Hi Since a few months back I have two RPi running Tor relays and delivering about 1Mbit each of peak throughput. Now my ISP has increased my max upload speed and I am looking to contribute more, somewhere in the 20Mbit range or possibly more.
But what hardware do I need? Has anyone written down a list of minimum requirements to get a certain throughout?
I have tried to google, but failed.
Sincerely Daniel Armyr.
Hey, Tor process is only mono-cpu, so if you have RPi v2 or v3, the full quad core will not be used 100% by 1 Tor process. On this list I've already read it's possible to launch several Tor processes, so all cpu x4 cores can be used at same time.
About hardware, I don't know if the RPi can go to 20Mbit with 1 process (or 4). Let's try ;)
Hi Since a few months back I have two RPi running Tor relays and delivering about 1Mbit each of peak throughput. Now my ISP has increased my max upload speed and I am looking to contribute more, somewhere in the 20Mbit range or possibly more.
But what hardware do I need? Has anyone written down a list of minimum requirements to get a certain throughout?
I have tried to google, but failed.
Sincerely Daniel Armyr.
On 08/28/2016 04:18 PM, Petrusko wrote:
Hey, Tor process is only mono-cpu, so if you have RPi v2 or v3, the full quad core will not be used 100% by 1 Tor process.
Tor is mostly 1 process, but it does now do crypto on a separate thread.
On this list I've already read it's possible to launch several Tor processes, so all cpu x4 cores can be used at same time.
Up to two per IP. Note you need to specify separate data directories for each Tor process.
Be kind and specify them all as family members if you run multiple Tor relays :)
Matt
On 08/28/2016 04:26 PM, Petrusko wrote:
Up to two per IP.
Hu? it's sad for people having several CPU... :s
It does help a little to prevent attackers from spinning up a lot of relays. With this limit, they must have n/2 IPs at their disposal.
For example, this paper[1] shows an attack for harvesting onion services. It would have been much easier without the 2-per-IP limit.
Matt
tor-relays@lists.torproject.org
-
Daniel Armyr -
Matt Traudt -
Petrusko