[tor-relays] Setting up tor relay

[Yash Kumar]

Dear all,
 I want to setup my machine as a tor relay. I am using Ubuntu 16.04 LTS on
a Intel i5 processor with 4 GB of memory.
I followed the instructions given on this link
, but was
getting some issue. In one of the later steps, it says "Verify that your
relay works". This is done by checking my logfile(syslog) contains the
following text:

"Self-testing indicates your ORPort is reachable from the outside.
Excellent. Publishing server descriptor."

I checked the syslog by the command:

$ cat /var/log/syslog


To bring it to your knowledge, I have followed all the previous steps
mentioned on that link
, and was
successfully able to execute all the commands. I would request you to
please help me out in setting up my machine as  a relay to make tor network
faster and more usable.

Thank you,
Yash Kumar
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Re: [tor-relays] tor enters uninterruptible sleep forever when using transparent proxy

[Zack Weinberg]

On Tue, May 22, 2018 at 8:11 PM, Nicolás Dato  wrote:
>> tor enters uninterruptible sleep forever when using transparent proxy
>
> For future references, the issue was the kernel version 4.4.118,
> upgraded and the problem was gone.

A bit of Unix sysadmin lore that isn't as widely advertised as it once
was (because, thankfully, it comes up far less often than it used to):
there are only three reasons why a process would remain in an
uninterruptible sleep for more than a few milliseconds: an abnormally
slow storage peripheral (e.g. a tape drive being rewound, or a hard
drive that's about to fail), a network file server that isn't
responding to messages, or a kernel bug.

zw
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Re: [tor-relays] tor enters uninterruptible sleep forever when using transparent proxy

[Nicolás Dato]

> tor enters uninterruptible sleep forever when using transparent proxy

SOLVED

For future references, the issue was the kernel version 4.4.118,
upgraded and the problem was gone.
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Re: [tor-relays] New DNS related fields in the ContactInfo Sharing Specification

[Paul Templeton]

> https://github.com/nusenu/ContactInfo-Information-Sharing-Specification

Is there an assumption that a 100% of the system is dedicated to Tor or will 
there be a key available to specify?
I.e. 25%BW and/or 50%CPU.

I'm just saying as I have three bare metal systems two that have 1gbit Ethernet 
no data cap but they only use 15%...


Paul
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Re: [tor-relays] VPNGate Project Exit Node Volunteers / I2P

[grarpamp]

On Tue, May 22, 2018 at 10:13 AM, Paul  wrote:
>> For those relay operators who may have extra
>> non tor listed IP addresses and want to help
>> a related projects / userbase.
>> https://geti2p.net/
>> I2P also has an exit proxy function.
>
> Why is it important to have a "non tor Listed IP" ?
> Cant one just run I2P and a tor relay on the same IP?

Yes you can run and contribute to many of the other anonymous
overlay, distributed filesystem, messaging, privacy coin, etc
networks all using the same IP. It's fun.

For those networks that provide an 'exit' outproxy function, whether
auto or manually configured, yes any additional exit nodes you
add to them could be helpful to the respective networks.

Using same IP, the added node would have no better than tor's average
access to read things on the internet because tor's exits are scraped
out of the consensus, and reported, and added to many DNSBL,
abuse / spam DB, Google / CloudFlare captcha, GeoLocation,
blacklist, etc systems on the planet.

The other overlays, while quite capable, are much less known than
tor, thus less likely to have their exits and nodes in as many blacklists.

In some sense, adding a blacklisted tor exit IP to those networks
could be considered a reduction of their average access rates.
Consult each on tradeoff between cleaner access and node count,
they might not prefer to have too many dirty tor IPs.
And to characterize such rates of each overlay network you'd
have to run a study to measure them.

If you can't browse, signup, use a website using a dirty tor exit IP,
then likely for at least so long as that IP remains a tor exit IP, trying to
do so from that same IP as part of another overlay network will also fail.

The access issues are partly why some tor exit operators use
OutboundBindAddress, NAT, and even offer out of band OpenVPN
termination... to separate ORPort IP in consensus from actual exit IP,
a way to try raising the access:blacklist ratio.

Run whatever nodes you like :)
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Re: [tor-relays] tor enters uninterruptible sleep forever when using transparent proxy

[Nicolás Dato]

Sorry to reply to myself,
I forgot to clarify that the transparent proxy worked fine until yesterday
And that the tor version is 0.3.2.10 (git-31cc63deb69db819)
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[tor-relays] tor enters uninterruptible sleep forever when using transparent proxy

[Nicolás Dato]

Hello there,
First thanks for reading!

I've been running a tor relay for almost two weeks from my home.
Yesterday,* I did some upgrades to my Slackware 14.2 including glibc and
kernel*. I run tor there and it worked fine. After upgrading Slackware I
had to reboot and run windows for the night. Windows messes with the
machine time.
Today, *I rebooted and run Slackware and (as usual after running windows) *the
clock was -3 hours apart. I do run NTP but looks like it doesn't make the
adjustment if the difference is way too big. I adjusted the time and run
the NTP service again.
*Tor daemon launches at startup* so it was running when my clock was -3
hours from present time.

I use irssi (IRC client) connecting to the tor transparent proxy using
iptables.
As usual, I runned irssi and tried to connect to a server but the
connection hangs forever and tor hangs forever too, hanging the relay too.
I tried a different server but hangs too.

*Before trying to connect with irssi, this works:*
The tor relay works fine and accepts connections and delivers traffic.
I can run nyx and it connects fine and shows me the stats.
I can connect to the socks proxy and it works and doesn't hangs tor daemon.

After trying to connect with irsse,
*all of that stop working.*
I didn't changed any tor configuration neither the iptables configuration
I did build the tor packages (recompiling it) and installed it, but didn't
work
I removed some files and folders from /var/log/tor, only removed the ones
modified yesterday and today, but it didn't work neither.

tor is reported by ps to be on uninterruptible sleep
 1347 ?Dl 0:06 11 0 491216 87432  2.2 /usr/bin/tor
and there is no way to kill it other than rebooting, neither kill -9 as
root works

after all the reboots, after removing some /var/lib/tor files, and having
the machine clock on time, tor still hangs when using the transparent proxy

this are the last lines from the debug log:
https://paste.debian.net/plain/1025878
(that's from the time I tried to connect to freenode and it hanged, no more
logs after that)

this is my iptables:
http://paste.debian.net/plainh/c949bc2a
(irssi runs as ircuser)

this is my torrc:
http://paste.debian.net/plain/1025881
(I didn't copy some lines)

Thanks again for reading.
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Re: [tor-relays] VPNGate Project Exit Node Volunteers / I2P

[Paul]

grarpamp:

> For those relay operators who may have extra
> non tor listed IP addresses and want to help
> a related projects / userbase.
> 
> https://geti2p.net/
> 
> I2P also has an exit proxy function.
> 

Why is it important to have a "non tor Listed IP" ?

Cant one just run I2P and a tor relay on the same IP?

Paul
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