Re: [tor-relays] Tor automatic restart

[s7r]

Hi,

I don't see the problem in being How to automatically restart Tor. The 
base problem is, why do you need to restart it regularly or at every x 
period?


I mean, I only restart my Tor when I apply updates to Tor or to the 
operating system, etc. -- otherwise it works fine. If something hangs 
your Tor process and you need to restart it, you have to determine the 
cause of that.


What OS and which version, hardware and setup (bare metal, virtual 
machine) do you use?

What are the system resources (CPU,RAM,HDD/SSD,Bandwidth)?
How did you install Tor? Package manager or other method?
What is your soft and hard max open files limit?


Keifer Bly wrote:
No. I have no other processes running on the vps. The OS Debian Linux is 
running the newest version, it seems something is causing the tor 
process to get hung up once a month. Will take a look at that, thanks.

--Keifer


On Sun, Oct 10, 2021 at 10:04 AM Tor Manager > wrote:


On Sunday, October 10, 2021 at 4:48:47 AM UTC-4 Keifer Bly wrote:

I am wondering, is there a way configure tor (via the torrc
file) to restart automatically once a month? Thank you.


Before you implement a time-based service restart, you may wish to
check that your OS and hardware (eg. firmware) are as up to date as
you can reasonably make them. It strikes me as odd that you would
have that instability that would require such a service restart. Do
you have other services running? Are you running any sort of system
monitoring that would tell you about issues with RAM or persistent
storage?

With that said, I have used monit[0] in the past to bring services
back up when a test fails, though never tor. Note that my go-to if I
were going to implement monit would be to have a service check, and
not restart on a time basis, but rather on a threshold or
reachability basis. Eg. if you were going to use monit with a
webapp, Id suggest you have a page in the style of
https://example.org/webapp/monit-check/
 that must load the app
runtime, and then have monit restart everything involved in the app
if that page load takes more than 15 seconds. In your case that
might look like installing nyx[1] and having a wrapper script that
checks with nyx and has a non-zero exit you can have monit act on.

Cheers,
--
ibiblio Tor Manager

[0] https://mmonit.com/monit/documentation/monit.html

[1] https://nyx.torproject.org/ 






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Re: [tor-relays] Tor automatic restart

[lists]

On Monday, October 11, 2021 4:36:16 AM CEST Keifer Bly wrote:
> No. I have no other processes running on the vps. The OS Debian Linux is
> running the newest version, it seems something is causing the tor process
> to get hung up once a month. Will take a look at that, thanks.

On debian 9, 10 and 11, the tor deamon is started and managed by systemd by 
default. With the option 'Restart=on-failure'
Is the tor service really down?
~$ sudo systemctl status tor

If the tor service is terminated by something, you can find out why this is 
happening in the logs. Reading the log files carefully is always the first 
thing 
to do in the event of errors on UNIX systems.
~$ cat /var/log/tor/notices.log

-- 
╰_╯ Ciao Marco!

Debian GNU/Linux

It's free software and it gives you freedom!

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Re: [tor-relays] Tor automatic restart

[theintern via tor-relays]

As far as I know the only way to do what you want is via Cron.

On 2021-10-09 15:40, Keifer Bly wrote:

Hi,

So my relay at
https://metrics.torproject.org/rs.html#details/79E3B585803DE805CCBC00C1EF36B1E74372861D

Seems to periodically go down once a month or so. I am wondering, is
there a way configure tor (via the torrc file) to restart
automatically once a month? Thank you.

--Keifer
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Re: [tor-relays] Tor automatic restart

[Tor Manager]

On Sunday, October 10, 2021 at 4:48:47 AM UTC-4 Keifer Bly wrote:

> I am wondering, is there a way configure tor (via the torrc file) to 
> restart automatically once a month? Thank you.
>

Before you implement a time-based service restart, you may wish to check 
that your OS and hardware (eg. firmware) are as up to date as you can 
reasonably make them. It strikes me as odd that you would have that 
instability that would require such a service restart. Do you have other 
services running? Are you running any sort of system monitoring that would 
tell you about issues with RAM or persistent storage?

With that said, I have used monit[0] in the past to bring services back up 
when a test fails, though never tor. Note that my go-to if I were going to 
implement monit would be to have a service check, and not restart on a time 
basis, but rather on a threshold or reachability basis. Eg. if you were 
going to use monit with a webapp, Id suggest you have a page in the style 
of https://example.org/webapp/monit-check/ that must load the app runtime, 
and then have monit restart everything involved in the app if that page 
load takes more than 15 seconds. In your case that might look like 
installing nyx[1] and having a wrapper script that checks with nyx and has 
a non-zero exit you can have monit act on.

