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URGENT: FTP Passive Mode + Serv-U - 3.Nov.2005 5:03:00 AM

maurizio.schmidt

Posts: 4
Joined: 3.Nov.2005
From: Germany
Status: offline

Hi,

we use ISA 2004 and all our Servers are Windows2K3 SP1.

at our isa server is are two NICs installed, one public ip, one internal.

Services Like OWA; diffrent Websites; diffrent Protocols etc are doing well and where installed in nearly no time with no problems at all.

No i published an FTP Server ( standart ports ) but its absolutly not possible to get this thing working in passive mode, which is those days essential to get working.

when i put the serv-u server infront of our firewall, directly connected to the internet all works fine. when i move the server within our envirement and publish it via default ftp publish rule, then u can connect and upload/download but not in passive mode. i can add in serv-u port range which the serv-u should use, i added also a rule where these portrange was in/outbound free for the ftp, doesnt work at all.

what can i do, that pasv ftp works within isa 2004 envirement ?

need help asap!

Post #: 1

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RE: URGENT: FTP Passive Mode + Serv-U - 3.Nov.2005 2:28:00 PM

spouseele

Posts: 12782
Joined: 1.Jun.2001
From: Belgium
Status: offline

Hi Maurizio,

first of all, you posted an ISA 2004 question in an ISA 2000 forum! [Eek!]

Accessing a published FTP server in active or passive mode should not pose any problem. I've tested it with IIS6 as FTP server and MoveIT Freely and SmartFTP as FTP client.

For Serv-U, check out http://www.isaserver.org/tutorials/Publishing-Secure-FTP-Servers.html .

HTH,
Stefaan

(in reply to maurizio.schmidt)

Post #: 2

RE: URGENT: FTP Passive Mode + Serv-U - 4.Nov.2005 6:36:00 AM

maurizio.schmidt

Posts: 4
Joined: 3.Nov.2005
From: Germany
Status: offline

I made exactly the steps like there where posted but nothing, its absolutly not possible to get some ftp server working in pasv mode with a firewall like ISA 2004.

i realy dont understand why such a "must-have" is not implemented yet.

btw, may u can move this thread to ISA 2004, thx.

(in reply to maurizio.schmidt)

Post #: 3

RE: URGENT: FTP Passive Mode + Serv-U - 4.Nov.2005 11:23:00 AM

spouseele

Posts: 12782
Joined: 1.Jun.2001
From: Belgium
Status: offline

Hi Maurizio,

ISA 2004 does support active *and* passive mode FTP as well with access rules as with server publishing rules. I have tested it multiple times without any problem.

Can you post some details of your specific configuration? Also, I suggest you try it with IIS too to find out if Serv-U behaves differently. And don't forget that the ISA logging and a Network Monitor capture are you friends for such kind of problems. [Wink]

HTH,
Stefaan

(in reply to maurizio.schmidt)

Post #: 4

RE: URGENT: FTP Passive Mode + Serv-U - 15.Nov.2005 10:06:18 AM

maurizio.schmidt

Posts: 4
Joined: 3.Nov.2005
From: Germany
Status: offline

Hi spouseele,

what kind of information did u need exactly, ill post you anything u need.

network

isp cisco router has public ip x.x.x.1

isa 2004 is connected to the router and has 2 Nic�s:

nic1) x.x.x.4 public ip

nic2) z.z.2.254 internal ( which is our standart gw for the clients )

the dns for our ftp server points to the public ip from our isa server: ftp.domain.name -> x.x.x.4 public ip

the ftp server is located on our internal net at the ip: z.z.1.2

The FTP Server is published via Server Publishing Rule with FTP Filter activated ( so that it works at all )
I added also a portrange 2000 - 2040 for inbound to the ftp server rule and give this to serv u as passive port range.

what else did u need now ?

thx for your help.

(in reply to spouseele)

Post #: 5

RE: URGENT: FTP Passive Mode + Serv-U - 14.Dec.2005 11:44:33 AM