Re: No internet access thru SBS

Hi Joe

Contrary to some individuals here, ANY pc / server connected to the internet should have two NICS. Even home users but this can be overkill for them. Business environment definately two NICs, even with hardware firewall. It is good security practice, if the hardware firewall is comprimised or a mistake is made a hacker cannot get to the LAN (company data), its impossible in a 2 NIC scenario. Single NIC scenario, get past hardware firewall and access to company data.

Having a single NIC makes configurations easy and you can have ISA on a single NIC but then ISA is only in cache mode, no point having SBS Premium unless you have two NICS.

In a single NIC scenario:-

"Joe" <Joe@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message news:2A33C570-D09F-4B28-B127-896E22B70D4E@xxxxxxxxxxxxxxxx
Pop, this is a 2 NIC setup. (can you run ISA with a single NIC? I just asumed
it always needed at least 2 NICS) I did not check the ISA log. Good
sugestion. This is not a UK / BT customer. It is US.

As for running ICW, everything is now OK. I left the site with everything
working the day before then somwhere the internet pass-through in the SBS
quit. Exchange continued to work, I could ping to the outside world. Just no
one could go out on the internet from the LAN side.

I assume that is the proxy server feature that quit. Which I guess is part
of ISA??
Again I would like to know how to troubleshoot this and maybe be able to
stop/start the correct services to try to get it working again. I have 5 SBS
installs and this paticular event has never happened to me before.

"POP" wrote:

Hi Joe

I have had this and turning off router for 3mins and turning back on
resolved, granted didn't test another pc direct to router though.

Re running internet connection wizard,

100% sure nothing changed in server

Have you run up ISA monitoring log to see if this gives indication

Is this one nic or 2, if 2 IP address of WAN connection is correct IP in
internet connection wizard ?

Is this UK and a BT customer.... last 2 weeks had 3 of these.


"Joe" <Joe@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:3E90A883-D0F6-4374-AFFD-20863179C74B@xxxxxxxxxxxxxxxx
> On additional peice of information. The POP service for exchange was
> connecting
> and downloading OK during this time.
>
> "Joe" wrote:
>
>> I got a call from a customer that the internet was down. The server is
>> SBS2003 running ISA.
>>
>> At the site from the server I could not get an internet connection >> using
>> IE.
>> From the SBS command prompt I could ping external sites, no problem. >> DNS
>> settings were correct. Internal users could connect to the SBS server >> .
>>
>> I connected a PC directly to the WAN side of the server and found the
>> internet working OK so indeed it was a problem in SBS. I could not >> find
>> any
>> meaningful error messages or any obvious (to me anyway) stopped >> services.
>> Rebooting the SBS server corrected the problem.
>>
>> My question for the next time is what service(s) are required for
>> internet
>> pass-thru. I would like to be able to try restarting them to possibly
>> keep
>> from rebooting the server. Any other trouble shooting hints would be
>> appreciated.
>>
>> Thanks



.

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