web site

[dugan at passwall.com]

On Mon, Oct 14, 2002 at 11:13:52PM -0700, troy wrote:
> On Mon, Oct 14, 2002 at 10:43:07PM -0700, dugan at passwall.com wrote:
> 
> > There are a few likely problems:
> > 1) DNS issues:
> >  a) No DNS reponse for this lookup
> >  b) DNSlookup reports incorrect IP address
> > 
> > 2) Filtering:
> >  a) ISP is filtering traffic to prevent access
> >  b) routing tables are screwed up
> > 
> > 1) Modify your OS's DNS Addresses (copy them to paper before they are
> > changed) and modify them to only include
> 
> [snip]
> 
> much easier way:
> nslookup www.nblug.org  208.201.242.2
> 
> I'd have tried mysqlf using a "CDS" nameserver as the second argument, but
> i have no idea who the heck CDS is.
> 
> I'm in email catchup mode and didn't read the early parts of this thread, so
> sorry if this has been mentioned already...
> 
> Can you access the nblug web site using it's ip address?
> http://208.201.242.2/

One of the reasons I suggested modification of the DNS, is that a
multi-homed web server may accept the connection by IP, but if multiple
names exist, then you have no guarantee that the page s7you see will
actualy be the ones you wanted from the web server.

Also, by modifying the DNS used by the client, the end user can navigate
the nblug website to view the content they originally wanted to visit
while they wait for their ISP to fix things. Also, you may notice that
when you connect up to the server by IP address, many links show up as
"http://www.nblug.org/" instead of the original IP address that was
used. This makes navigation rather tricky, as the user (assuming DNS
resolution issues) must manually type in links substituting the IP for
the name. :-(

Later in the doc, I suggest using nslookup or dig against their ISP's
DNS to further do some checking.

> 
> If not, then probably the most useful thing to provide would be a traceroute
> ("tracert" in 'doze) from your desktop to 208.201.242.2
> 
> again, apologies for any redundancy.
> 
> -ta

traceroute is a really good idea for testing. :-)

-ME

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