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CentOS System Administration Essentials

You're reading from   CentOS System Administration Essentials Become an efficient CentOS administrator by acquiring real-world knowledge of system setup and configuration

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Product type Paperback
Published in Nov 2014
Publisher Packt
ISBN-13 9781783985920
Length 174 pages
Edition 1st Edition
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Author (1):
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Andrew Mallett Andrew Mallett
Author Profile Icon Andrew Mallett
Andrew Mallett
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Toc

Table of Contents (13) Chapters Close

Preface 1. Taming vi 2. Cold Starts FREE CHAPTER 3. CentOS Filesystems – A Deeper Look 4. YUM – Software Never Looked So Good 5. Herding Cats – Taking Control of Processes 6. Users – Do We Really Want Them? 7. LDAP – A Better Type of User 8. Nginx – Deploying a Performance-centric Web Server 9. Puppet – Now You Are the Puppet Master 10. Security Central 11. Graduation Day Index

What's new in CentOS 7


CentOS 7 was released in June 2014, along with the earlier release of Red Hat Enterprise Linux 7. Along with the introduction of the Linux kernel 3.10 in this release, there are other significant updates to the distribution.

Locale

The system locale information can be conveniently set and displayed using the localectl command:

$ localectl status

The output can be seen in the following screenshot:

Time and date information

Similar to the locale information, CentOS 7 includes a simple command to display and manage time and date settings on the host system: /usr/bin/timedatectl. This really is a godsend to us as administrators; even if we only use the command to display the output, this one command will display the time, timezone, and NTP settings. Take a look at the output of the timedatectl command without options in the following screenshot:

Staying with the timedatectl command, we can change the date using the following command:

# timedatectl set-time 2014-07-19

The time...

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