Open Stack

Hi Neil,

I did the same as you have suggested. I have created an instance A and generated a private_key, giving it 600 permission. Using the key I launched the instance B but when I ssh from the instance A after a while it reads:

Read from socket failed: Connection timed out

I even tried with ssh –v hostname to test on one the machine outside openstack and the instance.

root at new:/home/ubuntu# ssh -v new
OpenSSH_6.6.1, OpenSSL 1.0.1f 6 Jan 2014
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug1: Connecting to new [10.x.x.x] port 22.
debug1: Connection established.
debug1: permanently_set_uid: 0/0
debug1: identity file /root/.ssh/id_rsa type -1
debug1: identity file /root/.ssh/id_rsa-cert type -1
debug1: identity file /root/.ssh/id_dsa type -1
debug1: identity file /root/.ssh/id_dsa-cert type -1
debug1: identity file /root/.ssh/id_ecdsa type -1
debug1: identity file /root/.ssh/id_ecdsa-cert type -1
debug1: identity file /root/.ssh/id_ed25519 type -1
debug1: identity file /root/.ssh/id_ed25519-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_6.6.1p1 Ubuntu-2ubuntu2
debug1: Remote protocol version 2.0, remote software version OpenSSH_6.6.1p1 Ubuntu-2ubuntu2
debug1: match: OpenSSH_6.6.1p1 Ubuntu-2ubuntu2 pat OpenSSH_6.6.1* compat 0x04000000
debug1: SSH2_MSG_KEXINIT sent

Read from socket failed: Connection timed out

So this is what I’m getting again.

Thank you,
Aishwarya

From: Neil Jerram [mailto:Neil.Jerram at metaswitch.com]
Sent: Thursday, July 30, 2015 1:38 PM
To: Adyanthaya, Aishwarya; openstack-operators at lists.openstack.org
Subject: Re: [Openstack-operators] ssh inside instance

Hi Aishwarya,

The basic requirement here is that anyone - which really means a combination of a computer or instance, plus a user on that computer/instance - needs to have the private key that matches the public key that is installed on the target instance.

You've asked about logging in from your first instance ‎- let's call it A - so you need to save the private key in a file on A - let's call it private_key - and give it 600 permissions:

    chmod 600 private_key

Then you can use this key with SSH like this:

    ssh -i private_key USER at OTHER-INSTANCE

Hope that helps.

Regards,
      Neil

From: aishwarya.adyanthaya at accenture.com<mailto:aishwarya.adyanthaya at accenture.com>
Sent: Thursday, 30 July 2015 05:24
To: openstack-operators at lists.openstack.org<mailto:openstack-operators at lists.openstack.org>
Subject: [Openstack-operators] ssh inside instance


Hi,

I’ve launched two instances from my openstack dashboard. Firstly I created instance one, where I generated a key through the ssh-keygen command, pasting the public key contents to import key in the access and security. Using this key I launched second instance.

I want to be able to ssh the second instance from my first instance. Could someone tell me how to work it out?

Thank you,
Aishwarya Adyanthaya

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