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Exchange server custom settings related

ititmem 1 Reputation point
2021-03-17T00:20:46.937+00:00

hi.
exchange You want to upgrade your on-premises 2013 cu. (cu8 to cu23)

When I upgrade, the custom settings are overwritten. What do I need to back up?

What I backed up were IIS backup and the FrontEnd folder in the exchange installation directory, and the Bin folder.

Exchange | Exchange Server | Management
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  1. Yuki Sun-MSFT 41,376 Reputation points Moderator
    2021-03-17T02:45:08.29+00:00

    Hi @ititmem ,

    To backup the customization files before upgrading Exchange, please check the file locations listed below, make a backup for the files you have customized:

    • %ExchangeInstallPath%Bin\MSExchangeMailboxReplication.exe.config
    • %ExchangeInstallPath%FrontEnd\HttpProxy\Sync\web.config
    • %ExchangeInstallPath%ClientAccess\Sync\web.config
    • %ExchangeInstallPath%FrontEnd\HttpProxy\ews\web.config
    • %ExchangeInstallPath%ClientAccess\exchweb\ews\web.config
    • %ExchangeInstallPath%FrontEnd\HttpProxy\owa\web.config
    • %ExchangeInstallPath%ClientAccess\Owa\web.config

    In addition, it's recommended to see the Upgrade Exchange to the latest Cumulative Update article for the other best practices when installing Exchange Cumulative Updates.

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