UNIX and Linux System Administration, Schemes and Mind Maps of Linux skills

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2.9 REBOOT AND SHUTDOWN PROCEDURES Historically, UNIX and Linux machines were touchy about how they were shut down. Modern systems have become less sensitive, especially when a robust filesystem is used, but it’s always a good idea to shut down a machine nicely when possible. Consumer operating systems of yesteryear trained many sysadmins to reboot the system as the first step in debugging any problem. It was an adaptive habit back then, but these days it more commonly wastes time and interrupts service. Focus on identifying the root cause of problems, and you’ll probably find yourself rebooting less often. That said, it’s a good idea to reboot after modifying a startup script or making significant configuration changes. This check ensures that the system can boot successfully. If you’ve introduced a problem but don’t discover it until several weeks later, you’re unlikely to remember the details of your most recent changes.