Talk:Cleanfeed (content blocking system)
From Wikipedia, the free encyclopedia
Jottings from the Clayton (2005) paper for possible inclusion in the article:
History:
- Illegal to "make" indecent images of children since 1994. make includes saving and browsing. See Sommer (127) and Foundation for Information Policy Research (35)
- 1996 - Internet Watch Foundation - originally mainly on usenet. UK ISPs sent a report and remove image from news servers (avoids ISP being done for possession?)
- 2003 -only 2.4% is usenet. IWF accepts reports on sites worldwide - UK site ->UK police, offshore ->national criminal intell. service to interpol. IWF keeps database of URLs and date of illegal material
- Late 2003 - BT made cleanfeed to stop own customers accessing sites on IWF blocklist
- June 2004 - cleanfeed goes live. leaked to press (22)
Design: Hybrid system. 1st stage like packet dropping but packets not discarded but routed to 2nd stage content filtering system
- traffic examined. if from a suspect site (some of which may be blocked) then redirected to 2nd stage filter
- 1st stage on destination port &ip address
- 2nd stage web proxy
- returns 404 if matches item in database
- 1st stage modified packet routing within customer facing portion of bt network (using bgp)
- 1st stage uses Ip, 2nd stage uses URLs that are encrypted - compares hashes so that banned list is not accessible
Cleanfeed only uses port 80.
US Child Pornography Prevention Act Ashcroft v Free Speech Coalition (2002)
22 - http://observer.guardian.co.uk/uk_news/story/0,6903,1232422,00.html 35 - http://www.cl.cam.ac.uk/~rnc1/SexualOffencesBill.pdf 127 - http://isig.lse.ac.uk/news/evi.html P. Sommer: Evidence in Internet Paedophilia Cases. In A. MacVean, P. Spindler (Ed.): Policing Paedophiles on the Internet, New Police Bookshop, 2003, ISBN 1-903639-12-2. Secretlondon 03:33, 31 March 2007 (UTC)
[edit] Blocking more than just CP?
I know BT block some boards on 4chan. If this is as a result of the cleanfeed system (the 4chan article says it is), then said system is already going beyond blocking CP, which _is_ banned on 4chan. Just because it shows up occasionally does not mean great swathes of the site should be blocked. Why not extend to blocking all sites with user contributions? No matter if illegal material is banned, it MIGHT show up. Even here!131.111.228.219 (talk) 13:15, 18 November 2007 (UTC)
- Do you have a link about the 4 chan stuff? Vodafone's kiddy filter blocks flickr btw. Secretlondon (talk) 22:10, 18 November 2007 (UTC)
- And *all* of 4chan!Secretlondon (talk) 22:14, 18 November 2007 (UTC)
- I don't believe the 4chan block has anything to do with cleanfeed, it's more likely moot's rather silly idea of a prank. The IWF themselves have confirmed that no part of 4chan.org was ever on their list, what's more, it redirected users to the banned page (banned.php), whereas cleanfeed spoofs a 404 from the server a user is trying to access. I take it you've been on 4chan a while, so you'll know this is exactly the sort of thing moot would do, he'd think it was hilarious. --76.186.118.55 18:29, 2 December 2007 (UTC)
- I was wondering this too - the IWF also list material they think is "obscene", as well as incitement to racial hatred. Do we have a source that it is just images of child sexual abuse?
