Re: loss of SOME connectivity

ping http://anything isn't going to work, BTW. You can only ping either an IP address, or a host name like www.site.com or site.com. Ping isn't a definitive test of connectivity either, as many hosts will not reply. But ping can be used to test dns resolution - for example if you ping www.microsoft.com, you won't get a response but you should see an IP address, indicating that the name was resolved therefore DNS is working.

--
Les Connor [SBS MVP]


"Howard O. Kieffer" <HowardOKieffer@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message news:96B9C807-37DC-4CE4-A8C3-2E4F00C02D92@xxxxxxxxxxxxxxxx
Thanks for keeping on this.

First, I shold tell you that all the workstation on the network can browse
the internet without problem. And, I can VNC into the server without any
issue. The only issue is that the server cannot send/receive email, nor can
it browse the internet.

I Pinged 66.94.234.13 and got the appropriate replies. When I ping the same
address with "http://"; in front, I get "Ping request could not find host . .
."

I pingd the IP address you supplied for 3COM.com and it worked just fine.
However, with the "http://"; in front - same result as yahoo.

You're right, I cannot ping microsoft's IP address. And, with the "http://";
in front, same result as the others.



--
Howard O. Kieffer


"Larry Struckmeyer" wrote:

I "think" it is DNS. Can you plug a system that has no ISA firewall active
directly into the inet and put in the ISP settings on the NIC, including the
DSN servers in the ip properties of its network connection? (of course, if
those settings are dynamic, they will populate automagically)

If the system is a member of the domain you may have to log on to the local
system with a local account, preferable the local administrator so you can
adjust the IP settings.

or:

Some of the bigger orgs use rotating ip addresses and you can never be
certain which is the "right" one at the moment.

here is the current (0630 EST) for yahoo.com, which is a place holder with
message to put in a name and not a number.

http://66.94.234.13/

try pinging the address as in:

Ping 66.94.234.13

if that works, put it in a browser in this format:

http://66.94.234.13/

does that open?

Try pinging this address, it is for 3COM.com, and it was a valid ip when I
tried it.

192.136.34.41

then put it in a browser in this format:

http://192.136.34.41/

you can copy and paste.

Does the site open using the ip number?

if not, what is the exact error on your screen?

and here is www.microsoft.com

ping 207.46.193.254

it will say it is pinging it, but then time out because MS is setup to not
respond to pings. But the site should open by ip if they have not rotated
out of that server by the time you try it.

http://207.46.193.254/

Does any of these sites open using the ip number?

if not, what is the exact error on your screen?

