Changes between Version 29 and Version 30 of doc/FAQUnanswered


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Timestamp:
Apr 23, 2010, 4:48:48 AM (9 years ago)
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trac
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  • doc/FAQUnanswered

    v29 v30  
    11This is a list of questions people wish were answered in the [:../TorFAQ]; please add some more.  Better yet answer one and move it to [:../TorFAQ].  Finally you can vote for a question to be answered by incrementing the number after the question in parens.
    22
    3 '''Please do not report bugs here; instead, use the [http://bugs.noreply.org/flyspray/index.php?tasks=all&project=4 bug tracker].'''  Soon, we'll designate one of the proposed bug servers as official, and you'll be able to post bugs there too.
     3Can Tor be used in a network that has NO DEFAULT ROUTE?  The only access method from this network is to use a traditional proxy.  Is there a way to chain proxies so that TOR requests are sent outbound via the standard proxy? (votes: 1)
    44
    5 Also, this is '''not the place''' for random ''it doesn't work'' or ''how do I do foo'' questions.  Support questions are really better asked and answered on the
    6 [http://archives.seul.org/or/talk/ or-talk mailinglist].  Also, always a good read: [http://www.catb.org/~esr/faqs/smart-questions.html How To Ask Questions The Smart Way].
     5Do I need both Tor AND Privoxy to browse hidden sites? Why? (votes: 4)
    76
    8 = Unanswered FAQ Questions =
     7Who's doing this? (votes: 1)
    98
    10 1) '''Why do I keep getting messages telling me that my clock has just jumped ahead and that my circuits will be assumed broken? ''(eg.
    11 Oct 02 10:14:53.619 [notice] Your clock just jumped 1056 seconds forward; assuming established circuits no longer work.'') I've got a cron job to sync the time every eight hours and it's never out by more than a second.'''
     9Can I help? (votes: 2)
    1210
    13 -- On my system, this happens when Vidalia gets into trouble. It seems that when tor and V communicate, tor can wind up waiting for V to respond, or for the V process to be killed.
     11I've got a bug, now what? (votes: 2)
    1412
     13So I'm totally anonymous if I use Tor? (votes: 1)
    1514
    16 2)'''If an attacker has access to past logs of ISP and any given visted site, does the prng of the tor client allow the attacker to guess which circuit it used next?'''
     15What attacks remain against onion routing? (votes: 1)
    1716
    18 Tor uses cryptographically strong random numbers provided by OpenSSL when choosing nodes to use in a circuit. How OpenSSL implements this is operating system specific. If there's a weakness in Tor's method of choosing nodes, it probably isn't in the random number generator.
     17What projects are comparable? (votes: 1)
    1918
    20 *** Hmm, if the prng is deterministic, and you can narrow one result of calling it by knowing what host was chosen, can you, knowing the algorithm, however good it is, thereby narrow the result of the next call to it?  This question might be a bit ignorant; for example the prng might use other data on the client computer instead of following an algorithm to return the next item.
     19What's Onion Routing? (votes: 1)
    2120
    22 *** Thanks for your comments, BTW, as a lot of us are wondering the answers to these FAQU.
     21How does Tor relate to the Freedom Project? (votes: 1)
    2322
    24 *** It has nothing todo with determinism. It is a matter of predictability. Without using real entropy, everything done on conventional computers should be deterministic (try teling that to people who use Windows ;). However, the part that we are interested in is whether someone can predict what Tor is going to next choose.
     23Protocol and application support - http? ftp? udp? socks? mozilla? (votes: 1)
    2524
    26   Cryptographic number generators have the property that they (shouldn't) give up their internal state by their external outputs quickly. So, unless the attacker gets to see a lot of outputs - node choices - without reseeding from real entropy they are pretty much screwed provided the cryptograpphic prng isn't broken.
     25My system clock is behind 3 days and I don't have permission to change it.  Therefore all the certificates are invalid.  Is there a runtime option to skew the time? (votes: 1)
    2726
     27Is there any way to forward an ident response via TOR so that the ident doesn't come back as whatever the end server wants, but your normal response? (votes: 1)
    2828
    29 '''Is there a signal i can send the tor client to tell it to switch circuits immediately?'''
