[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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