Is there a server management scheme with intentional partial uptime? I mean, a server that automatically sleeps at night? Or a server that wakes on every other hour (using hardware, not cron jobs) to do some cyclic task? Or two servers working in a collaborative manner -- one sleeps while the other works. If no, has implementing such a scheme any benefits? Such as, longer life expectancy or low power consumption?
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Nandakumar Edamana's questions
I recently bought a VPS and learned a lot from it. I manged to create an ftp user, set it as the owner of my site's document root, add it to the www-user group, set the group as the group of the document root and give files 0775 (0664) permissions.
My question is, if www-data can access and modify the files in the document root, won't the scripts from other sites also be able to modify those files (which are now protected from the public using .htaccess)?
NOTE: I want www-data to have write access since PHP scripts should be able to modify the files.
How to solve this issue?