Issue
This is probably a stupidly simple question to some :)
I've created a new linux instance on Amazon EC2, and as part of that downloaded the .pem file to allow me to SSH in.
When I tried to ssh with:
ssh -i myfile.pem <public dns>
I got:
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@ WARNING: UNPROTECTED PRIVATE KEY FILE! @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
Permissions 0644 for 'amazonec2.pem' are too open.
It is recommended that your private key files are NOT accessible by others.
This private key will be ignored.
bad permissions: ignore key: amazonec2.pem
Permission denied (publickey).
Following this post I tried to chmod +600 the pem file, but now when I ssh I just get:
Permission denied (publickey).
What school-boy error am I making here? The .pem file is in my home folder (in osx). It's permissions look like this:
-rw-------@ 1 mattroberts staff 1696 19 Nov 11:20 amazonec2.pem
Solution
The problem is having wrong mod on the file.
Easily solved by executing -
chmod 400 mykey.pem
Taken from Amazon's instructions -
Your key file must not be publicly viewable for SSH to work. Use this command if needed: chmod 400 mykey.pem
400 protects it by making it read only and only for the owner.
Answered By - Kof Answer Checked By - Gilberto Lyons (WPSolving Admin)