    30 
    31 You can connect to Tor's control port and send "authenticateCRLFsignal newnymCRLF" where CRLF is a carriage return line feed pair.
    32 
    33 '''Why does Firefox/Privoxy/Tor return Privoxy 404 pages so frequently -- almost every time -- when properly configured, even on sites like google.com?  How to mitigate?  The tor process is running fine.'''
    34 (Votes: 2)
    35 
    36 The first problem is that Privoxy doesn't retry in case of
    37 DNS errors. It shows the 404 no such domain message right away.
    38 The second problem is that some browser cache Privoxy's error
    39 messages and Firefox is one of them.
    40 
    41 The Privoxy patch described at
    42 http://www.fabiankeil.de/sourcecode/privoxy/
    43 lets Privoxy retry in case of connection problems
    44 and makes sure, the browser doesn't reuse a cached
    45 error message.
    46 
    47 '''For that matter, why is DNS the main failure mode?  Who is timing out and why?  Can Tor (1) change the timeout, (2) deprecate bad servers, or (3) cache DNS locally so it doesn't have to make a long, slow, failure-prone DNS lookup every time?'''
    48 
    49 You should be sending hostnames to Tor over SOCKS4a or SOCKS5. In that case, the Tor exit node will resolve the hostname before making a connection for you. Unless the exit node is misconfigured, there shouldn't be a problem with DNS resolves timing out.
    50 
    51 *** Actually, for me this happens most of the time.  I am sending through Privoxy, and tried both sockses.  So why would I be hitting so many exit nodes that FREQUENTLY time out on DNS?  Firefox 1.5, most recent stable Tor.
    52 
    53 '''Is the reason that gmail rarely works: gmail, tor, privoxy, firefox, your own bandwidth/latency, tor's bw/latency, or some combination?  Is it fixable?'''
    54 
    55 *** For Gmail for me, it's even worse; I have to try 5 or 6 times before I get a page.
    56 
    57 -- I know that improvements to DNS handling are due in 1.2.x-final (see bug #364).
    58 
    59 '''Why is the argument against more than 3 hops that both-ends attacks are the enemy?  Wouldn't it be better to have more than 3 if the enemy cannot mount a both-ends attack?'''
    60 
    61 This is two questions, really.
    62 
    63 To understand it better, think from the perspective of an attacker. They have a choice: they can make a both-ends attack, an attack comprising the hops and both.
    64 
    65 Now, at this point you need to think what attacker you are trying to defend against. The NSA? Sorry, your screwed - find something else. A big company? Some rogue ISP's? Ok, now that's something that Tor may be able to defend against...
    66 
    67 Now, what information are you - the attacker - trying to find? Who is talking to who? Content of some transmissions? Both?
    68 
    69 Well, for finding content of transmissions your best way is to just listen in on some exit nodes.. or create some malicious ones. That's not the attack threat we're trying to defend against, then.
    70 For finding who is talking to who? Ok, let's say that's what we're trying to find out.
    71 
    72 From this perspective, what is needed to mount a both-ends attack? Listening on both ends. If there is some mitigation technique used - like random timing - compromising those both ends could come in handy (at this point, more hops would really be useful). But there isn't - AFAIK - and so we shall suppose that listening on both ends is enough.
    73 
    74 Now, what is the alternative option? Listening to all the hops AS WELL? Oh dear, that's a little harder.. and what does it bring us? Well, we can get slightly more accurate results - maybe - as we can more closely correlate. This, of course, gets yet better if we compromise some of those hops.
    75 
    76 The key word here is slightly. Provided the number of hops is a constant - so you can get a reasonably accurate latency estimate - then, over a longer enough period of time, you will be able to correlate and get your results.
    77 
    78 The key word here is slightly. Provided the number of hops is a constant - so you can get a reasonably accurate latency estimate - then, over a longer enough period of time, you will be able to correlate and get your results.
    79 
    80 So, yes, the hops will make it slightly more secure. But only slightly. And yes, in some cases, it may be really useful.. but in those cases, you probably should be using something with much stronger anonymity than tor (if someone knowing what your saying is unacceptable, don't use tor.. not, at any rate, on it's own).
