Disabling TLS 1.0 and 1.1 in IIS



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    Katie Garrison

    Hi Marc,

    Just following up, starting in Sisense 7.4 (recently released), it became pretty straightforward to disable traffic on TLS 1.0 and 1.1.

    Setting this up involves two steps:

    1. Force traffic through TLS 1.2 on the Sisense site
      This can be done through the Configuration Manager on localhost:3030 (starting on Sisense 7.4)
    2. Disable TLS 1.0 and 1.1 on the widows machine
      You can follow instructions such as these to disable TLS 1.0 and 1.1

    On versions prior to Sisense 7.4 you can disable TLS 1.0 and 1.1 from the web server (step 2 above) but you will need to test extensively to ensure no loss of functionality. Starting in Sisense 7.4 is where R&D began in depth testing to remove any components that could rely on TLS 1.0 or 1.1.

    We have seen success with organization on Sisense 7.2 and 7.3 disabling TLS 1.0 and 1.1 on the server but again, there is not guarantee that there will not be a loss in functionality and testing by your team is needed.

    Hope this helps,
    Katie Garrison | Technical Solutions Consultant

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