From the course: Red Hat Certified System Administrator (EX200) Cert Prep: 1 Deploy, Configure, and Manage (2021)
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Introduction to systemd services
From the course: Red Hat Certified System Administrator (EX200) Cert Prep: 1 Deploy, Configure, and Manage (2021)
Introduction to systemd services
- [Narrator] System services are processes that are started by the OS and sit in the background waiting to answer requests. These services might include web servers, file servers, mail servers, and others. In Linux, a system service is called a daemon spelled D A E M O N. The term daemon was first used by programmers at MIT. They took the name from Maxwell's daemon. A being from a thought experiment that constantly works in the background. Maxwell's daemon came from Greek mythology where a daemon was a genius or deity and was regarded as a good spirit or angel. In this sense, Linux daemons are good spirits working in the background, doing good deeds. The correct pronunciation of the Latin word daemon is daemon. However, it's common to pronounce Linux services, daemon or daemon, and both are acceptable. For this course, I'll use the original pronunciation of daemon. Due to Linux services being named daemons,…
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Contents
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Understand the Linux boot process2m
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Boot into the emergency target5m 54s
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Introduction to systemd services2m 32s
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Get systemd service status3m 56s
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Manage systemd services2m 33s
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Make systemd services persistent1m 40s
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Configure networking4m 41s
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Configure a system to use network time protocol4m 9s
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Manage one-time jobs with AT4m 4s
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Manage reccuring user jobs with cron5m 2s
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Manage reccuring system jobs with cron2m 41s
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Limiting access to AT and cron3m 41s
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(Locked)
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