AWS - EC2 - Ubuntu 实例公共 ip 拒绝连接

Question

AWS - EC2 - Ubuntu instance has been working good from past 1 month. Today morning when I connected to it, it is asked for system restart & packages update.

So I used

sudo reboot

For system restart

sudo apt-get update
sudo apt-get upgrade
sudo apt-get dist-upgrade

packages update

From then onwards I am unable to connect to public ip

our public ip is 3.215.105.115

I tried curl localhost

It is showing

curl: (7) Failed to connect to localhost port 80: Connection refused

Answer 1

Do the following:

• Stop the instance.
• Detach the root volume.
• Attach the root volume to a known working instance.
• Run filesystem check (fsck –a /dev/...).
• Fix any errors.
• Detach the volume from the known working instance.
• Attach the volume to the stopped instance.
• Start the instance.

For more details, see the section titled "Start a Debug Linux Instance" here: How to Recover an Unreachable Linux Instance