04-26-2001
19,118,
3,359
Join Date: Sep 2000
Last Activity: 15 July 2022, 8:51 AM EDT
Location: Asia Pacific, Cyberspace, in the Dark Dystopia
Posts: 19,118
Thanks Given: 2,351
Thanked 3,359 Times in 1,878 Posts
Most servers are configured so the services are initiated and started when the system boots. This happens in the boot scripts. These boot scripts excute in a logical sequence insuring that the operating environment is setup properly. For example, check local filesystems and the mount them; start networking services; mount networked filesystems; start database services; start network services.
For example, many people on the net use apache with PHP and MySQL. Because they they run applications with Apache/PHP that use MySQL as the database backend (like this site) you would start MySQL before Apache. All of this occurs in the boot resource directory (/etc/rc.d/ on my systems, every major flavor of UNIX has a different way to do this) but the idea is the same.
Sorry, I would like to add more, but have to run to a meeting.