Q. How do I reboot my Linux system?
To reboot your Linux server, you can use commands “reboot” or “shutdown -r now”. For Debian based distros, you must use sudo (in case you’re not logged in as root).
Also, reboot process can be “snoozed” for X minutes with “shutdown -r +X” where X is number of minutes before the reboot happens.
Q. Can I solve problem with simple reboot?
Mostly NO !
In normal working conditions, Linux doesn’t require reboot and rebooting without detailed inspection probably won’t help. The right step to fix something is to check logs, inspect traffic to and from server, check firewall, ping this, traceroute, etc etc.
Rebooting without particularly reason is so Windows.