Renew Application Gateway certificates
At some point, you'll need to renew your certificates if you configured your application gateway for SSL encryption.
You can renew a certificate associated with a listener using either the Azure portal, Azure PowerShell, or Azure CLI:
To renew a listener certificate from the portal, navigate to your application gateway listeners. Click the listener that has a certificate that needs to be renewed, and then click Renew or edit selected certificate.
Upload your new PFX certificate, give it a name, type the password, and then click Save.
To renew your certificate using Azure PowerShell, use the following script:
$appgw = Get-AzureRmApplicationGateway ` -ResourceGroupName <ResourceGroup> ` -Name <AppGatewayName> $password = ConvertTo-SecureString ` -String "<password>" ` -Force ` -AsPlainText set-azureRmApplicationGatewaySSLCertificate -Name <oldcertname> ` -ApplicationGateway $appgw -CertificateFile <newcertPath> -Password $password Set-AzureRmApplicationGateway -ApplicationGateway $appgw
az network application-gateway ssl-cert update \ -n "<CertName>" \ --gateway-name "<AppGatewayName>" \ -g "ResourceGroupName>" \ --cert-file <PathToCerFile> \ --cert-password "<password>"
To learn how to configure SSL Offloading with Azure Application Gateway, see Configure SSL Offload
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