Safe to Clear cache?

[alexlii1971]

Hello

Please check at https://hiddify.com/manager/basic-concepts-and-troubleshooting/How-to-monitor-server-resources-on-Hiddify/#free-up-ram-memory

sync && systemctl -w vm.drop_caches=3

Mostly, I suppose it should be on Unbutu:

sudo sync && sudo sysctl -w vm.drop_caches=3

I mean it should be sysctl but not systemctl on Ubuntu, am I right?

Secondly, I understand Hiddify manager might cache DNS records, but, what about if I a script by cron every 30 minutes on a affordable VPS server?

sudo crontab -e
*/30 * * * * sync && sysctl -w vm.drop_caches=3

Any negative effect on Hiddify manager service? Or, do you recommend running that cron?

Thanks