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Hi Aishwarya, </div>
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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.
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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:</div>
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chmod 600 private_key</div>
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Then you can use this key with SSH like this:</div>
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ssh -i private_key USER@OTHER-INSTANCE</div>
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Hope that helps. </div>
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Regards, </div>
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Neil </div>
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<div><b>From: </b>aishwarya.adyanthaya@accenture.com</div>
<div><b>Sent: </b>Thursday, 30 July 2015 05:24</div>
<div><b>To: </b>openstack-operators@lists.openstack.org</div>
<div><b>Subject: </b>[Openstack-operators] ssh inside instance</div>
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<p class="MsoNormal">Hi,</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">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.</p>
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<p class="MsoNormal">I want to be able to ssh the second instance from my first instance. Could someone tell me how to work it out?</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Thank you,</p>
<p class="MsoNormal">Aishwarya Adyanthaya</p>
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