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Tor Onion Router blocked by China – again. Torproject to defeat Chinas DPI-based block soon

7 January, 2012 by anonymous!
networkThe Tor Onion Router privacy software is currently blocked by the Great Firewall of China. Investigation done by the Torproject indicates that China is using deep packet inspection to enumerate Tor connections going to and from the country using Tors own cipher list (bug #4744). This inspection reveals both bridge and router connections. China then makes a follow-up connection to bridges when they are detected to determine that they actually are bridges. Tor bridges are blocked immediately after this test. Roger Dingledine and Jacob Appelbaum gave some details on this at 28c3. The number of direct Tor users in China flat-lined long ago. The number of bridge users in China is currently dropping dramatically as seen on this graph:...
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28c3: How governments have tried to block Tor (video)

30 December, 2011 by anonymous!
tor-28c3Roger Dingledine and Jacob Appelbaum held a very interesting talk about how governments around the world are blocking the Tor Onion Router privacy tool at this years Chaos Communication Congress. The video is very interesting and worth viewing. Mr. Dingledine and Mr. Appelbaum lay out the technical details on how tyrannical regimes are blocking Tor. They also make the point that surveillance is a much bigger and more serious problem than web censorship. You do not see surveillance, but you do notice when web sites are blocked. Tyrannically controlled countries like Norway do not block websites, they just covertly torture those who write something "bad" on the Internet. They also point out that the worlds most tyrannical countries surveillance systems are dependent on cooperation with known western terrorist organizations like Intel, ...
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Tor versions <0.2.2.35 have a critical heap-overflow security problem

17 December, 2011 by anonymous!
onionThe Tor Onion Router project just released two new versions of Tor. Stable version 0.2.2.35 and alpha version 0.2.3.10 fixes a "critical" heap-overflow security issue in Tor's buffers code. The "official" Tor blog warns that "Absolutely everybody should upgrade". The official story as presented by "erinn" is: The bug relied on an incorrect calculation when making data continuous in one of our IO buffers, if the first chunk of the buffer was misaligned by just the wrong amount. The miscalculation would allow an attacker to overflow a piece of heap-allocated memory. To mount this attack, the attacker would need to either open a SOCKS connection to Tor's SocksPort (usually restricted to localhost), or target a Tor instance configured to make its connections through a SOCKS proxy (which Tor does not do by default). Good ...
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Tor Operations Security – tips and tricks

14 December, 2011 by anonymous!
secure_beneath_the_watchful_eyesA message which appeared on the Tor mailing list titled "Tor OPSEC - Operational Security - Great Resource of Information! " has a whole range of very interesting and useful tips regarding the Tor Onion Router. It began as a discussion on the Ubuntu forums. These discussions became a long summary of practical information. The following is a cut and paste of this message with a few cosmetic changes to make it suitable for a blogpost. Date: Tue, 13 Dec 2011 18:39:22 -0500 To: tor-talklists.torproject.org Subject: Tor OPSEC - Operational Security - Great Resource of Information!

"First, I want to use TOR to download .pdf files"

First, how have you setup Tor? (it's not TOR btw, it's Tor) Have you installed the Tor Browser Bundle? (TBB) It contains a (limited) preconfigured Tor environment (you ...
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Tor 0.2.3.9-alpha adds IPv6 bridge support

13 December, 2011 by anonymous!
onionThe latest alpha version of the Tor Onion Router adds IPv6 support for bridges to the Tor network. Those who run bridges need both IPv4 and IPv6 to make a bridge available over IPv6, Tor still requires IPv4 to participate in the network. Those who connect to bridges using IPv6 will be able to connect to the whole Internet without having IPv4 themselves. The Offical Story as presented by Roger Dingledine is: Tor 0.2.3.9-alpha introduces initial IPv6 support for bridges, adds a "DisableNetwork" security feature that bundles can use to avoid touching the network until bridges are configured, moves forward on the pluggable transport design, fixes a flaw in the hidden service design that unnecessarily prevented clients with wrong clocks from reaching hidden services, and fixes a wide variety of other issues. https://www.torproject.org/download/download (Packages coming eventually.) Changes ...
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Tails, a Debian-based Tor-secured Live-USB solution

1 October, 2011 by anonymous!
tailsTails is a bootable Debian-based operating system designed to put on a USB-stick. Those who still think it's 1999 and actually use CDs can burn it to one of those. Tails comes with the GNOME 2 desktop and a basic set of applications who are all pre-configured to be used with the Tor anonymity network. Version 0.8 features Iceweasel 3.5.16 (Firefox-based), claws mail and pidgin. It also includes more powerful applications like OpenOffice, GIMP, inkscape, totem, audacity, pitivi and a few others. Tails can therefore be used to do everything from image and video editing to spreadsheets. Touchscreen users will be happy to hear that a virtual keyboard ...
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/b/ Guide for Tor v 1.0.1

28 September, 2011 by anonymous!
1317177358314
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ARM Tor status monitor v1.4.2

5 April, 2011 by anonymous!
arm_tor_analyzer_status_reportARM stands for anonymizing relay monitor and it is a ncurses based terminal application which spews out all sorts of incriminating evidence regarding the status of your Tor-server. ARM basically shows you some nice bandwidth graphs along with Tor's bandwidth graphs. It's, honestly, not very useful. It does put a fancy console picture on your screen, and some people like to look at basic graphics on a black background. If you like that then you'll love ARM. ARM has four pages, you can navigate them with the arrow keys. Page one shows Tor's log. Page two shows open IP connections. Page three shows all possible Tor configuration options, and page four shows your current torrc. Official Damian Johnson version 1.4.2 release story is: Hi, the next release of arm is now available. This one was focused ...
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