    81 
    82 Now, then, what are the disadvantages to more hops? More bandwidth is used. Latency is increased.
    83 
    84 Despite this, it's possible that having number of hops as an easily configurable option is not a bad idea... I would guess that there is an excess of middle-man nodes with the recent draconian laws in some parts of the Western oh so free world that make people interested in privacy yet at the same time too scared to actually stick their neck out. In this case, Tor as a network would likely not lose much by doing that.
    85 
    86 *** I ommitted elaboration of the cases where more hops would be really useful (I think I forgot about it..). These cases are generally when traffic originating from an exit node is wanted to be tracked down and a response can be made quickly, but does not have global observer capabilities. In that case, in order to find the entry node, going through each hop is the only sensible solution in a network with > 50 servers. How much you would gain from extra hops is difficult to answer.. it would depend, I think, on how often circuits rotate and the probability of a hop being out of the grasp of the attackers. Hops are, I think, probably most useful when you - or your data - specifically are being targeted..
    87 
    88 '''How can I be sure that sending DNS through tor doesn't get spoofed sites?'''
    89 
    90 Use a method for authenticating the site you want to connect to, such as ensuring an SSL certificate is associated with the domain name and signed by a trusted authority, or verifying an SSH fingerprint out-of-band. Hidden services on Tor are not subject to this problem because their .onion names are self-authenticating as hashes of their public keys.
    91 
    92 '''How does tor relate to ipv6 and how should typical applications handle ipv6 if they use tor (or tor via Privoxy)?'''
    93 
    94 
    95 ---- /!\ '''Edit conflict - other version:''' ----
    96 Like a dog talking to a quasar... I never was good with similes.
    97 
    98 Tor carries TCP data (does it? Maybe it just carries some data that is then transported over TCP... I know, for instance, that it also contains IP and port... TCP doesn't) over another layer - currently IPv4. There is work to make Tor work with IPV6, but I am not aware of it being completed.
    99 
    100 As for how an application would interface with it -- depends. It could use SOCKS; in that case, I think it would have to use SOCKS5 in the event of addressing IPv6 (rather than domains). This could be hacked around by adding a .ipv6 domain - nasty.
    101 
    102 Privoxy? Same as currently, if it handles it..
    103 
    104 '''What version of libevent should I be using?'''
    105 
    106 the latest.  at least 1.1
    107 
    108 '''How to use Tor in squid? For using Tor on a network using Squid as proxy, for example...'''
    109 
    110 '''How to use Tor with PF (Packet Filter, found in OpenBSD, NetBSD, DragonFlyBSD and FreeBSD)?'''
    111 
    112 
    113 
    114 '''How does Tor work with tabbed browsing, say with Firefox?  Do these requests all follow the same circuit through the Tor network? Can an eavesdropper link a user across all sites opened simultaneously in tabs?'''
    115 
    116 ver 1.5 Works fine for me, I use No-Script Plugin to help be even safer. Anyone else have a problem with Firefox. Weither the request follow the same curcuit is out of my realm. My surfing experience is good to just fine. ProBastion
    117 
    118 They will most likely all use the same circuit.  http://wiki.noreply.org/noreply/TheOnionRouter/TorFAQ#ChangePaths
    119 
    120 '''When using the Tor/Privoxy configuration, is there an easy way to switch Privoxy between using Tor and using the standard connection (to allow for secure browsing, but also allowing a more direct connection when needed to keep large file transfers from bogging down in Tor)?'''
    121 
    122 It is possible to do this - however, it involves manually editing the config files for Privoxy, as well as possessing administrative/sudo access for your machine.  Also, once Privoxy is toggled to use a direct connection instead of Tor, your IP will be visible, and Privoxy does n ot provide as much security alone as it does with Tor.
    123 
    124 If you wish to do this, you will need to make a copy of your Privoxy config file, and comment out the line that causes Privoxy to use the Tor service.  Once you have done this, to switch over, just stop Privoxy, swap the config files, and restart it. You can also automate the process with a very simple shell script - an OSX version including sample config files and a shell script can be found [http://idlecircuits.com/privoxyswitcher.zip here], and the script can be used as an example for other *nix systems.
