Connect over ssh using a .pem file

Question

I would like to know how to connect over ssh using a .pem file to any server.

Currently I'm executing the following command:

ssh [email protected]

What option should I use?

Answer 1

Use the -i option:

ssh -i mykey.pem [email protected]

As noted in this answer, this file needs to have correct permissions set. The ssh man page says:

ssh will simply ignore a private key file if it is accessible by others.

You can change the permissions with this command:

chmod go= mykey.pem

That is, set permissions for group and others equal to the empty list of permissions.

Answer 2

chmod 400 mykey.pem

ssh -i mykey.pem [email protected]

Will connect you over ssh using a .pem file to any server.

Answer 3

For AWS if the user is ubuntu use the following to connect to remote server.

chmod 400 mykey.pem

ssh -i mykey.pem ubuntu@your-ip

Answer 4

To connect from Terminal to AWS AMI:

chmod 400 mykey.pem

ssh -i mykey.pem [email protected]

Answer 5

You can connect to a AWS ec-2 instance using the following commands.

chmod 400 mykey.pem

ssh -i mykey.pem username@your-ip

by default the machine name usually be like ubuntu since usually ubuntu machine is used as a server so the following command will work in that case.

ssh -i mykey.pem ubuntu@your-ip