Cheers,
--
ibiblio Tor Manager

[0] https://mmonit.com/monit/documentation/monit.html
[1] https://nyx.torproject.org/

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Re: [tor-relays] Tor automatic restart

[Gary C. New via tor-relays]

Keifer,
When you say, "periodically go down once a month" do you mean the Tor service 
dies, becomes defunct, circuits bleed off, Internet connectivity issues, power 
goes out, etc? Anything in the torlog that might provide a clue? From your 
metrics, you can definitely tell your relay goes down once or twice a month 
I don't know of a way to monitor and restart the Tor service via the torrc 
file. However, if you knew the root cause, it would help to monitor, report, 
and/or restore the Tor service, externally.
I have battery backups, power generator, and loadbalance to multiple relay 
nodes within my portion of the Tor network. I would like to add redundant ISP's 
and routers to my topology, as well.
Respectfully,

Gary—This Message Originated by the Sun.iBigBlue 63W Solar Array (~12 Hour 
Charge)+ 2 x Charmast 26800mAh Power Banks= iPhone XS Max 512GB (~2 Weeks 
Charged) 

On Sunday, October 10, 2021, 1:48:52 AM PDT, Keifer Bly 
 wrote:  
 
 
Hi,

  

So my relay at 
https://metrics.torproject.org/rs.html#details/79E3B585803DE805CCBC00C1EF36B1E74372861D

  

Seems to periodically go down once a month or so. I am wondering, is there a 
way configure tor (via the torrc file) to restart automatically once a month? 
Thank you.

  

--Keifer

  
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Re: [tor-relays] Tor automatic restart

[lists]

On Sunday, October 10, 2021 12:40:22 AM CEST Keifer Bly wrote:

> So my relay at 
> https://metrics.torproject.org/rs.html#details/79E3B585803DE805CCBC00C1EF
> 36B1E74372861D
> 
> 
> Seems to periodically go down once a month or so. I am wondering, is there a
> way configure tor (via the torrc file) to restart automatically once a
> month? Thank you.

You can do this with a simple cron job. But it makes more sense to research 
why the Tor daemon aborts. You may have activated bandwidth accounting. Or 
limit at the provider is used up if you don't have unlimited services.

By the way, You have an unsupported EOL Tor version:
https://lists.torproject.org/pipermail/tor-relays/2021-October/019862.html

And your torrc is misconfigured. Why did you set exit policies that are also 
wrong? You must at least accept ports 80, 443 and 53 to be an exit. And 
generally first enter an exit address. Preferably IP and IPv6. ;-)
https://docs.ovh.com/us/en/vps/configuring-ipv6/

The ports TCP 6660-6667 (IRC) may allow DDOS attacks against you.
I'm not sure if that could be exploited in your constellation.

-- 
╰_╯ Ciao Marco!

Debian GNU/Linux

It's free software and it gives you freedom!

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Re: [tor-relays] Tor automatic restart

[Keifer Bly]

No. I have no other processes running on the vps. The OS Debian Linux is
running the newest version, it seems something is causing the tor process
to get hung up once a month. Will take a look at that, thanks.
--Keifer


On Sun, Oct 10, 2021 at 10:04 AM Tor Manager  wrote:

> On Sunday, October 10, 2021 at 4:48:47 AM UTC-4 Keifer Bly wrote:
>
>> I am wondering, is there a way configure tor (via the torrc file) to
>> restart automatically once a month? Thank you.
>>
>
> Before you implement a time-based service restart, you may wish to check
> that your OS and hardware (eg. firmware) are as up to date as you can
> reasonably make them. It strikes me as odd that you would have that
> instability that would require such a service restart. Do you have other
> services running? Are you running any sort of system monitoring that would
> tell you about issues with RAM or persistent storage?
>
> With that said, I have used monit[0] in the past to bring services back up
> when a test fails, though never tor. Note that my go-to if I were going to
> implement monit would be to have a service check, and not restart on a time
> basis, but rather on a threshold or reachability basis. Eg. if you were
> going to use monit with a webapp, Id suggest you have a page in the style
> of https://example.org/webapp/monit-check/ that must load the app
> runtime, and then have monit restart everything involved in the app if that
> page load takes more than 15 seconds. In your case that might look like
> installing nyx[1] and having a wrapper script that checks with nyx and has
> a non-zero exit you can have monit act on.
>
> Cheers,
> --
> ibiblio Tor Manager
>
> [0] https://mmonit.com/monit/documentation/monit.html
> [1] https://nyx.torproject.org/
>
>
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Re: [tor-relays] Tor automatic restart

[John Csuti via tor-relays]

Hello,

First i would recommend updating your tor version then worrying about 
your issue. Your current tor version is not recommended by the directory 
authority's.


Thanks,
John Csuti
+1 (216) 633-1279

On 2021-10-09 06:40 PM, Keifer Bly wrote:


Hi,

So my relay at 
https://metrics.torproject.org/rs.html#details/79E3B585803DE805CCBC00C1EF36B1E74372861D


Seems to periodically go down once a month or so. I am wondering, is 
there a way configure tor (via the torrc file) to restart automatically 
once a month? Thank you.


--Keifer

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