Permissions of entries in the /proc filesystem
I am currently testing an Ubuntu VPS. I noticed that normal (non-root) users of my system cannot use some commands like w, uptime, etc. They compain about the /proc filesystem not being mounted, while it is. After doing some investigations, I noticed that some "files" under /proc have wrong permissions (they are non-readable by a non-root user). Comparing them with a standard system, I corrected some of the permissions, so that these commands run with no error. Is there a problem with the Ubuntu 18.04 pure OS image? Also some other commands and daemons (like downtimed, ntpd) give errors. But, I guess this is due to restrictions of the underlying virtualization system you are using. Is there a remedy for this?