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To start the Airbyte webserver on an EC2 instance where it was installed using abctl, you can follow these steps: 1. First, ensure you have installed abctl and set up the necessary prerequisites as described in the [Airbyte documentation](https://docs.airbyte.com/using-airbyte/getting-started/oss-quickstart#using-an-ec2-instance-with-abctl). 2. Run the following command to install and start Airbyte:

bash abctl local install --host [HOSTNAME]

Replace

[HOSTNAME]

with the fully qualified domain name (FQDN) or public IP address of your EC2 instance. This ensures that Airbyte can be accessed from outside the EC2 instance [source](https://docs.airbyte.com/using-airbyte/getting-started/oss-quickstart#using-an-ec2-instance-with-abctl). 3. Make sure that the security group configured for your EC2 instance allows inbound traffic on port 8000 (or the port you specified if different) [source](https://docs.airbyte.com/using-airbyte/getting-started/oss-quickstart#using-an-ec2-instance-with-abctl). 4. After the installation is complete, you should be able to access the Airbyte web interface by visiting

http://[HOSTNAME]:8000

in your browser. 5. To get the login credentials, run:

bash abctl local credentials

This will provide you with the email and password needed to log in to the Airbyte web interface [source](https://docs.airbyte.com/using-airbyte/getting-started/oss-quickstart#2-run-airbyte). Remember that running Airbyte over HTTP is not recommended for security reasons. If you need to run it over HTTP, you must use the

--insecure-cookies

flag:

bash abctl local install --host [HOSTNAME] --insecure-cookies

However, it's strongly advised to secure your Airbyte instance using TLS for production use [source](https://docs.airbyte.com/using-airbyte/getting-started/oss-quickstart#running-over-http).