It smells like MTU.  Run some pings and play around with the packet size to 
find out when it gets fragmented.


From: david
Sent: Monday 8 June 3:25 pm
Subject: [SLUG] the curious case of the inaccessible websites
To: slug@slug.org.au

I have a "business ethernet" internet connection from a TPG reseller. Suddenly 
some external websites or partial websites are inaccessible from local clients. 
I haven't yet figured out a pattern, but it looks like javascript or some such 
is holding up the webpage download. The browser is waiting for a script or css 
or something not immediately obvious. I get the same problem with different 
browsers. Some sites work perfectly - eg Westpac. The ABC site works, but after 
apparently loading it then constantly waits for something but I can't tell 
what. Some google responses work and some don't. For example, 
http://www.trivago.com.au waits indefinitely for jse.trivago.com and never 
loads, although I can telnet to port 80. BTW, lynx works fine - which makes me 
more suspicious that it's CSS or some such. I rang the help desk late on 
Friday. They suggested DNS (??), but I don't think that's it because I tried 
using an external DNS server and in any case there doesn't seem to be any 
resolution
  problem. On their suggestion I've rebooted both the Cisco router and NTU with 
no change. Does anybody have any thoughts? David -- SLUG - Sydney Linux User's 
Group Mailing List - http://slug.org.au/ Subscription info and FAQs: 
http://slug.org.au/faq/mailinglists.html
-- 
SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/
Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html

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