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You're reading from  Learn Azure Administration - Second Edition

Product typeBook
Published inDec 2023
PublisherPackt
ISBN-139781837636112
Edition2nd Edition
Concepts
Cybersecurity
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Author (1)
Kamil Mrzygłód
Kamil Mrzygłód
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Kamil Mrzygłód

Kamil Mrzygłód is a technical lead and technology advisor, working with multiple companies on designing and implementing Azure-based systems and platforms. He's a former Microsoft Azure Microsoft Most Valuable Professional (MVP) and certified trainer, who shares his knowledge via various channels, including conference speeches and open source projects and contributions. Kamil lives in Poland with his two cats and one dog, dedicating some of his time to video games, cooking, and traveling.
Read more about Kamil Mrzygłód

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Comprehending health probes

Azure Load Balancer needs to know which instances of our VMs are healthy so that it can safely distribute load there. The simplest idea is to just send a request to each machine and see whether it responds within the expected time frame. Health probes are exactly such a feature – it’s an inbuilt component of Azure Load Balancer that, once configured, will automatically discover healthy instances.

Health probes have slightly different capabilities, depending on the selected stock keeping unit (SKU), which is the selected tier of our load balancer:

  • Basic SKU supports TCP and HTTP only
  • Standard SKU supports the TCP, HTTP, and HTTPS protocols

There are also different behaviors for established TCP flows once the probe is down. For the Basic SKU, once the probe fails, TCP flows to the given backend pool will be terminated. The Standard SKU load balancer is much more forgiving and will maintain a connection, assuming there’...

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Learn Azure Administration - Second Edition
Published in: Dec 2023Publisher: PacktISBN-13: 9781837636112
© 2023 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Kamil Mrzygłód

Kamil Mrzygłód is a technical lead and technology advisor, working with multiple companies on designing and implementing Azure-based systems and platforms. He's a former Microsoft Azure Microsoft Most Valuable Professional (MVP) and certified trainer, who shares his knowledge via various channels, including conference speeches and open source projects and contributions. Kamil lives in Poland with his two cats and one dog, dedicating some of his time to video games, cooking, and traveling.
Read more about Kamil Mrzygłód

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