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5) #include "head.wmi" TITLE="Tor Project: Relay Configuration Instructions" CHARSET="UTF-8"
6) <div id="content" class="clearfix">
7)   <div id="breadcrumbs">

8)     <a href="<page index>">Home &raquo; </a>

9)     <a href="<page docs/documentation>">Documentation &raquo; </a>
10)     <a href="<page docs/tor-doc-relay>">Configure Tor Relay</a>

11)   </div>
12)   <div id="maincol">

13) 
14)     <h1>Configuring a Tor relay</h1>

15) 

16)     <hr>

17) 

18)     <p>
19)     The Tor network relies on volunteers to donate bandwidth. The more
20)     people who run relays, the faster the Tor network will be. If you have

21)     at least 30 kilobytes/s each way, please help out Tor by configuring your

22)     Tor to be a relay too.

23)     </p>

24) 

25)     <p>You can run a Tor relay on pretty much any operating system. Tor relays
26)     work best on Linux, OS X Tiger or later, FreeBSD 5.x+, NetBSD 5.x+, and
27)     Windows Server 2003 or later.

28)     </p>

29) 

30)     <hr>

31)     <a id="zero"></a>
32)     <a id="install"></a>
33)     <h2><a class="anchor" href="#install">Step One: Download and Install Tor</a></h2>

34)     <br>

35) 

36)     <p>Before you start, you need to make sure that Tor is up and running.
37)     </p>

38) 

39)     <p>Visit our <a href="<page download/download>">download page</a> and

40)     install the "Installation Bundle" for your OS.
41)     </p>

42) 

43)     <p>If it's convenient, you might also want to use it as a client for a
44)     while to make sure it's actually working.</p>

45) 

46)     <hr>

47)     <a id="setup"></a>
48)     <h2><a class="anchor" href="#setup">Step Two: Set it up as a relay</a></h2>

49)     <br>

50)     <ol>
51)     <li>Verify that your clock and timezone are set
52)     correctly. If possible, synchronize your clock with public <a
53)     href="http://en.wikipedia.org/wiki/Network_Time_Protocol">time
54)     servers</a>.
55)     </li>

56) 

57)     <li><strong>Manual Configuration</strong>:

58)     <ul>

59)     <li>Edit the bottom part of <a href="<page docs/faq>#torrc">your
60)     torrc file</a>. If you want to be a public relay (recommended),
61)     make sure to define ORPort and <a href="<page
62)     docs/faq>#ExitPolicies">look at ExitPolicy</a>; otherwise

63)     if you want to be a <a href="<page docs/faq>#RelayOrBridge">bridge</a>

64)     for users in countries that censor their Internet,
65)     just use <a href="<page docs/bridges>#RunningABridge">these lines</a>.
66)     </li>

67)     </ul></li>

68) 

69)     <li><strong>Configuring Tor with the Vidalia Graphical Interface</strong>:
70)     <ol>

71) 

72)     <li>
73)     	<dt>Right click on the Vidalia icon in your task bar.  Choose <tt>Control Panel</tt>.</dt>

74)     	<dd><img alt="vidalia right click menu" src="$(IMGROOT)/screenshot-win32-vidalia.png" /></dd>

75)     </li>

76) 

77)     <li>Click <tt>Setup Relaying</tt>.</li>

78) 

79)     <li>

80)     	<dt>Choose <tt>Relay Traffic for the Tor network</tt> if you

81) want to be a public relay (recommended), or choose <tt>Help

82) censored users reach the Tor network</tt> if you want to be a <a

83) href="<page docs/faq>#RelayOrBridge">bridge</a> for users in countries
84) that censor their Internet.</dt>

85)     <dd><img alt="vidalia basic settings" src="$(IMGROOT)/screenshot-win32-configure-relay-1.png" /></dd>

86)     </li>

87) 

88)     <li>Enter a nickname for your relay, and enter contact information in
89)     case we need to contact you about problems.</li>

90) 

91)     <li>Leave <tt>Attempt to automatically configure port forwarding</tt> clicked.
92)     Push the <tt>Test</tt> button to see if it works.  If it does work, great.
93)     If not, see number 3 below.</li>

94) 

95)     <li><dt>Choose the <tt>Bandwidth Limits</tt> tab.  Select how much bandwidth you want to provide for Tor users like yourself.</dt>

96)     <dd><img alt="vidalia bandwidth limits" src="$(IMGROOT)/screenshot-win32-configure-relay-2.png" /></dd>

