Hunting Down a Classic Error: "Page Cannot be Displayed"

Was assisting a customer on a critical server-down situation with a very generic error: “Page cannot be displayed….”. This is a classic error and puts you on an open-ended troubleshooting venue. One of the things you want to do first is to ask yourself few questions: Wasn’t this Server working fine when it restarted last…

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Binding Multiple Sites With Single SSL Certificate

One of our Premier customers called me the other day needing assistance on running multiple web sites with a single SSL certificate using the same port. The idea was clever, especially when you have many several sites but only a handful of SSL certificates. But how do you solve this one-Cert-fits-all issue? There are two ways…

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SSL Certificate Disappears After Binding into IIS site

Just the other day, I was engaged with an Enterprise customer while he was experiencing an SSL Cert déjà vu, it was disappearing from the IIS binding. It was interesting for sure, and hence the preclude for blogging it! First thing first, what’s the error message here? An event similar to the following is logged in…

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Hosting multiple websites: IP or Host Headers?

IIS supports multiple Web sites on a single server. To create and host multiple Web sites, you must configure a unique identity for each site on the server. To assign a unique identity, distinguish each Web site with at least one of three unique identifiers:  an IP address, or a TCP port number or a…

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How to disable SSL 2.0 or SSL 3.0 from IIS Server

Recently I have assisted couple of enterprise engineers in disabling a specific version SSL from IIS Servers to mitigate a vulnerability that they were facing. In both cases, I found that engineers were little confused as to what registry change that they needed to apply since there were Client and Server portion of the Registry…

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How to call a SSL web page programmatically

Not all days are equal. Recently, my day was challenged with a fun but daunting task: to assist a customer to write some C# code to call a https webpage programmatically. Here is what we ended up coding the login page: Note: Since every site is different, you will need to collect Fiddler trace to intercept the form data…

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How to set hostname during SSL binding in IIS7

Recently I have talked to few customers who were looking for a way to add hostname on SSL binding. They were using IIS7 and unable to use the IIS Manager UI for it. In fact, IIS Manager “Add Site Binding” UI had the “Host name” field greyed out! Here is how to resolve it. Note:…

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