How to create a self-signed SAN certificate, wildcard certificate vs SAN

SSL TLS Certificate
SSL TLS Certificate

I have some domain names that I use for testing out Azure features, write some blogs and other fun stuff.  I find myself needing, wanting to use HTTPS and using the instructions I wrote some time ago, see below, to create the certificate is long and tedious.  I had an epiphany which lead me to…

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How to delete a VNET from the Azure portal

VNET Azure
VNET Azure

After writing this article here “Create a VNET and access an Azure VM hosted within it from an App Services Web App” I wanted to then remove the resources because I was using them for testing and not for a real production, money generating project.  I also wrote this article here “Create and deploy an…

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Failed to save Auth settings Easy Auth Azure Authentication

Azure App Service
Azure App Service

When I tried to configure a a URL into the ALLOWED EXTERNAL REDIRECT URLS text box, as shown in Figure 1, I received the following error. The initial thought was that because the domain I was trying to add was a multi-subdomain format like:  public.admin.contoso.com that for some reason wasn’t liking that. What I figured…

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500.79 Internal Server Error

Azure Active Directory (AAD)
Azure Active Directory (AAD)

I got this exception when I was trying to configure the Azure Active Directory authentication in Advance management mode for an Azure App Service.  Basically, I was following the (Alternative Method) instructions described here.  After following all the instructions, I was getting this exception, as shown in Figure 1. Figure 1, 500 79 internal server…

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Add a new user to my Azure Subscription

Microsoft Azure
Microsoft Azure

I wanted to add a new user to my subscription and I wanted to make that person an Owner.  This is how I did it. Create the account Grant the account access to the subscription Create the account I logged into the Azure management portal and navigated to Azure Active Directory and clicked ‘Add a…

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How to see the cipher suites on an Azure App Service

Azure App Service
Azure App Service

I wrote an article here about TLS 1.2 which listed out the cipher suite used to negotiate security settings (encryption) between a client and server via a Network Monitor trace.  You can probably see the same using Wireshark.  Regardless, here is a nice Wiki article about cipher suites. It was a journey getting to the…

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Azure App Service IP Based SSL and SNI Based SSL configuration

Azure App Service
Azure App Service

25-OCT-2017: If you delete an exisiting binding during the certificate renewal process, then you likley will get a new inbound IP address allocated.  This would cause a problem with an A record DNS configuration.  Therefore, to renew a certificate, upload the new certificate, noting the new thumbprint and bind that one to the App Service domain without deleting…

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How to change associate an Azure Active Directory to a Subscription

Azure Active Directory (AAD)
Azure Active Directory (AAD)

I created an Azure Active Directory some time ago and found that it was not linked to a subscription, because when I changed between my Azure Active Directory domains, as seen in Figure 1, when I tried to create some resources within it, I got the message shown in Figure 2. Figure 1, how to…

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Set or change an Azure App Service file or folder permission

Azure App Service
Azure App Service

I was using FileZilla to try to change the file permissions and I got this error: Status: Setting permissions of ‘/site/wwwroot/index.html’ to ‘644’ Command: SITE CHMOD 644 index.html Response: 500 ‘SITE’: command not understood Status: Setting permissions of ‘/site/wwwroot/index.html’ to ‘755’ Command: SITE CHMOD 755 index.html Response: 500 ‘SITE’: command not understood Then I started…

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Machine Keys on an Azure App Service, machineKey multiple instances Azure

Azure App Service
Azure App Service

When you run an ASP.NET application on multiple instances of an App Service Plan (ASP) you do not need to worry about machineKeys as the App Service Platform will use the same one across all your instances and therefore will not need to make any changes to your application. I found this sample code and…

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Resetting FTP password, using Publish Profile credentials, Azure App Service

Azure App Service
Azure App Service

If you have ever tried to reset your deployment credentials for your Azure App Service then you would likely experience this:  “User name is not available”, as seen in Figure 1. #GermanCloud Figure 1, user name is not available when changing FTP password azure app service To workaround that, use a different username, I.e. temporarily…

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Export an Azure App Service Certificate PFX PowerShell

Azure PowerShell
Azure PowerShell

I found this article “Creating a local PFX copy of App Service Certificate” here and wanted to do a reproduction of it. I wrote an article here where I discussed “How (I) configured an App Service Certificate for my Azure App Service” which might help to get a broader perspective of what and how to…

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How (I) configured an App Service Certificate for my Azure App Service

Azure App Service
Azure App Service

Here is some good information about the App Service Certificates.  Like custom domain names, you can also purchase SSL certificates from within the Azure portal here.  I was working with a customer who was having some problems with the configuration and decided to walk through the configuration myself, and like always, will document and share…

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Azure Functions Access-Control-Allow-Credentials with CORS

Azure Functions
Azure Functions

There is a known issue documented on GitHub here with a title of Cross origin http request CORS fails with response header missing ‘Access-Control-Allow-Credentials: true’.  Although the issue described and a solution provided, I thought I would write up what I did as I use C# and didn’t see any examples of that, so here…

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How to disable TLS 1.0 on an Azure App Service Web App

Microsoft Azure
Microsoft Azure

Short answer is that you can’t. (see alternative solution below) The reason is that when you deploy an Azure App Service it goes into a multi-tenant scale unit.  A scale unit looks something like Figure 1, which I stole from here.  Also, have a look at this forums discussion here. Figure 1, Azure App Service…

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