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I'm running a couple of standard Fedora instances on EC2. I feel the public hostnames of the instances assigned by Amazon are too weird and hard to remember. I'd like to change them to something short (like red/blue/green/etc).

Is there any drawback in doing this? And how do I set it up such that it persists after reboots?

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Edit /etc/sysconfig/network as root.

Replace

HOSTNAME=localhost.localdomain

with

HOSTNAME=hostname.DOMAIN_NAME

Then, either reboot or run /etc/init.d/network restart The server then should report its name as an FQDN.

If you want to learn more, check out this AWS Certification Training Course by Intellipaat.

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