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These are the user uploaded subtitles that are being translated: 1 00:00:00,420 --> 00:00:06,150 Toll bridges because the consensus list of relays is available to everyone. 2 00:00:06,270 --> 00:00:08,330 It's easy for a government. 3 00:00:08,370 --> 00:00:16,530 A law enforcement agency or any network or adversary to block you from using Tor by blocking all of 4 00:00:16,530 --> 00:00:19,700 the relays that are in the consensus. 5 00:00:19,800 --> 00:00:28,250 A bridge is an unpublished relay to attempt to solve the problem of the toll relays being blocked the 6 00:00:28,260 --> 00:00:33,030 bridge becomes your first relay instead of the guard relay. 7 00:00:33,030 --> 00:00:40,110 You might need to use a bridge if using Tor is blocked by censorship or using Torrey's dangerous where 8 00:00:40,110 --> 00:00:46,130 you are it's illegal where you are or it's considered suspicious to your adversaries. 9 00:00:46,230 --> 00:00:53,670 If you live in an uncensored area bridges are not necessarily more secure than using a normal entry 10 00:00:53,670 --> 00:00:55,730 guard at all project. 11 00:00:55,740 --> 00:01:03,990 The pace that you can see in front of you now called Bridges provides the details of a few bridges at 12 00:01:03,990 --> 00:01:08,350 a time to stop all the bridges from being known. 13 00:01:08,520 --> 00:01:12,090 You can get new bridges from this you are real here. 14 00:01:12,150 --> 00:01:14,660 So you click on here. 15 00:01:14,970 --> 00:01:19,250 Now you have the option to just get normal Bridger's by clicking here. 16 00:01:19,260 --> 00:01:26,490 Vanilla bridges as they call them all if you want to use pluggable transports and bridges and or IP 17 00:01:26,520 --> 00:01:29,120 V-6 then you come down here. 18 00:01:29,190 --> 00:01:34,910 We will discuss what pluggable transports are shortly to offer the advanced ones here. 19 00:01:35,130 --> 00:01:37,230 So let's go on here. 20 00:01:37,290 --> 00:01:38,160 Fill us in 21 00:01:44,460 --> 00:01:46,170 and there are three bridges there. 22 00:01:46,170 --> 00:01:50,640 Ip address the port that they use and their ID. 23 00:01:50,670 --> 00:01:57,050 If you can't read this you Arel then send an email from a G-mail or a Yahoo account. 24 00:01:57,120 --> 00:02:06,570 That only works for those currently two bridges at Tor projects dot org with get bridges in the message 25 00:02:06,570 --> 00:02:10,770 body and they will send you some bridges like this. 26 00:02:10,770 --> 00:02:16,610 Bridges are generally less reliable and slower than Guard relays. 27 00:02:16,650 --> 00:02:18,420 So now we need to use these. 28 00:02:18,420 --> 00:02:22,070 Let me show you how to put these into your browser. 29 00:02:22,200 --> 00:02:25,760 Select them copy. 30 00:02:26,400 --> 00:02:28,370 And here we are in the Tor browser. 31 00:02:28,560 --> 00:02:35,460 You come here to our network settings my internet service branded ISP blocks connections to the whole 32 00:02:35,460 --> 00:02:40,310 network and to custom Brydges paste. 33 00:02:40,470 --> 00:02:41,750 And thats it. 34 00:02:41,840 --> 00:02:48,000 OK let's try a search. 35 00:02:50,020 --> 00:02:52,230 And that was actually pretty quick. 36 00:02:52,230 --> 00:02:55,420 Often your bridges can be a little slow. 37 00:02:55,510 --> 00:03:02,800 There you can see the circuit checked to see whether we are on tour successfully. 38 00:03:02,970 --> 00:03:10,960 And yes we are going in the United States through France and out of Ukraine. 39 00:03:11,430 --> 00:03:19,020 If your adversary was able to get a hold of the full bridge list they would effectively be able to block 40 00:03:19,090 --> 00:03:21,120 toll if interested. 41 00:03:21,120 --> 00:03:26,720 There are a couple of papers here about how that very thing might be done. 42 00:03:26,760 --> 00:03:31,190 This one here and also this one here. 43 00:03:31,320 --> 00:03:38,460 The obvious way is to scan the whole internet continuously using tools like Zend map which make the 44 00:03:38,460 --> 00:03:40,850 job quite easy. 45 00:03:40,860 --> 00:03:46,290 This is Zen map if you're not aware it's an open source network scanner that enables people to perform 46 00:03:46,350 --> 00:03:49,860 internet wide network studies. 47 00:03:49,860 --> 00:03:58,080 This paper reveals one group was able to identify at one point seventy nine to 86 percent of the total 48 00:03:58,080 --> 00:04:05,040 toll bridges the likes of the Chinese government and other censoring nations will likely be doing the 49 00:04:05,040 --> 00:04:10,300 same sort of tricks or will be doing soon. 50 00:04:10,320 --> 00:04:15,780 You can set up your own bridge to help yourself or others bypass censorship. 51 00:04:15,780 --> 00:04:19,580 Debian would be the best operating system to use. 52 00:04:19,590 --> 00:04:26,760 There's also Unix which we have gone through which is an option as it is built to be a relay and a bridge 53 00:04:26,760 --> 00:04:27,130 . 54 00:04:27,210 --> 00:04:31,580 And of course is Debian with turnkey Linux. 55 00:04:31,590 --> 00:04:40,020 You could up and down servers extremely fast to prevent your Brydges from being blocked or found turnkey 56 00:04:40,020 --> 00:04:40,260 . 57 00:04:40,260 --> 00:04:45,780 As you probably know already as a service I recommend integrate with Amazon Web Services and you can 58 00:04:45,780 --> 00:04:52,000 deploy Brydges very quickly literally in minutes and then take them down or stop them. 59 00:04:52,080 --> 00:04:56,840 Once you've finished using them a bit of a warning here. 60 00:04:56,880 --> 00:05:01,500 If someone offers to help you out of your censorship problem here you don't. 61 00:05:01,500 --> 00:05:08,120 A hundred percent trust by giving you a toll bridge to help you access to Tor. 62 00:05:08,130 --> 00:05:16,650 Be aware this could be a monitored bridge and a deliberate trap so avoid if getting caught for using 63 00:05:16,650 --> 00:05:23,290 Tor has serious consequences for you where you walk tall bridges are not recommended by me. 64 00:05:23,430 --> 00:05:31,170 They are only a short term workaround and any adversary of sophistication will identify that you're 65 00:05:31,200 --> 00:05:37,980 using a bridge if they happen to observe the traffic is not really that difficult for them. 66 00:05:37,980 --> 00:05:45,780 Well the option is to bypass Tor being blocked which might be safer than using Brydges includes tunneling 67 00:05:45,780 --> 00:05:55,900 toll through all the privacy and anonymity services like BP ends Nesta VPN or S-sh or using an offsite 68 00:05:55,920 --> 00:06:04,910 connection which we cover in its own section but only if using those has no consequences as well. 69 00:06:05,340 --> 00:06:12,090 So that's bridges on listed relays to help avoid censorship and to enable you to use Tor. 70 00:06:12,270 --> 00:06:18,510 If it is dangerous illegal or considered suspicious to do so where you are 7508