On Amazon EC2 is it possible to reassign a keypair to an already running instance?
I am having problem with a particular keypair and am wondering if there is a way to fix it by reassign it.
Thanks
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59answers:
2
+2
A:
The best solution we have been able to come up with is to burn an AMI from the running instance and launch a new instance from that AMI using the new key pair.
Every instance we launch is based on a custom AMI that we maintain for this and many other reasons.
I'm interested to hear if anyone has a better approach.
Eric J.
2010-02-02 03:32:35
How do you burn an AMI for the instance? Does that capture all of the data as well?
resonantmedia
2010-02-02 04:16:48
See http://docs.amazonwebservices.com/AWSEC2/latest/UserGuide/index.html?PreparingAndCreatingAMIs.html for how to create your own AMIs.
gareth_bowles
2010-02-02 16:18:22
A:
Probably ... just guessing based on what I've done in a few instances:
- Log into the instance with ssh. If that's the problem, you're pretty much stuck
- SFTP the public key from the new pair and put it in place in the .ssh authorized keys
- Restart the sshd
Now, try accessing with the private key that matches the public one you put in place.
But I fear the problem you have is getting in when the pair AWS put in place has gone bad. No help there.