1. Sign in to the AWS Management Console: Go to https://aws.amazon.com/ and sign in to your AWS account using your credentials.
2. Navigate to AWS WAF: In the AWS Management Console, search for “WAF” in the services search bar and click on “AWS WAF” to open the AWS WAF console.
3. Select the Web ACL: In the AWS WAF console, click on “Web ACLs” in the left-hand navigation pane. Select the Web ACL that you want to configure the global rules for.
4. Add Global Rules: Within the selected Web ACL, click on the “Rules” tab. Here you will see the list of rules configured for the Web ACL.
5. Add a New Rule: Click on the “Add rules” button to add a new rule to the Web ACL.
6. Configure Global Rule: In the rule configuration window, select the rule type as “Global Rule” from the drop-down menu.
7. Define Rule Criteria: Define the criteria for the global rule based on your security requirements. This could include conditions like IP addresses, URI paths, query strings, etc.
8. Set Rule Action: Choose the appropriate action to be taken when the global rule conditions are met. This could be to allow, block, or count the request.
9. Review and Save: Review the configured global rule settings to ensure they align with your security policies. Once confirmed, click on the “Save” button to add the global rule to the Web ACL.
10. Verify Configuration: After adding the global rule, ensure that it is listed under the rules section of the Web ACL and that it is properly configured.

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1. List the current WAF Global Rules in AWS Cloud Watch using the following AWS CLI command:

aws wafv2 list-web-acls --scope REGIONAL

2. Identify the Web ACL that has empty global rules.
3. Update the Web ACL by adding appropriate global rules. You can create a new global rule or update existing ones using the AWS CLI command. For example, to create a new global rule, you can use the following command:

aws wafv2 create-rule-group --name "MyGlobalRule" --scope REGIONAL --capacity 100 --rules file://global_rules.json

4. Associate the newly created global rule with the Web ACL using the following AWS CLI command:

aws wafv2 associate-web-acl --web-acl-arn <web_acl_arn> --web-acl-name <web_acl_name> --scope REGIONAL

5. Verify that the global rules are no longer empty by listing the Web ACLs again using the command in step 1.

1. Install Boto3: Make sure you have Boto3 installed. You can install it using pip:
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   pip install boto3
   

2. Set Up Boto3 Credentials: Ensure that you have set up your AWS credentials for Boto3 to access your AWS account. You can set up your credentials using AWS CLI or environment variables.
3. Write Python Code: Use the following Python code to associate a Global WebACL with a WAF:

import boto3

def associate_global_webacl_to_waf(web_acl_arn, waf_name):
    # Initialize the WAF client
    wafv2_client = boto3.client('wafv2')

    # Get the ARN of the resource associated with the WAF
    waf_resource_response = wafv2_client.get_web_acl(
        Name=waf_name
    )
    waf_resource_arn = waf_resource_response['WebACL']['ARN']

    # Associate the Global WebACL with the WAF
    response = wafv2_client.associate_web_acl(
        WebACLArn=web_acl_arn,
        ResourceArn=waf_resource_arn
    )

    print("Global WebACL associated with WAF successfully.")

def main():
    # Specify the ARN of the Global WebACL
    web_acl_arn = 'arn:aws:wafv2:us-west-2:123456789012:global/webacl/ExampleGlobalWebACL'

    # Specify the name of the WAF to associate with
    waf_name = 'ExampleWAF'

    # Associate Global WebACL with WAF
    associate_global_webacl_to_waf(web_acl_arn, waf_name)

if __name__ == "__main__":
    main()

4. Run the Script: Execute the Python script. Upon successful execution, the Global WebACL will be associated with the specified WAF.