user1878: Is it possible for a Bitcoin server to have a .onion ToR address?  
If so, are there any in existence today?
(Note: this is an alternative to hiding addresses via the Azure Service Bus)

user208: Yes, since version 0.7 this is possible with the reference client.
See the documentation about tor: https://github.com/bitcoin/bitcoin/blob/master/doc/tor.md
EDIT: also see https://en.bitcoin.it/wiki/Fallback_Nodes#Tor_nodes for a list of published onion nodes. The explanation on that site should be updated to reflected the built-in support for onion addresses since 0.7.0, though.

1878: <p>Is it possible for a Bitcoin server to have a <a href="https://security.stackexchange.com/q/11727/396">.onion ToR address</a>?  </p>

<p>If so, are there any in existence today?</p>

<p>(Note: this is an alternative to hiding addresses via the <a href="https://bitcoin.stackexchange.com/q/4810/1878">Azure Service Bus</a>)</p>
 208: <p>Yes, since version 0.7 this is possible with the reference client.</p>

<p>See the documentation about tor: <a href="https://github.com/bitcoin/bitcoin/blob/master/doc/tor.md" rel="nofollow">https://github.com/bitcoin/bitcoin/blob/master/doc/tor.md</a></p>

<p>EDIT: also see <a href="https://en.bitcoin.it/wiki/Fallback_Nodes#Tor_nodes" rel="nofollow">https://en.bitcoin.it/wiki/Fallback_Nodes#Tor_nodes</a> for a list of published onion nodes. The explanation on that site should be updated to reflected the built-in support for onion addresses since 0.7.0, though.</p>