    125 
    126 -- In fact, there is no need to stop/restart privoxy. On my system, I have the privoxy config file owned by me, so I can edit it directly. Changing between tor and no-tor is as simple as editing one line.
    127 
    128 Here's the relevant lines from my privoxy config file:
    129 {{{
    130 # Tor:
    131 #
    132 ## forward-socks4a / localhost:9050 . 
    133 forward-socks4a .onion localhost:9050 .
    134 
    135 # Do not torrify these (high volume/speed concerns, as well as PhP BBS
    136 # systems that consider a changed IP to be a new login.):
    137 forward .blood-bowl.net .
    138 forward .qemu-forum.ipi.fi .
    139 }}}
    140 The line with "##" on it is the line to toggle. Remove those to enable tor, add them to disable tor.
    141 
    142 NB: Every PHP BBS site I've seen will consider you to have logged out and relogged in if your IP address -- as seen by the PHP site -- changes. This means that if tor ever switches circuits and changes exit node, those sites will reset your "unread messages". I have not been able to find a decent way to solve this with TrackHostExits, given that vidalia will overwrite my tor config occasionally (and has no support for adding these internally, so I have two editors trying to change the tor config), the length of time needed to track varies from 30 minutes at some (forced logout after thirty minutes of idle time) to 24 hours at others, dealing with the occasional dead exit node (and then you need to use a new exit node earlier), etc. And, my list of exception sites is currently 26 lines long.
    143 
    144 '''Tor works fine for POP3 email. But, Whistle-blowers and others who need anonymous
    145 political free speech must have reliable SSL smtp email services. How can Tor be used
    146 by them when *all* smtp ports, eg, ports 25, 465, 587, etc are now blocked by Tor exit
    147 servers? Blocking port 25 helps to defeat spammers, but the smtp SSL/TLS ports are not
    148 generally not used by them. Is there any solution with Tor to help the free speech folk
    149 and others who need to use secure, reliable smtp services? (votes: 6)'''
    150 
    151 
    152 '''How would one route his email through Tor? My email client (Microsoft Entourage for Mac OS X) has support for SOCKS and TUNNEL proxies, but setting my mail proxy for SOCKS 127.0.0.1 port 9050 or 8118 both produces errors when trying to proxy to SSL SMTP servers via port 25. What am I missing here? Also, setting this proxy doesn't seem to affect incoming POP3 SSL mail, but only affects outgoing mail, albeit without success. A little guidance on how to configure POP3 email clients to use Tor would be much appreciated!'''
    153 
    154 An attempt to answer the smtp email questions above: The Tor exit servers are likely blocking smtp port 25 in an attempt to stop spammers. Some Tor exit servers *sporadically* allow TLS/SSL smtp over ports 587, 995, etc., but at the present time there is no consistent, reliable policy or service.  (Also your remote email provider must support the use of alternate smtp ports such as those above.) You could use the remailer network but there can be reliability problems with them. Of greater importance is the fact that the remailer network does NOT accept large messages, e.g., scanned documents which can easily be many MB each. If you are a whistleblower or other person who needs to send large documents quickly and anonymously, you have a real problem. At this moment, Tor is not the answer.
    155 
    156 
    157 '''Can Tor be used in a network that has NO DEFAULT ROUTE?  The only access method from this network is to use a traditional proxy.  Is there a way to chain proxies so that TOR requests are sent outbound via the standard proxy? (votes: 1)'''
    158 
    159 Maybe. If you can get some routes for the Tor servers, then that of course is great.... assuming it must go through the proxy, however, it will need to support sending Tor requests.
    160 
    161 Assuming it does.. AFAIK, Tor doesn't have built-in support directly for this. So, you'll have to make it look to Tor like it really can connect .. err.. normally.
