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Can SSH into EC2 instance after reboot?
1 Answer. The public ip address of the EC2 instance will change after the reboot if the instance do not have an elastic ip address assigned. You can check the new public ip address on the EC2 console. If you attach an Elastic ip address, it will not change after reboot.
Does EC2 public IP changes after reboot?
Rebooting an Amazon EC2 instance will not change the IP of the machine. If you perform a Stop and start, the public IP of the machine will change. However if you want to retain the same public IP you can use a EIP. Also note that if you perform a stop and start, your instance will be moved to another healthy hardware.
How do I restart an EC2 instance?
Reboot your instance
- In the navigation pane, choose Instances.
- Select the instance and choose Actions, Instance state, Reboot instance.
- Choose Reboot when prompted for confirmation. The instance remains in the running state.
Why is my SSH connection refused in EC2?
No dice, same result. Even using the Connect via Java SSH client built into the EC2 console, I get Connection Refused. I checked the security groups. This instance is in group launch-wizard-4. Looking at the inbound configuration for this group, Port 22 is allowed in from 0.0.0.0/0, so that should be anywhere.
Why do I get SSH connection refused after reboot?
One other thing to check is to be sure that the instance is responding on the IP. You appear to be getting a connection refused above, which sounds like instance is up, but SSH isn’t running or is firewalled, but be sure that the instance has fully rebooted.
Is it possible to stop an Amazon EC2 instance?
If your instance is part of an Amazon EC2 Auto Scaling group, or if your instance is launched by services that use AWS Auto Scaling, such as Amazon EMR, AWS CloudFormation, AWS Elastic Beanstalk, and so on, then stopping the instance could terminate the instance.
Why does my EC2 hang when I reboot?
Had a similar behavior today on my ec2 instance, and tracked down the thing to this: when I do sudo reboot now the machine hangs and I have to restart it manually from the aws management console when I do sudo reboot it reboots just fine.