[dba-Tech] RE: [AccessD] Serv-U

John W. Colby jwcolby at colbyconsulting.com
Tue Aug 2 19:44:45 CDT 2005


All of the machines in my network have Sygate personal firewall installed on
them, but I have unloaded (closed) that on both the server and my laptop
which I am using to test the FTP server.  From my laptop, inside of my
network, I can use IE to go to the server ftp address, see the ftp
directories etc.  I am asked for the username and password by the FTP
server, and once I enter them I can see the directories.  I can send files
from my laptop to the directories for that username.  I can move files into
those directories directly on the server machine, and I can then see them
using IE Explorer and FTPing into that machine (locally).

As for "going out and back in, I use No-IP to discover my IP address
assigned by the cable company.  I then enter that at IE address bar:
ftp://68.198.141.18  Doing that, IE "hangs for a long time", then comes back
and says it can't find the address.

One thing that I have discovered is that the WAN IP address is
192.168.102.100, and the "default gateway" is 192.168.102.1 for the WAN
according to the router, whereas the interior IP group is 192.168.122.1XX -
(100-199).  The LAN IP address is 192.168.122.1  Why is the wan .102.100 and
everything else 122.1xx?

I have no clue what that means, just that is seems strange to me.  

The router is the DHCP server for the network (which is a workgroup) and the
FTP Server is assigned .106 all of the time, with other machines also
assigned specific addresses.  I did this so that I could vnc / remote
desktop in to my LAN from outside and count on getting to specific machines.
I have had all of that working in the past, though I don't guarantee that it
still does.

It seems to me to be an issue with the router, port forwarding and so forth
since I can do everything from inside the network.  OTOH, I don't know that
my request is even getting out to the internet, never mind back in.

John W. Colby
www.ColbyConsulting.com 

Contribute your unused CPU cycles to a good cause:
http://folding.stanford.edu/

-----Original Message-----
From: accessd-bounces at databaseadvisors.com
[mailto:accessd-bounces at databaseadvisors.com] On Behalf Of Eric Barro
Sent: Tuesday, August 02, 2005 8:08 PM
To: 'Access Developers discussion and problem solving'
Subject: RE: [AccessD] Serv-U


How are you trying to get back out and into your FTP server? 

Are you trying to get to it using a different machine? 

Check the firewall settings on the machine to see if it is accepting outside
connections for the protocol that FTP is listening on. To check if a
particular port is being used by a protocol go to the command prompt and
type NETSTAT -a.


-----Original Message-----
From: accessd-bounces at databaseadvisors.com
[mailto:accessd-bounces at databaseadvisors.com] On Behalf Of John W. Colby
Sent: Tuesday, August 02, 2005 4:54 PM
To: 'Access Developers discussion and problem solving'; Tech - Database
Advisors Inc.
Subject: [AccessD] Serv-U

I am trying to get Serv-U FTP server going on my server here in my office.
The install was simple and just worked.  It works just fine inside of my
network, using ftp://192.168.122.106 (the server IP address) but I cannot
see it going out to the internet and coming back in.  I have a dlink 624 (I
think) router, in which I have forwarded ports 20 and 21 to 192.168.122.106.
I just cannot see the server, from my laptop, going out and back in.

One of my tech assists suggested that my ISP might be blocking port 20/21,
so I set up the server to look for the ftp at 59999 and then used :59999 at
the end to try and force contact at that port.  That does not work either.

Can anyone suggest how to test this thing, coming in from the outside?  If
anyone out there knows this stuff, and in particular has experience with
Serv-U, can you assist me in getting this working.

John W. Colby
www.ColbyConsulting.com 

Contribute your unused CPU cycles to a good cause:
http://folding.stanford.edu/


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