Locked myself out of SSH with UFW in EC2 AWS

Question

I have an EC2 Instance with Ubuntu. I used sudo ufw enable and after only allow the mongodb port

sudo ufw allow 27017

When th

Answer 1

I have the same problem and found out that this steps works:

1- Stop your instance

2- Go to `Instance Settings -> View/Change user Data

3- Paste this

Content-Type: multipart/mixed; boundary="//"
MIME-Version: 1.0
--//
Content-Type: text/cloud-config; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment; filename="cloud-config.txt"
#cloud-config
cloud_final_modules:
- [scripts-user, always]
--//
Content-Type: text/x-shellscript; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment; filename="userdata.txt"
#!/bin/bash
ufw disable
iptables -L
iptables -F
--//

4- Start your instance

Hope it works for you