrate  Mac OSX to a Windows Active Directory Domain. Apple has made it easy to allow users to bind their macs to a windows domain with relative ease. The following video show how to bind OSX Mavericks to …
Although Jacob Bernoulli (1654-1705) has been credited as the creator of "Binomial Distribution Table", Gottfried Leibniz (1646-1716) did his dissertation on the subject in 1666; Leibniz you may recall is the co-inventor of "Calculus" and beat Isaac…

810 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question