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Re: [tor-talk] running a stable exit node on a Raspberry Pi B+ (can it handle it?)



I wouldn't recommend using a rPi for a Tor bridge/relay. It's far too underpowered in my mind to be useful for anyone. If anything, it might harm the network by introducing slow hops. A spare computer or a VPS would be better here. 

As far as your bandwidth settings those seem fine, you should be able to see connections taking place in arm if the relay is functioning. 

On December 24, 2014 12:35:13 PM EST, Chris Dagdigian <dag@sonsorol.org> wrote:
>
>I'm running a brand new US exit node on a dedicated B+ model Raspberry 
>Pi server (relay nickname:
>sonsorolDotNet ) configured per all the guides and running the reduced 
>exit policy.
>
>Trying to avoid being one of the new folks who obsess about flag status
>
>but  the relay lost the Stable flag sometime yesterday despite being up
>
>and running nonstop. I want to make sure it's not because I've tuned 
>badly or because the B+ server is underpowered for what it needs to do.
>
>Tried to set torrc conservatively at first for bandwidth:
>> RelayBandwidthRate 800 KB
>> RelayBandwidthBurst 1600 KB
>
>The 'arm' utility says average up/down traffic is 1Mb/sec
>
>Log data:
>> Dec 24 14:35:33.000 [notice] Heartbeat: Tor's uptime is 9 days 17:55 
>> hours, with 332 circuits open. I've sent 58.85 GB and received 60.64
>GB.
>> Dec 24 14:35:33.000 [notice] Average packaged cell fullness: 97.712%
>> Dec 24 14:35:33.000 [notice] TLS write overhead: 2%
>> Dec 24 14:35:33.000 [notice] Circuit handshake stats since last time:
>
>> 17845/2749463 TAP, 7845/8431 NTor.
>
>The only interesting system log entry recently:
>> [839721.095364] TCP: TCP: Possible SYN flooding on port 9030. Sending
>
>> cookies.  Check SNMP counters.
>
>Looking for pointers/tips/data on:
>
>1. Can the raspberry pi B+ handle exit relay duties or is it
>potentially 
>underpowered?
>
>2. Best logging/debug tips to dive into stability or connection issues 
>with the tor service?
>
>3. raspberrian or torcc tuning tips from people with similar setups
>
>
>Thanks!
>
>
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