[arch-general] Can a ISP modify incoming http traffic to display ads using transparent proxy server ?
My ISP is running a transparent proxy server on port 80 as I found out from this thread http://mailman.archlinux.org/pipermail/arch-general/2011-March/019172.html Now from last two or three days, I keep getting pop-up ads from a particular domain on every website i go to - even on text only websites ! If i choose another proxy server in firefox , then that does not appear on any site. But i normally connect to internet, that specific pop-up to a very particular website appears on every single page. If I install adblock plus in firefox, then of course no ads are displayed. So is it possible that my ISP is serving that ad by intercepting incoming http traffic ?
On 04/02/11 02:45, Partha Chowdhury wrote:
My ISP is running a transparent proxy server on port 80 as I found out from this thread
http://mailman.archlinux.org/pipermail/arch-general/2011-March/019172.html
Now from last two or three days, I keep getting pop-up ads from a particular domain on every website i go to - even on text only websites ! If i choose another proxy server in firefox , then that does not appear on any site.
What happens if you go to an https: site? The data generally cannot be modified between the server and your browser in that case. Also... your in-browser proxy choice works around the ISP proxy? Interesting. (Is the cable operator trying to be unpopular while making ad-money?) -Isaac
On 02/04/11 12:38, Isaac Dupree wrote:
What happens if you go to an https: site? The data generally cannot be modified between the server and your browser in that case.
Also... your in-browser proxy choice works around the ISP proxy? Interesting.
(Is the cable operator trying to be unpopular while making ad-money?)
-Isaac
Sorry I forgot to add that.On more trial and error - I see 1> on https no ad is displayed 2> Even on ftp sites no ad is displayed. Only happens with pages on http://. Another interesting thing, after installing adblock-plus, an x mark is displayed on http pages just where the ad used to be.After right-cliking, i see an url 172.16.2.194/streamride/* in adblock plus filter blocking dialog.Interestingly my ISP is also running squid 3.2.0.4 on streamride host which is evident by trying to connect to random ip addresses and seeing the error page.
On Sat, 2011-04-02 at 12:15 +0530, Partha Chowdhury wrote:
My ISP is running a transparent proxy server on port 80 as I found out from this thread
http://mailman.archlinux.org/pipermail/arch-general/2011-March/019172.html
Now from last two or three days, I keep getting pop-up ads from a particular domain on every website i go to - even on text only websites ! If i choose another proxy server in firefox , then that does not appear on any site. But i normally connect to internet, that specific pop-up to a very particular website appears on every single page. If I install adblock plus in firefox, then of course no ads are displayed.
So is it possible that my ISP is serving that ad by intercepting incoming http traffic ?
Yes, proxyservers can intercept pages and modify them. I used to have a transparent squid proxy that would filter ads and replace them with a 1x1px transparent pixel. If you're paying for this internet line, I would suggest to switch to a different provider. Inserting ads in HTTP pages for a connection that is being payed for is not-done.
I suggest you install addblocker in the firefox add-ons. On Sat, 2 Apr 2011, Jan de Groot wrote:
On Sat, 2011-04-02 at 12:15 +0530, Partha Chowdhury wrote:
My ISP is running a transparent proxy server on port 80 as I found out from this thread
http://mailman.archlinux.org/pipermail/arch-general/2011-March/019172.html
Now from last two or three days, I keep getting pop-up ads from a particular domain on every website i go to - even on text only websites ! If i choose another proxy server in firefox , then that does not appear on any site. But i normally connect to internet, that specific pop-up to a very particular website appears on every single page. If I install adblock plus in firefox, then of course no ads are displayed.
So is it possible that my ISP is serving that ad by intercepting incoming http traffic ?
Yes, proxyservers can intercept pages and modify them. I used to have a transparent squid proxy that would filter ads and replace them with a 1x1px transparent pixel. If you're paying for this internet line, I would suggest to switch to a different provider. Inserting ads in HTTP pages for a connection that is being payed for is not-done.
On Sat, Apr 02, 2011 at 08:21:33AM -0400, Jude DaShiell wrote:
I suggest you install addblocker in the firefox add-ons.
That would "work", but would not solve the main issue being that you are paying for your ISP -and- getting assaulted by their ads, which should not be done.
participants (5)
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Harry Strongburg
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Isaac Dupree
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Jan de Groot
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Jude DaShiell
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Partha Chowdhury