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

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…


Failed to save Auth settings Easy Auth Azure Authentication

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…


Failed to update App Service Plan the sites exceed maximum number of slots

After some testing I wanted to scale down my 5 instances of Standard S3 plan machines and I got this error when scaling down to FREE: Failed to update App Service plan : {“Code”:”Conflict”,”Message”:”The site(s) ” exceed maximum number of slots allowed for the hosting plan. Remove all deployment slots before scaling to a different…


500.79 Internal Server Error

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…


How to see the cipher suites on an 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…


Socket Exception in Azure App services

This article will briefly discuss socket exceptions and how to investigate such issues in Azure App Service.In Azure App Service, the number of outbound connections are restrictive based on the size of the VM. Below are the machine wide TCP limits (as documented here.) Limit name Description Small (A1) Medium (A2) Large (A3) Connections Number…


Create an Azure App Service Web App using PowerShell

There are numerous place to find this same example, but while I am ramping up my Azure PowerShell #Azure #AzurePowerShell #PowerShell skills, I though I’d go ahead and document it up so I have all this information in a single place for future reference.  While I am at it, I might as well share it…


Using FTPS with Azure App Services

Using FTPS is a very interesting area.  I read a lot about it, but can’t really ever get to the point where I finish the article and know where I need to go then.  Point is, using any form of SSL or TLS is a negotiation between a client and the server.  Most of the…


How to configure log4net on Azure App Service

Although I fully recommend using Application Insights (see here) for monitoring your Azure features, I get asked sometimes how to configure log4net onto an Azure App Service.  So, this is how I did it. Install the log4net.dll binary using NuGet Configure the log4net name, type properties in the web.config Configure the log4net properties Modify the…