    162 
    163 I can see several ways of doing this.
    164 
    165 You could overload the network commands and have them actually connect to the proxy.. that's easy but a hack.
    166 
    167 You could try doing something with OpenVPN; personally, I don't have any experience with it... but I'm guessing you could do something neat with it (I remember someone setting up an OpenVPN with Tor being used to route things.. so it supports socks, I think, in some way. In that case, assuming the proxy is socks... all done :) Oterwise, you could write an interface to make it socks).
    168 
    169 
    170 '''Can I help? (votes: 2)'''
    171 
    172 http://tor.eff.org/volunteer.html
    173 
    174 '''I've got a bug, now what? (votes: 2)'''
    175 
    176 '''How does Tor relate to the Freedom Project? (votes: 1)'''
    177 
    178 '''Is there any way to forward an ident response via TOR so that the ident doesn't come back as whatever the end server wants, but your normal response? (votes: 1)'''
    179 
    180 no.
    181 
    182 '''How can I uninstall tor? (votes: 1)'''
    183 
    184 
    185 
    186 
    187 '''I have legal questions about running Tor. Is there anybody I can contact? ( votes: 1)'''
    188 
    189 Added 2.1.06- The Developers do not provide Legal advice. period! Over at the Tor Legal FAQ there is a written section by EFF lawyers. It aims to give you an overview of some of the legal issues that arise from the Tor project. Read the Disclaimer. The FAQ does provide a dialougue on the legalality & posssible scenarios of operating a Tor Server. They also provide you with contact information to a EFF Lawyer. The Tor FAQ also provides a links to an Abuse FAQ, & Tor Technical FAQ Wiki.  See this address for more information along these lines. http://tor.eff.org/faq.html
    190 
    191 
    192 '''If I set up Tor to only act as a router node (reject *:* in torrc) can I still be a contact point for hidden services?'''
    193 
    194 yes.
    195 
    196 '''Can anonymity be broken if all Tor servers in the chain are compromised/malicious and so are keeping logs to trace the chain?'''
    197 
    198 Yes. Indeed, if all the servers in a circuit are compromised then they need not even be communicated with.. the entry node can decipher for all the (possibly even non-existent) nodes. In order to maintain a superficial view of anonymity, it would probably be good to forward it to the exit server however.
    199 
    200 '''What system resources does a TOR server use?  The FAQ already dicusses memory a bit.  What about CPU?  Encryption is CPU-intensive.  Specific question I'd like answered: I'll be setting up a TOR node bandwidth-limited to about 256kbps (half my upstream bandwidth).  Will an old 300MHz G3 Mac easily handle this, or will a faster processor be needed? How 'bout a P90?  Presumably, TOR's disk usage and I/O is minimal.''' (Votes: 1)
    201 
    202 
    203 == Cannot resolve Foo.onion/Resolve requests to hidden services not allowed ==
    204 
    205 tor-resolve doesnt seem to work, i get this:
    206 {{{connection_ap_handshake_process_socks():  Resolve requests to hidden services not allowed. Failing.}}}
    207 from the copy of tor running locally. Please help!
    208 
    209 (from original questioner: thank you.  I got the mistaken idea that this would work because it is suggested in the 'how to torrify an application' article on this wiki.  It makes more sense now.  Someone who understands better might want to upate that document)
    210 
    211 This question is answered; see 'How Do I Access Tor Hidden Servers.'  You get this message when you try to use tor-resolve to resolve the address of a hidden service.  But hidden services are ''hidden'' - they don't *have* an IP address you can use.  Instead, you need to pass the hostnames to Tor directly.
    212 
    213 == Clock Skew ==
    214 My system clock is behind 3 days and I don't have permission to change it.
    215 Therefore all the certificates are invalid.
    216 Is there a runtime option to skew the time?
    217 
    218 This should not a problem as of 0.0.9pre6.
    219 
    220 == Does not connect to port xyz ==
    221 All of a sudden, Tor will no longer let me connect to my distant smtp server.
    222 The smtp port used is 587 and the connection is SSL. Why is this now happening?
    223 
    224 587 isn't in the default exit policy. The tor node known as bollox had an
    225 accept everything policy so your port 587 requests would have always gone through that.
    226 As bollox is no longer around there are no exit nodes that allow port 587. If you
    227 control this smtp server, try changing it's port number to something over 1024.
