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Google Cloud Error Code 4033 - Fix it Now ?


This article covers methods to resolve Google Cloud Error Code 4033. Virtual Private Cloud (VPC) firewall rules apply to a given project and network. If you want to apply firewall rules to multiple VPC networks in an organization. 

VPC firewall rules let you allow or deny connections to or from your virtual machine (VM) instances based on a configuration that you specify. Enabled VPC firewall rules are always enforced, protecting your instances regardless of their configuration and operating system, even if they have not started up.

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ec2 key permission denied – "Authentication failed, permission denied"


This article covers method to fix the error, ec2 key permission denied. 

"Permission denied (publickey)" and "Authentication failed, permission denied" errors occur if:

  • You're trying to connect using the wrong user name for your AMI.
  • The permissions are incorrect on the instance.
  • The incorrect SSH public key (.pub) file is in the authorized_keys file.


To fix this error, simply:

  • Verify that you're using the correct user name for your AMI.
  • Also Verify that the instance's permissions are correct and that the correct SSH public key is in the authorized_keys file.

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Handle Errors in Serverless Applications with AWS


This article will guide you how to handle #errors in Serverless Applications with AWS Step Functions. Combining AWS Step Functions with AWS Lambda makes it simple to orchestrate #AWS #Lambda functions for serverless applications.

To help you deal with errors in Lambda applications, Lambda integrates with services like #Amazon CloudWatch and AWS X-Ray. You can use a combination of logs, metrics, alarms, and tracing to quickly detect and identify issues in your function code, API, or other resources that support your application.

Lambda functions can fail in three cases:

i. An unhandled exception is raised — whether if we received an invalid input, an external API failed, or just a programming bug occurred.

ii. Timeout — Lambda running longer than the configured timeout duration is violently closed with a ‘Task timed out after … seconds’ message. The default value is 6 seconds, and the maximal value is 5 minutes.

iii. Out of memory — In this case, the lambda usually terminates with ‘Process exited before completing request’. The ‘Memory Size’ is equal to ‘Max Memory Used’.

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