Lame corporate proxies exposed
A few weeks ago I wrote about lame corporate proxy servers which mangle the HTTP request headers on behalf of their employees and customers and therefore cause them to be denied access to websites such as this one.
Statistically, our anti-spam software has been blocking access to anyone relying on the following misconfigured proxies:
- 21torr.com
- adelphia.net
- alicedsl.de
- ameritech.net
- aol.com
- asd.tj.cn
- bell.ca
- bluedome.net
- blueyonder.co.uk
- btcentralplus.com
- bvconline.com.ar
- cantv.net
- cernel.net
- cgocable.net
- charter.com
- chu.edu.tw
- codetel.net.do
- comcast.net
- cox.net
- cpd.ufjf.br
- cyberz.co.jp
- cytanet.com.cy
- dnsalias.com
- dreamhost.com
- dslohio.net
- edgeio.com
- emirates.net.ae
- enmaxenvision.net
- ev1servers.net
- eva.com.mx
- hertza.ro
- inhoster.com
- inquira.com
- insightbb.com
- interbusiness.it
- intercage.com
- ipplanet.net
- kalypsoweb.com
- keymachine.de
- layeredtech.com
- linkvendor.com
- main-hosting.com
- message-group.mobi
- metrocast.net
- metrolink.pl
- mgc.com.au
- microsoft.com
- mojeek.com
- mtn.co.za
- muc-t-systems.com
- ne.jp
- net.il
- netcathosting.com
- netvisio.net
- okay.pl
- optonline.net
- optusnet.com.au
- oup.com
- pacbell.net
- pacific.net.id
- pol.co.uk
- powergate.ca
- proxy77.net
- qwest.net
- rr.com
- sensis.com.au
- sify.net
- sohu.com
- state.fl.us
- stumbleupon.com
- surfer.at
- t-ipconnect.de
- tedata.net
- tele.dk
- telecable.es
- telkomadsl.co.za
- theplanet.com
- tktelekom.pl
- twtelecom.net
- virtua.com.br
- vmhk.net
- vsnl.net.in
- warp-factor.net
- websiteoptimization.com
- westnet.com.au
- westpac.com.au
- whois.sc
- wideopenwest.com
- wildpark.net
- wnet.ua
- xtra.co.nz
- yahoo.net
Is your employer or internet service provider one of them? I guess some of you will never know, because if it is, you probably won't be able to read this post either.
Due to the large volume of spam, comments are disabled. If you have anything to say, please feel free to contact me directly.
About the author
Ivan Lutrov is the owner of Lutrov Interactive. He creates cost effective business websites that are simple, engaging and very easy to use. When not busy working on client and personal projects, he's into photography, fishing, cricket, tennis, music from the 70s, cooking, good wine, and apparently knows "way too much" about movies. He tells it like it is, whether you like it or not. Subscribe to the Lutrov Interactive feed via RSS and follow Ivan on Twitter.