    228 
    229 == Debian and how to use the package management system ==
    230 
    231 Also would recomend posting default config files for debian online since apt will not reinstall them if they are removed (/etc/init.d/tor and /etc/torrc for example)
    232 
    233 '''Answer''': RTFM.  dpkg differentiatea between two states of package removal.
    234 There's ''remove'', which will just remove the normal files a package comes with,
    235 and there's ''purge'', which will remove configuration files also.  Changes to your
    236 configuration (like you removing them) are kept over a remove/install cycle.  If
    237 you want them to installed anyway, you should install with
    238 {{dpkg --force-confmiss --install tor...deb}}
    239 or just purge tor (which will delete /var/lib/tor with its keys if you are a server!), and then install it again.
    240 
    241 == . ==
    242 After uninstalling everything then reinstalling on debian (using apt-get of course) nothing loads in a browser or anything, eventually a 503 will come up.  Tor is running and privoxy is running, both correctly configured(I think).  If this is a configuration problem, where can I find more information about configuration in debian?
    243 
    244 '''Answer''': Duh.  Have you checked out {{{/etc/tor}}}?  What about {{{/var/log/tor}}} and {{{/usr/share/doc/tor}}}?  Why do you think it would be any different than on other OSs?
    245 
    246 == Privoxy config ==
    247 
    248 Similar to above, on brand new install of sarge with tor and privoxy browser, gaim, etc will spend a long time trying to connect eventually failing with 503, if tor is not running a 503 is instant.
    249 
    250 '''Answer''': Privoxy by default does not allow CONNECT to ports other than 443.  Fix your privoxy config.
    251 
    252 {{{weasel@galaxy:/etc/privoxy$ grep limit.con default.action | grep -v '^#'
    253 +limit-connect{1-} \
    254 }}}
    255 
    256 (If someone writes a proper question, this might actually go into the FAQ)
    257 
    258 == How To Configure One's Web Browser So Tor Is Only Used For Some Sites But Not Others ==
    259 '''Question''': Can I configure Tor so it will only use the onion routing network for some sites but not others?
    260 
    261 '''Answer''': No, Tor itself is all or nothing, a request either goes through it or it does not.
    262 
    263 Privoxy is also all or nothing in the sense that if a request has made it to Privoxy then either Privoxy is set up to go through Tor or it's not, there does not appear to be a way to program Privoxy so it will use Tor for some requests but not others.
    264 
    265 There is a script for OS X, available [http://idlecircuits.com/privoxyswitcher.zip here], that will make it such that Privoxy never uses Tor but this is an 'all or nothing' mechanism. The script will either start Privoxy such that all requests go through Tor or no requests go through Tor.
    266 
    267 There is one mechanism that is at least useful for web browsers, it's called a pac file. It was invented by Netscape, the original documentation is available [http://wp.netscape.com/eng/mozilla/2.0/relnotes/demo/proxy-live.html here], but it is now supported by all major browsers. One can use a pac file to program the browser to use the Privoxy proxy for certain requests but not others. For example, the following pac file will cause all requests to Google or to the special Privoxy configuration addresses to be sent to Privoxy (and hence Tor) but will allow other other requests to go out without Privoxy/Tor being used:
    268 
    269 {{{
    270 function FindProxyForURL(url, host) {
    271         if (shExpMatch(host,"*google.*") ||
    272             shExpMatch(host,"config.privoxy.org") ||
    273             shExpMatch(host,"p.p"))
    274                 return "PROXY 127.0.0.1:8118";
    275         return "DIRECT";
    276 }
    277 }}}
    278 
    279 To configure Firefox to use a pac file under OS X go to Firefox->preferences->General->Connection Settings...->Automatic proxy configuration URL:. Enter in a URL (you can use file:// to point to a local file) that points to your pac file and click reload.
    280 
    281 It's probably not a good idea to use pac files with Safari on OS X as its pac file support seems to be more than a little buggy.
