Installation of Blazor on Mac OS X

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Blazor is a feature of .Net that allows for client-side web applications to be built via CSS, HTML, and C#. Apps written in Blazor can be written on almost any platform, including the Mac. This blog post walks through the installation process as documented on the MS Blazor Tutorial website.

Blazor’s tech stack is part of Microsoft’s .Net developer platform. Because of that, the first thing we need to do is install the .Net Software Developer Kit (SDK).

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Troubleshooting - AWS EC2 - "Load key '/documents/awskey.pem' : bad permissions

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Problem:

This error is encountered when attempting to connect to an EC2 instance via SSH with a .pem file that doesn’t have the appropriate linux filesystem permissions in place.

Recommended Fix:

  • CD to the directory where the file exists

  • Type : sudo chmod 400 <filename>

The next time you run ssh it should work.

Background:

I ran into this issue on a Macbook Pro running OS X. My file permissions were “too open” for use. The file permissions before I made the change were set to 0644 which threw the error.