I want to restart wireguard network every day at 17:30. When I run this command in cmd, everything works correctly.
ifdown wg0 && sleep 10 && ifup wg0
If I set it in crontab it doesn't work
crontab -e
30 17 * * * ifdown wg0 && sleep 10 && ifup wg0
I always use full paths in crontab because I'm not sure what the env looks like, maybe that's the issue here?
/sbin/ifdown wg0 && /bin/sleep ...
Look in the log, too, should give you some hints.
logread -e cron
I'm sorry, it's my fault. When testing, I had set the wrong UTC time.
It also works with relative path.
logread -f | grep cron
Wed Jun 26 20:00:00 2024 cron.err crond[5797]: USER root pid 5823 cmd ifdown wg0 && sleep 5 && ifup wg0
For our education, what is the rationale behind a daily restart of the wg interface?
Sometimes I need to connect to the OpenWRT router remotely. Interface wg0 is wireguard VPN. However, many times I cannot connect. If I restart the wg0 interface, the connection is restored.
That's why I set the interface to restart once a day.
Then it looks like there is something wrong with your router/configuration.
It is possible. However, restarting the interface will definitely help. 