97)     </li>
98) 

99)     <li><dt>Choose the <tt>Exit Policies</tt> tab.  If you want to allow others
100)     to use your relay for these services, don't change anything.  Un-check

101)     the services you don't want to allow people to <a href="<page
102)     docs/faq>#ExitPolicies">reach from your relay</a>.  If you want to
103)     be a non-exit relay, un-check all services.</dt>

104)     <dd><img alt="vidalia exit policies" src="$(IMGROOT)/screenshot-win32-configure-relay-3.png" /></dd>

105)     </li>

106) 

107)     <li>Click the <tt>Ok</tt> button.  See Step Three below for confirmation
108)     that the relay is working correctly.</li>
109)     </ol>

110) 

111)     <li>If you are using a firewall, open a hole in your firewall
112)     so incoming connections can reach the ports you configured
113)     (ORPort, plus DirPort if you enabled it). If you have a
114)     hardware firewall (Linksys box, cablemodem, etc) you might like <a
115)     href="http://portforward.com/">portforward.com</a>. Also, make sure you
116)     allow all <em>outgoing</em> connections too, so your relay can reach the
117)     other Tor relays.
118)     </li>

119) 

120)     <li>Restart your relay. If it <a

121)     href="<page docs/faq>#Logs">logs

122)     any warnings</a>, address them.
123)     </li>

124) 

125)     <li>Subscribe to the <a

126)     href="https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-announce">tor-announce</a>

127)     mailing list. It is very low volume, and it will keep you informed
128)     of new stable releases. You might also consider subscribing to <a
129)     href="<page docs/documentation>#MailingLists">the higher-volume Tor lists</a>

130)     too.</li>
131)     <li><a href="https://weather.torproject.org/">Tor Weather</a> provides
132)     an email notification service to any users who want to monitor the
133)     status of a Tor node. Upon subscribing, you can specify what types of
134)     alerts you would like to receive. The main purpose of Tor Weather is
135)     to notify node operators via email if their node is down for longer
136)     than a specified period, but other notification types are available.

137)     </li>

138) 

139)     </li></ol>

140) 

141)     <hr>

142)     <a id="check"></a>
143)     <h2><a class="anchor" href="#check">Step Three: Make sure it is working</a></h2>

144)     <br>

145) 

146)     <p>As soon as your relay manages to connect to the network, it will
147)     try to determine whether the ports you configured are reachable from
148)     the outside. This step is usually fast, but may take up to 20

149)     minutes. Look for a <a href="<page docs/faq>#Logs">log entry</a> like

150)     <tt>Self-testing indicates your ORPort is reachable from the outside. Excellent.</tt>
151)     If you don't see this message, it means that your relay is not reachable
152)     from the outside &mdash; you should re-check your firewalls, check that it's
153)     testing the IP and port you think it should be testing, etc.
154)     </p>

155) 

156)     <p>When it decides that it's reachable, it will upload a "server
157)     descriptor" to the directories, to let clients know
158)     what address, ports, keys, etc your relay is using. You can <a
159)     href="http://194.109.206.212/tor/status-vote/current/consensus">load one of
160)     the network statuses manually</a> and
161)     look through it to find the nickname you configured, to make sure it's
162)     there. You may need to wait up to one hour to give enough time for it to
163)     make a fresh directory.</p>

164) 

165)     <hr>

166)     <a id="after"></a>
167)     <h2><a class="anchor" href="#after">Step Four: Once it is working</a></h2>

168)     <br>

169) 

170)     <p>
171)     We recommend the following steps as well:
172)     </p>

173) 

174)     <p>
175)     6. Read

176)     <a href="<wiki>doc/OperationalSecurity">about operational security</a>

177)     to get ideas how you can increase the security of your relay.
178)     </p>

179) 

180)     <p>
181)     7. If you want to run more than one relay that's great, but please set <a

182)     href="<page docs/faq>#MultipleRelays">the

183)     MyFamily option</a> in all your relays' configuration files.
184)     </p>

185) 

186)     <p>
187)     8. Decide about rate limiting. Cable modem, DSL, and other users
188)     who have asymmetric bandwidth (e.g. more down than up) should
189)     rate limit to their slower bandwidth, to avoid congestion. See the <a

190)     href="<wikifaq>#LimitBandwidth">rate

191)     limiting FAQ entry</a> for details.
192)     </p>

193) 

