Cannot SSH into newly launched Rocky Linux 9.1 on AWS

Rocky Linux General
1

After launching a new instance on AWS with image “Rocky Linux 9 (Official) - x86_64 Ver 9.1.20230215”, I cannot SSH into the instance with user “rocky” and the private key. Tried different SSH keys (RSA, ed25519, with length 2048, 3072) as suggested in this post but none worked:

This is reproducible when I retried launching new instances. I detached the EBS volume then attached it to a CentOS Stream 9 instance, and saw file /home/rocky/.ssh/authorized_keys is actually empty. Bug?

Anyone may feel free to try it on AWS and see.

2

Hello,

I just launched a t3.medium instance from that image with the following key:

# ssh-keygen -lf ~/.ssh/ord-dev-neil.pem
2048 SHA256:0MURaygO9XG7T4KTGTiFcg6vUzHQskxclSy3WSldh9A no comment (RSA)

I then ssh’d to this instance:

# ssh -i ~/.ssh/ord-dev-neil.pem rocky@18.221.70.52
Warning: Permanently added '18.221.70.52' (ED25519) to the list of known hosts.
[rocky@ip-172-31-34-82 ~]$ sudo ls -altr /root/original-ks.cfg
-rw-------. 1 root root 5289 Feb 15 18:06 /root/original-ks.cfg
[rocky@ip-172-31-34-82 ~]$

How are you supplying the key to the image?

3

Thanks for the quick reply. The keys were generated from AWS console launching config page. I’ll try again.

4

Now it worked. Strange - maybe an AWS provision glitch. I’ll post back if it happens again. Thanks you!

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