From the course: Red Hat Certified System Administrator (EX200) Cert Prep: 1 Deploy, Configure, and Manage (2021)
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Configure networking
From the course: Red Hat Certified System Administrator (EX200) Cert Prep: 1 Deploy, Configure, and Manage (2021)
Configure networking
- [Instructor] To configure our Linux host computers network, we need to be able to set a few things, including the hostname, the name resolution, the IP address, the network mask, and a default gateway. We can manage our hostname two ways; first, by editing the /etc/hostname file or by using the hostnamectl command. Using the hostnamectl command is preferable as it manages the hostname everywhere, including saving it to the /etc/hostname file. We'll also want our hosting to resolve to an IP address. We can handle name resolution two ways; first, we can manage it statically by adding an entry to the/etc/host file. It's a very simple file with an IP address. Then white spaces followed by a hostname. And lastly, a n alias, if desired. We can also use DNS. We won't be going into managing DNS servers in this course. However, we can configure our host to use DNS service two ways; first, we can add entries to…
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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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