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102 lines
3.7 KiB
Plaintext
102 lines
3.7 KiB
Plaintext
How to run an experimental v3 directory authority.
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13 Aug 2007
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NOTE:
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This code is experimental, and for directory authorities only.
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Please do not try to make it work right now without Nick's help.
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What we'll be doing:
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We'll be setting up a couple of authorities to vote with each other.
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(Later, we'll revise this document to explain how to add or remove
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or operate a v3 voting authority.)
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The steps:
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0) Make sure you're running ntp, and that your time is correct.
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Make sure you have Tor version at least r11083.
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Make sure you can do this with 2 or more authorities.
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1) First, you'll need a certificate. Run tor-gencert to generate one.
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tor-gencert is in ./src/tools/.
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Run tor-gencert in a separate, very secure directory. The first time
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you run it, you will need to run it with the --create-identity-key
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option to make a v3 authority identity key. Subsequent times, you
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can just run it as-is.
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tor-gencert will make 3 files:
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authority_identity_key -- THIS IS VERY SECRET AND VERY SENSITIVE.
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DO NOT LEAK IT. DO NOT LOSE IT.
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authority_signing_key -- A key for signing votes and v3 conensuses.
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authority_certificate -- A document authenticating your signing key
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with your identity-key.
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You will need to rotate your signing key periodically. The current
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default lifetime is 1 year. I'll probably take this down to a month or
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two some time soon. To rotate your key, run tor-gencert as before,
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but without the --create-identity-key option.
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2) Copy authority_signing_key and authority_certificate to your Tor keys
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directory.
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For example if your data directory is /var/lib/tor/, you should run
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cp authority_signing_key authority_certificate /var/lib/tor
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You will need to repeat this every time you rotate your certificate.
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3) Tell Tor to be a v3 authority by adding this to your torrc:
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V3AuthoritativeDirectory 1
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Tell Tor to try voting every half hour by adding this to your torrc:
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V3AuthVotingInterval 30 minutes
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4) Now you'll need to add DirServer lines to your Tor. Right now, the
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defaults are:
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DirServer moria1 v1 orport=9001 128.31.0.34:9031 FFCB 46DB 1339 DA84 674C 70D7 CB58 6434 C437 0441
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DirServer moria2 v1 orport=9002 128.31.0.34:9032 719B E45D E224 B607 C537 07D0 E214 3E2D 423E 74CF
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DirServer tor26 v1 orport=443 86.59.21.38:80 847B 1F85 0344 D787 6491 A548 92F9 0493 4E4E B85D
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DirServer lefkada orport=443 140.247.60.64:80 38D4 F5FC F7B1 0232 28B8 95EA 56ED E7D5 CCDC AF32
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DirServer dizum 194.109.206.212:80 7EA6 EAD6 FD83 083C 538F 4403 8BBF A077 587D D755
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You will need to tell every Tor that is running a v3 authority about the
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other v3 authorities. To do this:
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-- Add the default DirServer lines to your torrc... INCLUDING
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THE AUTHORITIES THAT YOU ARE NOT TESTING WITH V3.
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-- Find out every authority's v3 identity fingerprint. It should
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be in your authority_certificate file in a line like:
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fingerprint 3041632465FA8847A98B2C5742108C72325532D9
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-- To the DirServer line of every authority with a v3 identity, add
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a v3ident=<fingerprint> item. For example, if moria1's new v3
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identity fingerprint is FOO, the moria1 dirserver line should now
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be:
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DirServer moria1 v1 orport=9001 v3ident=FOO 128.31.0.34:9031 FFCB 46DB 1339 DA84 674C 70D7 CB58 6434 C437 0441
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The v3ident item must appear after the nickname and before the IP.
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5) Restart Tor and let me know what happens. You might want to enable
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coredumps.
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6) If it breaks very badly, or you're not going to be around to restart it,
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disable v3 voting by setting V3AuthoritativeDirectory to 0.
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-- Nick
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