[Spittie]

Your distro should ship with a sample config file, otherwise you can find one here: https://gitweb.torproject.org/tor.git/blob/HEAD:/src/config/...

Tor has some sane defaults, so you don't need to edit much. I've started running a relay (no exit) node for the challenge, and this is what I'm using:

    ORPort 9001
    Nickname RelayName
    RelayBandwidthRate 6000 KB
    RelayBandwidthBurst 10000 KB
    AccountingMax 500 GB
    AccountingStart month 1 00:00
    ExitPolicy reject *:*

RelayBandWidthRate and Burst control how much bandwidth the tor daemon is allowed to use (average and burst obviously), AccountingMax is how much bandwidth the daemon is allowed to use over a given period, and AccountingStart definite that period (in my config a period is a month, and it start at midnight of the first day).

Also, once you start it, give it an hour or so to appear in the tor swarm. As long as you have "Self-testing indicates your ORPort is reachable from the outside. Excellent. Publishing server descriptor." in your logs, you should be fine and only have to wait.

[bruo]

First, as a latin american activist, thank you for supporting Tor!!

Please consider the following... It's better for the Tor network to don't have a limit on the bandwidth and let the relay just hibernate when it reachs the 500 GB. If you are able to do this, please give it a try.

Again, thank you!

[Spittie]

Sorry, I can't :( This isn't a box dedicated to tor, and also my vps provider requires to limit the bandwidth in their ToS.