How can I change the EC2 hostname?

To change the hostname on an Amazon EC2 Linux instance and ensure it
persists across reboots, you need to configure cloud-init to stop overwriting it, apply the new name via hostnamectl, and update your local hosts file.
Related Replies
CHINMAYA M
CHINMAYA M 7 hours ago
No, an EC2 instance in VPC-A cannot access the internet through VPC-B's IGW via VPC Peering. VPC-A needs its own Internet Gateway or another..
CHINMAYA M
CHINMAYA M 7 hours ago
Step 1: Host bits32 − 28 = 4Step 2: Total IP addresses(2^4 = 16)Step 3: AWS reserved IPs5 IP addresses.Step 4: Usable IPs16 − 5 = 11Final An..
NAVEEN KUMAR J
NAVEEN KUMAR J 2 days ago
To create and configure a VPC, I first create the VPC with a suitable CIDR range, then create public and private subnets across multiple Ava..
Thamimul ansari
Thamimul ansari 2 days ago
By default, the root EBS volume is deleted when its EC2 instance is terminated, while additional attached EBS volumes are preserved unless y..
Thamimul ansari
Thamimul ansari 2 days ago
You cannot delete an EBS volume while it is attached to an EC2 instance; AWS requires you to detach it first.
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