Re: the curious case of the inaccessible websites

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: [email protected]

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 som
 e 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
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