194)     <p>
195)     9. Back up your Tor relay's private key (stored in "keys/secret_id_key"
196)     in your DataDirectory). This is your relay's "identity," and
197)     you need to keep it safe so nobody can read the traffic that goes
198)     through your relay. This is the critical file to keep if you need to <a

199)     href="<wikifaq>#UpgradeRelay">move

200)     or restore your Tor relay</a> if something goes wrong.
201)     </p>

202) 

203)     <p>

204) 

205)     10. If you control the name servers for your domain, consider setting your
206)     reverse DNS hostname to 'anonymous-relay', 'proxy' or 'tor-proxy', so when
207)     other people see the address in their web logs, they will more quickly
208)     understand what's going on. Adding the <a
209)     href="<gitblob>contrib/tor-exit-notice.html">Tor
210)     exit notice</a> on a vhost for this name can go a long way to deterring abuse
211)     complaints to you and your ISP if you are running an exit node.

212) 

213)     </p>

214) 

215)     <p>
216)     11. If your computer isn't running a webserver, please consider
217)     changing your ORPort to 443 and your DirPort to 80. Many Tor
218)     users are stuck behind firewalls that only let them browse the
219)     web, and this change will let them reach your Tor relay. Win32
220)     relays can simply change their ORPort and DirPort directly
221)     in their torrc and restart Tor. OS X or Unix relays can't bind
222)     directly to these ports (since they don't run as root), so they will
223)     need to set up some sort of <a

224)     href="<wikifaq>#ServerForFirewalledClients">

225)     port forwarding</a> so connections can reach their Tor relay. If you are
226)     using ports 80 and 443 already but still want to help out, other useful
227)     ports are 22, 110, and 143.
228)     </p>

229) 

230)     <p>
231)     12. If your Tor relay provides other services on the same IP address
232)     &mdash; such as a public webserver &mdash; make sure that connections to the
233)     webserver are allowed from the local host too. You need to allow these
234)     connections because Tor clients will detect that your Tor relay is the <a

235)     href="<wikifaq>#ExitEavesdroppers">safest

236)     way to reach that webserver</a>, and always build a circuit that ends
237)     at your relay. If you don't want to allow the connections, you must
238)     explicitly reject them in your exit policy.
239)     </p>

240) 

241)     <p>
242)     13. (Unix only). Make a separate user to run the relay. If you
243)     installed the OS X package or the deb or the rpm, this is already
244)     done. Otherwise, you can do it by hand. (The Tor relay doesn't need to
245)     be run as root, so it's good practice to not run it as root. Running
246)     as a 'tor' user avoids issues with identd and other services that
247)     detect user name. If you're the paranoid sort, feel free to <a

248)     href="<wiki>doc/TorInChroot">put Tor

249)     into a chroot jail</a>.)
250)     </p>

251) 

252)     <p>
253)     14. (Unix only.) Your operating system probably limits the number
254)     of open file descriptors per process to 1024 (or even less). If you
255)     plan to be running a fast exit node, this is probably not enough. On
256)     Linux, you should add a line like "toruser hard nofile 8192" to your
257)     /etc/security/limits.conf file (where toruser is the user that runs the
258)     Tor process), and then restart Tor if it's installed as a package (or log

259)     out and log back in if you run it yourself). The Debian/Ubuntu package
260)     does this step for you.

261)     </p>

262) 

263)     <p>
264)     15. If you installed Tor via some package or installer, it probably starts
265)     Tor for you automatically on boot. But if you installed from source,
266)     you may find the initscripts in contrib/tor.sh or contrib/torctl useful.
267)     </p>

268) 

269)     <p>
270)     When you change your Tor configuration, remember to verify that your
271)     relay still works correctly after the change. Be sure to set your
272)     "ContactInfo" line in the torrc so we can contact you if you need to
273)     upgrade or something goes wrong. If you have problems or questions, see
274)     the <a href="<page docs/documentation>#Support">Support</a> section or
275)     <a href="<page about/contact>">contact us</a> on the tor-ops list. Thanks
276)     for helping to make the Tor network grow!
277)     </p>

278) 

279)     <hr>

280) 

281)     <p>If you have suggestions for improving this document, please <a
282)     href="<page about/contact>">send them to us</a>. Thanks!</p>
283)   </div>
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285)   <div id = "sidecol">
286) #include "side.wmi"
287) #include "info.wmi"
288)   </div>
289)   <!-- END SIDECOL -->
290) </div>
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