SSH connection to Amazon EC2 in Linux

ubuntu amazon-ec2 openssh
MA1 picture MA1 · Jan 24, 2012 · Viewed 39.5k times · Source

I am trying to ssh to amazon ec2 instance from shell using the following command

ssh -vi sec.ppk [email protected]

but failed to connect

Here is the debug output generated by the above command

OpenSSH_5.3p1 Debian-3ubuntu7, OpenSSL 0.9.8k 25 Mar 2009
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
debug1: Connecting to ec2-xx.compute-1.amazonaws.com port 22.
debug1: Connection established.
debug1: identity file security1.ppk type -1
debug1: Remote protocol version 2.0, remote software version OpenSSH_5.5p1 Debian-4ubuntu5
debug1: match: OpenSSH_5.5p1 Debian-4ubuntu5 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_5.3p1 Debian-3ubuntu7
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server->client aes128-ctr hmac-md5 none
debug1: kex: client->server aes128-ctr hmac-md5 none
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
debug1: Host 'ec2-xx.compute-1.amazonaws.com' is known and matches the RSA host key.
debug1: Found key in /home/ma/.ssh/known_hosts:9
debug1: ssh_rsa_verify: signature correct
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey
debug1: Next authentication method: publickey
debug1: Trying private key: sec.ppk
debug1: PEM_read_PrivateKey failed
debug1: read PEM private key done: type <unknown>
Enter passphrase for key 'sec.ppk':

Why it is asking passphrase for sec.ppk

What is the issue? Can anyone help?

Forgot to mention that i successfully made a connection using FileZilla with same above credentials

Answer

Hasanavi picture Hasanavi · Jan 24, 2012

Try with

ssh -i /directory/keyname.pem [email protected]

Where .pem is the key pair file you've created while you setup your instance.

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