Re: external ports

Tech Tip: Click here to run a free scan for Windows Errors and optimize PC performance

whether a port is open depends on several things. Some services listen on
multiple interfaces, sometimes a service listens only on one interface and
requests to the other interface are forwarded to the listening interface.

The existence of ISA effects this. (HINT: I don't like to ask questions
twice)

<shawn@xxxxxxxxxxxx> wrote in message
news:1168815544.107580.308240@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Hi Gumby,

I can try that tomorrow. Yes, I am def, testing from external. If a
port is opened on one of the network cards, is it also opened on both?
All of these services work internally.

Thanks
SuperGumby [SBS MVP] wrote:
OK.

Do you know if it's possible to put a switch/hub between the external
interface and internet, get multiple IP's on the external side. This
would
make it possible to rule out the ISP, connect a workstation to the same
subnet as external and see if the ports are accessible.

Dual NIC but you don't mention Premium vs Standard, is ISA involved?

Also, please confirm, you are testing this from 'outside' the network,
another internet connection. (I'm pretty sure you are)

An alternative to the multiple public IP's test would be to put a router
between the SBS and your public IP. Note also that even with ISA
installed I
would recommend using a simple NAT router between SBS and the T1.

<shawn@xxxxxxxxxxxx> wrote in message
news:1168810293.076176.123900@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
I do know what CEICW is and have re ran it. I have chosen to make the
services available.
SuperGumby [SBS MVP] wrote:
that is only part of what Charlie asked and suggested.

Do you know what the CEICW is? Have you run it? Have you chosen to
make
services available?

<shawn@xxxxxxxxxxxx> wrote in message
news:1168792791.201719.90110@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Yes, the services are available. They all work internally. Connected
directly through the isp. It is a T1.
Charlie Russel - MVP wrote:
Have you run the CEICW and selected the appropriate services to be
available? How are you connected to the Internet? Through a router?
Or
directly connected to your ISP's modem?

--
Charlie.
http://msmvps.com/blogs/xperts64

<shawn@xxxxxxxxxxxx> wrote in message
news:1168791156.104271.246570@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
I have a proliant SBS 2003 server with two network cards in it.
One
has
the public ip and one is private. I am able to reach the server
externally acccessing Outlook Web access but am unable to reach
other
ports (RWW, 3389 and others). These are enabled on the server. I
do
not
see any third party programs that would stop this.

Remote Desktop to the server works internally it does not work
externally. If I scan 3389 on the public ip, it shows this as
closed.
Is there anything I can do in the server, or is this an isp
issue?
Thanks in advance.






.

Relevant Pages

  • Re: change ISA IP address
    ... You can have multiple IP's on the external interface for web-publishing ... can re-use the same listener for all your web publishing ... >> port 80, as WPAD in DNS does NOT allow specifying a custom port like WPAD ...
    (microsoft.public.isa)
  • Re: Publish Web Server behind SBS 2003 Standard
    ... I ended up plugging another router into the WAN. ... How to configure Internet access in Windows Small BusinessServer2003http://support.microsoft.com/kb/825763/en-us ... network interface on right (By default the interface name should be ... input 80 in Outgoing port box. ...
    (microsoft.public.windows.server.sbs)
  • Re: Firewall Question
    ... I think you misunderstand on of the basics of firewall configuration... ... Your basic typical firewall has a trusted and an untrusted interface. ... If you open port 80 on the ... It failed to access Internet when I just allow port ...
    (Security-Basics)
  • Re: NAT Problem Port Forwarding
    ... Client PC1, other in Client PC2. ... english) and I have only one way out to the internet - My DC ... Two Applications cannot use the same port on the same ... > interface at the same time. ...
    (microsoft.public.windows.server.networking)
  • RE: Publish Web Server behind SBS 2003 Standard
    ... First, we do not support install more than 2 NIC on SBS, that will cause ... How to configure Internet access in Windows Small Business Server 2003 ... network interface on right (By default the interface name should be ... input 80 in Outgoing port box. ...
    (microsoft.public.windows.server.sbs)