[tor-relays] TOR relays killing internet speed

John Csuti postmaster at coolcomputers.info
Sat Apr 10 23:04:32 UTC 2021


Hello,

We are trying to limit it now using the rate limiter inside torrc. And I don’t have a modem of any sorts. This runs on a data center connection. Also this is fiber optic on a 10Gb line to the internet backbone there isn’t a issue with too many connections. My edge router is only using about half the connections. Also my ISP has only used a fourth of the total connections. I am also working with the renter of the VM’s to figure it out.

Thanks,
John Csuti
‭(216) 633-XXXX

> On Apr 10, 2021, at 11:05 AM, William Kane <ttallink at googlemail.com> wrote:
> 
> Hi,
> 
>> if i have these relays running it kills a 10Gbps fiber optic line
> 
> this sounds like a configuration issue on your router, relays tend to
> establish tons of concurrent connections and some routers either can't
> handle it or think it's some sort of attack - especially if you run
> three relays all routed through the same router - the relays will
> likely end up sharing source and destination IP's, making it even more
> likely to trigger built-in filters.
> 
> Do you have any reason to rate-limit the entire virtual machine,
> instead of just the tor instance?
> 
> If not, I'd advise you to deploy rate limiting by using the tor
> configuration file, instead of Proxmox - last time I used PVE the
> rate-limiting was severely broken, and on some customers VM's, it even
> broke completely - no rate limiting being applied at all or network
> access being cut off randomly, despite having sane settings.
> 
> Tor has plenty of variables you can tune to rate-limit each instance,
> take a look:
> 
> https://2019.www.torproject.org/docs/tor-manual.html.en#BandwidthRate
> https://2019.www.torproject.org/docs/tor-manual.html.en#AccountingMax
> 
>> Each VM is limited to 1Mbps via proxmox.
> 
> Assuming this was just a typo, but if not, please fix it or get rid of
> PVE's built in rate-limiting entirely.
> 
> - William
> 
>> On 09/04/2021, John Csuti <postmaster at coolcomputers.info> wrote:
>> Hello everyone,
>> I am hosting 3 VM's limited at 10Mbps all together. Each VM is limited
>> to 1Mbps via proxmox. I have noticed if i have these relays running it
>> kills a 10Gbps fiber optic line. All the way down to 50Mbps or worse
>> depending on what the time of day. Any idea what i can try? I noticed
>> this happen over the past few months maybe its increased usage on the
>> relays not sure. According to TOR relay search the demand has spiked
>> recently. I wondering why/how it could bypass the limits on both proxmox
>> and pfsense.
>> Thanks,
>> John Csuti
>> (216) 633-XXXX
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