Aravindan B writes: > > When i use the bridges which i got from the internet, it works. whereas > > when i try to use my own IPs its not working. Please let me know how to > > proceed on this as i am stuck here for a long time. Thanks in advance.
If you want to create your own Tor network, you'll need to run your own directory server and tell all of the clients and routers to use and trust it. The directory servers collect information about all publicly-available Tor nodes so that clients can get a list and then choose which nodes the clients want to build circuits through. In the actual public Tor deployment, there are several directory services which reach a "consensus" about the list of nodes. One reason for this is to make it hard for someone to attack Tor by pressuring directory server operators to tamper with the list (or by breaking into the directory computers to change the list). An attacker who could do that could remove honest nodes from the list and fill it instead with nodes that the attacker controlled, and then clients would think those attacker-controlled nodes were the only ones available. If you have a copy of the normal Tor client, you can see the information about the directory servers in "cached-certs" and "cached-consensus" (with the actual listing of available Tor nodes in "cached-descriptors"). You'll see that the certs provide cryptographic keys which are used to check the integrity of the directory information (verifying that the several different directory servers have actually signed off on its correctness). I couldn't find the complete documentation about the directory servers (or their source code!). So this might be a good opportunity to make it clearer somewhere on the Tor site how to deal with this in modern Tor (maybe at least on the "research" page?). The specification for the directory servers is at https://gitweb.torproject.org/torspec.git/blob/HEAD:/dir-spec.txt -- Seth Schoen <sch...@eff.org> Senior Staff Technologist https://www.eff.org/ Electronic Frontier Foundation https://www.eff.org/join 815 Eddy Street, San Francisco, CA 94109 +1 415 436 9333 x107 -- tor-talk mailing list - tor-talk@lists.torproject.org To unsubscribe or change other settings go to https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-talk