    282 
    283 The pac file solution is far from ideal. It won't apply to non-web access and it runs into problems such as the bad pac file support in Safari. It also is not secure. A malicious website can trivially bypass this mechanism by placing pictures on its website from domains that it controls but are unlikely to be on a 'black list'. Therefore this mechanism is only useful with Websites that are not in and of themselves malicious but rather, due to their nature, can collect substantial amounts of personal information that one would rather not release. A search engine is a classic example. If and when privacy is a critical concern then the only proper course of action is to get rid of the pac file and instead configure all connections to go through privoxy/tor.
    284 
    285 
    286 
    287 '''I've been banned as an contributor at Slashdot! I run a Win 2003 server, with a decent pipe. They said that if I blocked them they would let me contribute again. I did an edit on my torrc file by adding a line:
    288 
    289 reject *:66.35.250.150 (which is Slashdot.com by using an online DNS 'dig' page
    290 
    291 I add the above right after my default exit. Which was just this:
    292 #ExitPolicy accept *:6660-6667,reject *:* # allow irc ports but no more
    293 ExitPolicy accept *:119 # accept nntp as well as default exit policy
    294 #ExitPolicy reject *:* # middleman only -- no exits allowed
    295 reject *:66.35.250.15
    296 
    297 Is this the way to do this, and just block Slashdot? Any help would be helpful, I've googled, did the tor.eff site, etc. But I'm not real UNIX centric (though thats changing) so just wanted to run it by some community persons. '''
    298 
    299 
    300 Well, you don't appear to allow exits on HTTP ports so I don't know why they blocked you. Fascists? [Ed. Fascists put their belief into the state... I doubt Slashdot does. Really, it's authoritarian]
    301 
    302 Anyway, you should probably block their IP rather than ports that happen to be theirs ;) (which don't exist - surprised tor let you do that..)
    303 
    304 
    305 '''What is the significance of the changes in the Bittorrent Torify HOWTO?'''
    306 
    307 I noticed I can't connect with btdownloadcurses through proxychains any more. Looking for answers, I went back to the Torify HOWTO and noticed that it had been altered. Where it used to explain about using proxychains to run bittorrent through TOR, which I used successfully for over a year, it now says that Bittorrent "uses a mechanism similar to TOR." That was certainly news to me. How is the generic Bittorrent client technically similar to TOR in any way? I have always heard that the generic Bittorrent client offers almost no anonimity at all. Now I'm reading that Bittorrent and TOR are practically the same thing and it would be redundant to use them together. Seems a bit curious.
    308 
    309 As a sub-question, let me just ask directly: Is it true that Bittorrent through TOR via proxychains no longer works?
    310 
    311 Also, the same page now mentions a technique of using Tor to connect to the tracker only, as opposed to the peers, by including the line --tracker-proxy 127.0.0.1:8118: on the command line. However, I see no documentation of this option in the btdownloadcurses client and I find it a bit suspicious that the format of this option uses a hyphen rather than an underscore as all the other command line options that are listed as being compatible with btdownloadcurses use underscores to separate options with two words such as --check_hashes <arg> or --report_hash_failures <arg>. Is that a typo or an undocumented option that just happens to deviate from the naming convetion of all the other options?
    312 
    313 '''How do you start and stop Tor and Privoxy in OS X (Panther) if you did not install the startup script? (needs to be added to installation instructions)'''
    314 
    315 '''How do you configure the proxy if you are using Tor and Privoxy in OS X (Panther) with a router's firewall and the built-in OS X firewall, e.g. when using Wi-fi to connect to wireless router?  (needs to be added to installation instructions)'''
    316 
    317 '''What to do (troubleshooting) if browsing slows to a crawl with Tor and Privoxy running in OS X?'''
    318 
    319 
    320 '''I am running a Tor server on one computer on a network. Can I stop the other PCs on the same network from being k-lined on QuakeNet?'''
    321 
    322 '''Would it make sense to support binding to multiple ports in Tor server (e.g. to bind to ports 443, 22, 5190 etc.) for clients behind _really_ restrictive firewalls? If this was implemented one day, maybe you could also support binding to multiple specific IP addresses on multihomed servers?'''
    323 
    324 
    325 ----
    326 CategoryHomepage
     29How can I uninstall tor?