Update an HTTPS listener for your Application Load Balancer

After you create an HTTPS listener, you can replace the default certificate, update the certificate list, or replace the security policy.

Replace the default certificate

You can replace the default certificate for your listener using the following procedure. For more information, see Default certificate.

Console

To replace the default certificate

1. Open the Amazon EC2 console at https://console.aws.amazon.com/ec2/.

2. On the navigation pane, choose Load Balancers.

3. Select the load balancer.

4. On the Listeners and rules tab, choose the text in the Protocol:Port column to open the detail page for the listener.

5. On the Certificates tab, choose Change default.

6. Within the ACM and IAM certificates table, select a new default certificate.

7. (Optional) By default, we select Add previous default certificate to listener certificate list. We recommend that you keep this option selected, unless you currently have no listener certificates for SNI and rely on TLS session resumption.

8. Choose Save as default.

AWS CLI

To replace the default certificate

Use the modify-listener command.

aws elbv2 modify-listener \
    --listener-arn listener-arn \
    --certificates CertificateArn=new-default-certificate-arn

CloudFormation

To replace the default certificate

Update the AWS::ElasticLoadBalancingV2::Listener.

Resources:
  myHTTPSListener:
    Type: 'AWS::ElasticLoadBalancingV2::Listener'
    Properties: 
      LoadBalancerArn: !Ref myLoadBalancer
      Protocol: HTTPS
      Port: 443
      DefaultActions:
        - Type: "forward"
          TargetGroupArn: !Ref myTargetGroup
      SslPolicy: ELBSecurityPolicy-TLS13-1-2-2021-06
      Certificates: 
        - CertificateArn: new-default-certificate-arn

Add certificates to the certificate list

You can add certificates to the certificate list for your listener using the following procedure. If you created the listener using the AWS Management Console, we added the default certificate to the certificate list for you. Otherwise, the certificate list is empty. Adding the default certificate to the certificate list ensures that this certificate is used with the SNI protocol even if it is replaced as the default certificate. For more information, see SSL certificates for your Application Load Balancer.

Console

To add certificates to the certificate list

1. Open the Amazon EC2 console at https://console.aws.amazon.com/ec2/.

2. On the navigation pane, choose Load Balancers.

3. Select the load balancer.

4. On the Listeners and rules tab, choose the text in the Protocol:Port column to open the detail page for the listener.

5. Choose the Certificates tab.

6. To add the default certificate to the list, choose Add default to list.

7. To add nondefault certificates to the list, do the following:

   1. Choose Add certificate.

   2. To add certificates that are already managed by ACM or IAM, select the check boxes for the certificates and choose Include as pending below.

   3. To add a certificate that isn't managed by ACM or IAM, choose Import certificate, complete the form, and choose Import.

   4. Choose Add pending certificates.

AWS CLI

To add a certificate to the certificate list

Use the add-listener-certificates command.

aws elbv2 add-listener-certificates \
    --listener-arn listener-arn \
    --certificates \
        CertificateArn=certificate-arn-1 \
        CertificateArn=certificate-arn-2 \
        CertificateArn=certificate-arn-3

CloudFormation

To add certificates to the certificate list

Define a resource of type AWS::ElasticLoadBalancingV2::ListenerCertificate.

Resources: 
  myCertificateList:
    Type: 'AWS::ElasticLoadBalancingV2::ListenerCertificate'
    Properties:
      ListenerArn: !Ref myTLSListener
      Certificates:
        - CertificateArn: "certificate-arn-1"
        - CertificateArn: "certificate-arn-2"
        - CertificateArn: "certificate-arn-3"

Remove certificates from the certificate list

You can remove certificates from the certificate list for an HTTPS listener using the following procedure. After you remove a certificate, the listener can no longer create connections using that certificate. To ensure that clients are not impacted, add a new certificate to the list and confirm that connections are working before you remove a certificate from the list.

To remove the default certificate for a TLS listener, see Replace the default certificate.

Console

To remove certificates from the certificate list

1. Open the Amazon EC2 console at https://console.aws.amazon.com/ec2/.

2. On the navigation pane, choose Load Balancers.

3. Select the load balancer.

4. On the Listeners and rules tab, select the text in the Protocol:Port column to open the detail page for the listener.

5. On the Certificates tab, select the check boxes for the certificates and choose Remove.

6. When prompted for confirmation, enter confirm and choose Remove.

AWS CLI

To remove a certificate from the certificate list

Use the remove-listener-certificates command.

aws elbv2 remove-listener-certificates \
    --listener-arn listener-arn \
    --certificates CertificateArn=certificate-arn

Update the security policy

When you create an HTTPS listener, you can select the security policy that meets your needs. When a new security policy is added, you can update your HTTPS listener to use the new security policy. Application Load Balancers do not support custom security policies. For more information, see Security policies for your Application Load Balancer.

Updating the security policy can result in disruptions if the load balancer is handling a high volume of traffic. To decrease the possibility of disruptions when your load balancer is handling a high volume of traffic, create an additional load balancer to help handle the traffic or request an LCU reservation.

Using FIPS policies on your Application Load Balancer

All secure listeners attached to an Application Load Balancer must use either FIPS security policies or non-FIPS security policies; they cannot be mixed. If an existing Application Load Balancer has two or more listeners using non-FIPS policies and you want the listeners to use FIPS security policies instead, remove all listeners until there is only one. Change the security policy of the listener to FIPS and then create additional listeners using FIPS security policies. Alternatively, you can create a new Application Load Balancer with new listeners using only FIPS security policies.

Console

To update the security policy

1. Open the Amazon EC2 console at https://console.aws.amazon.com/ec2/.

2. On the navigation pane, choose Load Balancers.

3. Select the load balancer.

4. On the Listeners and rules tab, select the text in the Protocol:Port column to open the detail page for the listener.

5. On the Security tab, choose Edit secure listener settings.

6. In the Secure listener settings section, under Security policy, choose a new security policy.

7. Choose Save changes.

AWS CLI

To update the security policy

Use the modify-listener command.

aws elbv2 modify-listener \
    --listener-arn listener-arn \
    --ssl-policy ELBSecurityPolicy-TLS13-1-2-Res-2021-06

CloudFormation

To update the security policy

Update the AWS::ElasticLoadBalancingV2::Listener resource with the new security policy.

Resources:
  myHTTPSListener:
    Type: 'AWS::ElasticLoadBalancingV2::Listener'
    Properties: 
      LoadBalancerArn: !Ref myLoadBalancer
      Protocol: HTTPS
      Port: 443
      DefaultActions:
        - Type: "forward"
          TargetGroupArn: !Ref myTargetGroup
      SslPolicy: ELBSecurityPolicy-TLS13-1-2-2021-06
      Certificates: 
        - CertificateArn: certificate-arn

HTTP header modification

HTTP header modification enables you to rename specific load balancer generated headers, insert specific response headers, and disable server response header. Application Load Balancers support header modification for both request and response headers.

For more information, see Enable HTTP header modification for your Application Load Balancer.