Re: [tor-relays] Tor automatic restart
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/ ___ tor-relays mailing list tor-relays@lists.torproject.org https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays
Re: [tor-relays] Restarting Tor
Greetings! Thanks for running your relays! On Sunday, October 10, 2021 at 4:49:16 AM UTC-4 sysmanager7 via tor-relays wrote: > Greetings All, I have three relays that are in need of an upgrade and > reboot. > What is the best way to restart these relays without loosing flags or time? > We routinely reboot our nodes for kernel updates and retain the stable flag. High uptime is not something to brag about for a tor node, so don't worry about that. If you're running a debian-based linux distro, you can have unattended-upgrades[0] do the work for you and warn you via email. There are tools that will allow for similar workflows for other OSes, eg. with dnf on rpm-based distros[1]. > Secondly how long can a relay be down before flags are dropped? > I don't know the upper bound, but twice I've migrated keys from an old piece of hardware to a new piece of hardware when the support warranty expired, and that node still has the stable flag. I took my time and did the migration carefully. It's far more important that you follow the advice[2] on how to keep your relay in good shape once it's up and running than that you find the limits of certain flags. Cheers! -- ibiblio Tor Manager [0] https://wiki.debian.org/UnattendedUpgrades [1] https://dnf.readthedocs.io/en/latest/automatic.html [2] https://community.torproject.org/relay/setup/post-install/ ___ tor-relays mailing list tor-relays@lists.torproject.org https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays
