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How to change hostname manually in Oracle Linux 7?

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LuisaWalker:
Manually append "HOSTNAME=dbametrix.com" into file /etc/sysconfig/network and restart system does not work on Oracle Linux 7. Could anybody guide me how to change hostname manually in Oracle Linux 7?

Mark Greaves (PCNetSpec):
what's the contents of

--- Code: ---
gedit /etc/hostname
--- End code ---
and

--- Code: ---
gedit /etc/hosts
--- End code ---


See here:
https://docs.oracle.com/en/operating-systems/oracle-linux/8/obe-hostname-cli/index.html
for how to use hostnamectl set-hostname to change the hostname.

or here:
https://linuxforums.org.uk/index.php?topic=3832.msg27792#msg27792
for how to edit /etc/hostname manually.

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