[ale] can't reach sites using DSL

[David Corbin]

Adrin wrote:

>I can always use nslookup, dig or host to look up IP's and see if your DNS
>is working.
>
DNS is functioning just fine, as far as I can tell.  But I'll add 
verifying that they return the same results to my list ( I can switch 
back and forth between cable-modem and DSL).

>
>Have you looked at your firewalls?  
>
The only firewall is one Linux box.  IT, of course, is the one talking 
to the DSL/cable-modem.  Is there something specific I should check?

>What are you using to browse to those
>sites?
>I will assume that you are not using IE..   hehe Sorry maybe that isn't it.
>
The problem manifests itself with IE, Mozzila, and wget.

>
>It would be interesting to see if there are two different firewall rules.
>
Only one firewall on my part, so one set of rules

>You know there are a lot of sites that have third party cookies and ping you
>and so on and on. Big brother is in commerce.
>
I don't understand this reference.

>
>Just a thought I hope it helps.
>
>Next thought.  I had my DSL working and then got a wild hair a started
>setting up the Faxmodem.  It seems that ppp0 get linked to it.  so I had to
>edit the firewalls and change ppp0 to ppp1.
>
Nope.  I've got masquerading on eth1, ppp0 and ppp1.  It's not that.  

Keep in mind, I do get partial pages. I can do a "telnet www.msn.com 80" 
and it connects without problem.  It's either a problem related to some 
third-party host (where images are stored, or something) or it's a size 
problem (I have set my MTU down, too, btw)

David

>
>
>Good luck
>Adrin
>
>
>
>-----Original Message-----
>From: David Corbin [mailto:dcorbin at imperitek.com]
>Sent: Monday, January 14, 2002 8:21 PM
>To: Jim Philips
>Cc: ALE
>Subject: Re: [ale] can't reach sites using DSL
>
>
>You are not alone (entirely).  I just installed DSL (Bellsouth), and
>while some sites work fine, others (espn.com, msn.com (no kvetching-- I
>don't use it), weather,com, towerrecords.com) don't  come up
>*completely*.  I get a partial page, but it's obvious that some of the
>image links are not getting downloaded.  If I switch back to my
>cable-modem (drop the ethernet, start dhcp), I continue to have
>problems.  But, if I reboot, and bring up the cable-modem without bring
>up DSL, I have no problem whatsoever with these sites.
>
>Any suggestions are welcome.
>
>
>On my cable-modem, 2 of the 4 sights you sight "fail" with traceroute,
>but they all succeed when I browse them via the web they work.
>
>I think that more and more companies are blocking ICMP packets, I assume
>as a method of defeating DOS attacks, but I think it sucks.  Makes it
>very hard to "debug" networking problems.
>
>Jim Philips wrote:
>
>>My results are below. When I do a traceroute to any of these IP
>>addresses, I hit a hop where I only get "* * * * " and the trace goes no
>>further. Mindspring says all of this is happening beyond their network.
>>But it seems odd to me that a whole group of unlrealted sites would
>>suddenly become inaccessible to me.
>>
>>with the DNS servers
>>On Mon, 2002-01-14 at 10:52, Mike Millson wrote:
>>
>>>1) Try accessing the sites by IP numbers.
>>>2) Ping the sites and see if you get the IP numbers listed below that I
>>>
>got.
>
>>>my.weather.com = 63.111.5.5 Netscape says "connection refused"
>>>my.monster.com = 63.112.169.4 Never loaded
>>>www.dvdovernight.com = 216.158.44.21 Never loaded
>>>www.suntrust.com = 129.33.63.122 Never loaded
>>>
>>>Thank you,
>>>Mike Millson
>>>----------------------------------------
>>>AableTech Solutions, Inc.
>>>770.414.8834
>>>770.414.8206 fax
>>>http://www.atsga.com
>>>----------------------------------------
>>>
>>>-----Original Message-----
>>>From: Jim Philips [mailto:jcphil at mindspring.com]
>>>Sent: Monday, January 14, 2002 10:40 AM
>>>To: Atlanta Linux Enthusiasts
>>>Subject: [ale] can't reach sites using DSL
>>>
>>>
>>>For weeks now, I haven't been able to reach some sites that I used to
>>>visit all of the time. Some of those sites are:
>>>
>>>http://my.weather.com
>>>http://my.monster.com
>>>http://www.dvdovernight.com
>>>http://www.suntrust.com
>>>
>>>This all happened after I upgraded to RedHat 7.2. Most sites load as fas
>>>as they always did. I have tried changing MTU and RWIN to no effect. The
>>>attistude of Earthlink support seems to be "Yeah, we'll get back to you
>>>on that later". I am looking for a few more things to try before I give
>>>up on Mindspring/Earthlink altogether. Any ideas?
>>>
>>>
>>>
>>>
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>>
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