Tot Caching Or Other Isp Caching Weirdness

[FrankFrink]

Hi all

Does anyone have any information regards Thai ISP - in particular TOT - caching of web sites and traffic in general?

I am working in web development and have been moving files to a remote server. I can login using SSH or FTP and see the files there. However in a browser there is nothing. I've tried different machines, IPs, browsers, deleting cache and so on - all I get are 404 not found errors, it's driving me mad. I can even change CHMOD on the remote files, they are for sure there.

Also I have through FTP and SSH deleted files (namely an info.php file) yet when I bring up the file in a browser it is still there! Even though via SSH and FTP there is no file any longer available. I've also tried this with different ISP, IP, browser and so on yet still the problem persists.

My last line of thought was the combination router / modem I have here: The Billion TOT ADSL modem plus the Linksys Wireless G router. I can't see where any caching might be done with these devices. I had heard previously that Thai ISPs cache large chunks of the web and also that the recent green light to ban domains and sites may have allowed for haphazard tinkering at ISP side...

Any help greatly appreciated!

AMH

Edited September 25, 2008 by FrankFrink

[ballzafire]

I think there is definitely something nefarious going on at the moment...

[rainman]

Same thing here with TRUE. I've noticed images that I have updated but left the same file names, they still display the old content.

[monty]

Normally you can force all proxies, caching servers etc between you and the host to go fetch he very latest content by pressing CTRL +F5. Should work both in Explorer and Firefox...

[Prasert]

Check the logfiles on the webserver, and if possible, look at the open sessions to see if there's a session from your webbrowser.

I had the same problems a week ago over a CAT line; website gave no response at all, although it did work over TOT.

CAT initially told me to change the dns, which of course was not a solution. After 6 hours I got a phonecall from the engineers that everything was working again.

During the time it wasn't working, not a single request for a webpage arrived at the webserver and there were no sessions open. I don't know what the exact cause of the problem was, but it was definitely at the CAT network (and most likely a caching proxy)

[bino]

Another magic bullet that works (sometimes) is to type "ipconfig/flushdns" (without the quotes) into the command prompt window.

[grrr]

Use OpenDNS instead of your ISP's DNS and shift-reload/refresh often!

[scratt]

This is rampant right now.

This last week connections to the US generally are terrible, and the same symptoms the original poster found persist on our servers also.

Strangely I can get different results at different times of the day, with web pages being served which are several days out of date, and then intermittently up to date pages...

Obviously it's a cheap way to save international bandwidth, but their caching is not only annoying and out of date, it's unreliably inconsistent.

Proxy servers are the way to go...