00003 if you get an error saying that ssh key is too open

• https://chatgpt.com/share/68aa8fe0-d868-800c-a439-eb56bd14d061

The error is because your private key file ssh-key-2025-08-24.key has too open permissions (0664).

SSH requires private key files to be readable only by you, not by group or others.

Fix

Run this in your terminal:

chmod 600 ssh-key-2025-08-24.key

This sets permissions so that only you (the owner) can read/write the key.

Then retry SSH

ssh -i ssh-key-2025-08-24.key ubuntu@140.245.235.255

It should work now ✅.

Would you like me to also show you how to permanently add this key to your ~/.ssh/config so you don’t have to type -i ssh-key-2025-08-24.key every time?