[tor-relays] 0.2.4.17-rc on Pi, a couple weeks on

Gordon Morehouse gordon at morehouse.me
Wed Sep 18 15:04:41 UTC 2013


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Addendum to addendum: the router fail is definitely caused by Tor
connections filling up the router's ip_conntrack table - once it gets
near full, it somehow interferes with a couple other services on my
router (especially DNSmasq) even if there is free RAM.  I will need to
figure out some iptables tricks for the Pi, which I've long known, to
prevent this, just no time yet.

Note that somehow, due to a brief enough hiccup I guess, my Pi relay
retained Named, Stable and Fast this morning, so as soon as I
restarted it it was instantly slammed with thousands of connections.

I may need to do the kludge of rate-limiting incoming connections to
the Tor ports for now, using iptables.

Also of note: regarding the ntp and time/clock issue: it appears that
because I was using a particular stripped image of Raspbian, some
spurious .conf and init.d files were left for the Raspbian 'ntp'
package, which I purged, and ensured that only 'ntpdate' (for setting
the clock at startup, run in /etc/rc.local) and 'openntpd' are installed.

Best,
- -Gordon M.


Gordon Morehouse:
> Addendum: restarting tor instantly puts my router into a tailspin 
> this morning.  This is a WRT54G (old school, 3.0 hardware, 200MHz 
> MIPS). While that's old, there are many, many consumer routers out 
> there with similar specs and worse firmware.  In this case it 
> causes major problems with DNS.
> 
> I'd like to figure out what is going on with this in order to 
> prevent it from happening as part of the Cipollini project[1] so 
> (when the time comes) we're not distributing images for Raspberry 
> Pi which crash people's routers.  :(
> 
> Request timeout for icmp_seq 847981 64 bytes from 192.168.1.1: 
> icmp_seq=61550 ttl=64 time=1.136 ms Request timeout for icmp_seq 
> 847983 Request timeout for icmp_seq 847984 Request timeout for 
> icmp_seq 847985 64 bytes from 192.168.1.1: icmp_seq=61554 ttl=64 
> time=0.917 ms Request timeout for icmp_seq 847987 64 bytes from 
> 192.168.1.1: icmp_seq=61556 ttl=64 time=0.929 ms Request timeout 
> for icmp_seq 847989 Request timeout for icmp_seq 847990 64 bytes 
> from 192.168.1.1: icmp_seq=61559 ttl=64 time=0.929 ms 64 bytes
> from 192.168.1.1: icmp_seq=61560 ttl=64 time=0.922 ms Request
> timeout for icmp_seq 847993 Request timeout for icmp_seq 847994
> 
> Best, -Gordon M.
> 
> 
> 
> Gordon Morehouse:
> 
> 
> _______________________________________________ tor-relays mailing 
> list tor-relays at lists.torproject.org 
> https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays
> 

- -- 
Sent from my thing that sends email.
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