<p>If you have less than 1Mbit in both directions, you should stay
a client. Otherwise, please consider being a server, to help out the
-network. (Currently each server uses 20-30 gigabytes of traffic
+network. (Currently each server uses 20-150 gigabytes of traffic
per month; but that may go up.)</p>
<p>Note that you can be a server without allowing users to make
support any suite without ephemeral keys, symmetric keys of at
least 128 bits, and digests of at least 160 bits.
+[what kind of cert does an OP send? -RD]
An OR always sends a two-certificate chain, consisting of a self-signed
certificate containing the OR's identity key, and a second certificate
using a short-term connection key. The commonName of the second
OR-to-OR connections are never deliberately closed. When an OR
starts or receives a new directory, it tries to open new
connections to any OR it is not already connected to.
+[not true, unused OR conns close after 5 mins too -RD]
OR-to-OP connections are not permanent. An OP should close a
connection to an OR if there are no circuits running over the