--
Larry


"Howard O. Kieffer" <HowardOKieffer@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in
message news:BA254195-D348-4C26-8D11-3C99DD62BAB8@xxxxxxxxxxxxxxxx
> Thanks for the response.
>
> I cannot ping out - Ping could not find host yahoo.com.
> The DNS ip address for our ISP are in the correct place in the router
> settings
> Yes, I can ping the router, AND the ISP DNS.
> Yes, I can open the Linksys management site
>
> I cannot connect the inet cable directly to the server because the inet > is
> in the basement and I am on floor 2.
>
> MS firewall not started. Linksys firewall in place (always has been).
>
> I can VNC in AND out.
>
> ICS = ??
>
> -- > Howard O. Kieffer
>
>
> "Larry Struckmeyer" wrote:
>
>> Hi Howard:
>>
>> From the server, if you ping yahoo.com do you get an ip address >> followed
>> by
>> reply or no reply or time out or?
>>
>> If you get an ip, can you ping the ip - reply - reply - reply - reply.
>>
>> Are the DNS ip addresses for your ISP in the forwarders tab of DNS in
>> Administrative Tools, DNS?
>>
>> Can you ping the ip address of the Linksys router? But not the ISP >> DNS?
>>
>> Can you browse to, and open the Linksys web management site on the >> router
>> (typically 192.168.1.1)
>>
>> If you take the router off and connect the inet cable directly to the
>> server
>> (and adjust the settings on the external nic), does it ping properly
>> then?
>>
>> Something has taken a bump. I suspect the router if you can't ping >> past
>> it,
>> but it could be the ISP has changed DNS settings on you and "forgot" >> to
>> tell
>> you. Verizon uses DNS of 4.2.2.1 - .2 - .3 - .4 can you ping any of
>> those?
>>
>> Any relevant errors in your event logs? Any third party firewalls or >> is
>> the
>> MS Firewall and ICS service started? (It should not be.)
>>
>> --
>> Larry
>>
>>
>>
>> "Howard O. Kieffer" <HowardOKieffer@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote >> in
>> message news:E0D98932-8EAC-4DE4-8527-FDD5148FF23D@xxxxxxxxxxxxxxxx
>> > Thanks for both your responses. But, perhaps I've confused you.
>> >
>> > I have SBS 2003 SP2 Premium. I have run CEICW - both with the >> > firewall
>> > and
>> > without (the router has a firewall). VNC works just fine.
>> >
>> > The PROBLEM is that I can not send/receive email through the server,
>> > nor
>> > can
>> > it browse the internet.
>> > -- >> > Howard O. Kieffer
>> >
>> >
>> > "Merv Porter [SBS-MVP]" wrote:
>> >
>> >> 832880 is a mighty old hotfix and wsa issued way back when because >> >> of
>> >> a
>> >> problem on the install CD for Companyweb. At this point, I'd >> >> re-run
>> >> CEICW,
>> >> enable the firewall, select the services and then finish CEICW. If
>> >> you
>> >> have
>> >> ISA installed, I'd also check to make sure that the Protocol
>> >> definition
>> >> and/or Packet filter for VNC is still enabled.
>> >>
>> >> If you haven't already, I'd make plans to upgrade your server to >> >> SBS
>> >> 2003
>> >> SP1 and, if you have SBS Premium, order the SBS 2003 Premium SP1 >> >> CD3
>> >> as
>> >> this
>> >> will become unavailable after Dec. 31, 2007.
>> >>
>> >> -- >> >> Merv Porter [SBS-MVP]
>> >> ============================
>> >>
>> >> "Howard O. Kieffer" <HowardOKieffer@xxxxxxxxxxxxxxxxxxxxxxxxx> >> >> wrote
>> >> in
>> >> message news:F381D492-A7B1-44F6-BC87-3D1AD61BED16@xxxxxxxxxxxxxxxx
>> >> >I agree.
>> >> > Yes, automatic updates iunstalls automatically (not any longer).
>> >> > I use the firewall on the Linksys router. proper ports are open
>> >> > there
>> >> > (and
>> >> > have been for better than a year).
>> >> > VNC works just fine - no change there. - Just no browsing or >> >> > email
>> >> > send/receive.
>> >> > I do not "control' the server with VNC, just go through to
>> >> > workstation(s).
>> >> > Add/remove programs installed an SBC 2003 Hotfix - KB832880 - on
>> >> > 10/28/2007
>> >> > Nothing else has been updated/added - but, the server was >> >> > restarted
>> >> > after
>> >> > 10/31.
>> >> >
>> >> > -- >> >> > Howard O. Kieffer
>> >> >
>> >> >
>> >> > "Merv Porter [SBS-MVP]" wrote:
>> >> >
>> >> >> The timing of this (last week) sounds like the server applied a
>> >> >> security
>> >> >> update "automatically" that broke something.
>> >> >>
>> >> >> More questions than answers:
>> >> >>
>> >> >> + Do you have Automatic Updates set to install automatically
>> >> >> (never a
>> >> >> good
>> >> >> idea with a server)?
>> >> >> + If you re-run CEICW, enable the firewall, select the services
>> >> >> (including
>> >> >> the port for VNC) and finish CEICW, does this fix the problem?
>> >> >> + Can I ask why you are using VNC to remotely control the >> >> >> server
>> >> >> instead
>> >> >> of
>> >> >> RWW or a straight RDP connection?
>> >> >> + Are you actually remotely controlling the server or are you
>> >> >> trying
>> >> >> to
>> >> >> access a workstation behind the server?
>> >> >> + What updates were applied last week (in Add/Remove Programs)?
>> >> >>
>> >> >> -- >> >> >> Merv Porter [SBS-MVP]
>> >> >> ============================
>> >> >>
>> >> >> "Howard O. Kieffer" <HowardOKieffer@xxxxxxxxxxxxxxxxxxxxxxxxx>
>> >> >> wrote
>> >> >> in
>> >> >> message >> >> >> news:285C23A8-3CA3-44A1-B5CF-84DBB8834A4B@xxxxxxxxxxxxxxxx
>> >> >> >A strange thing happened. I have SBS Server 2003 SP2. We >> >> >> >connect
>> >> >> >to
>> >> >> >the
>> >> >> > internet through a Linksys router. There are two NICs - one >> >> >> > for
>> >> >> > the
>> >> >> > local
>> >> >> > network and one for internet access.
>> >> >> >
>> >> >> > I regularly travel and connect to the server through VNC.
>> >> >> >
>> >> >> > This set-up has worked for years.
>> >> >> >
>> >> >> > Then, all of a sudden, last week (while traveling), I can VNC
>> >> >> > in -
>> >> >> > but
>> >> >> > the
>> >> >> > server cannot browse the internet or send/receive email >> >> >> > through
>> >> >> > Exchange
>> >> >> > Server.
>> >> >> >
>> >> >> > Upon my return, I rebooted the router, modem (DSL), the server
>> >> >> > and
>> >> >> > nothing
>> >> >> > changed. Locally, I cannot ping out or connect to anything
>> >> >> > outside.
>> >> >> > I
>> >> >> > cannot brouwse the internet and no mail is moving through
>> >> >> > Exchange
>> >> >> > Server.
>> >> >> >
>> >> >> > From the outside, I can still VNC in (as well as enter through
>> >> >> > the
>> >> >> > ip
>> >> >> > address in a browser) - and (of course) there is a valid IP
>> >> >> > connection -
>> >> >> > through the router.
>> >> >> >
>> >> >> > What gives? No changes have been made in the router settings >> >> >> > or
>> >> >> > the
>> >> >> > server.
>> >> >> > -- >> >> >> > Howard O. Kieffer
>> >> >>
>> >> >>
>> >> >>
>> >>
>> >>
>> >>
>>
>>
>>




.

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