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How to Regenerate an expired self signed certificate

    Question

  •  

    Hi,

     

    We have exchange 2007 server on which a self signed certificate was installed.

    AS self signed cerificate validity is only for one year the self signed certificate has expired now as one year has passed.

    How can i generate a new self signed certificate for my exchange  server.

     

    Regards,

     

    Tushar

    Wednesday, October 17, 2007 4:38 PM

All replies

  • You must run the Exchange cmdlet New-ExchangeCertificate

     

    Deli

     

    Thursday, October 18, 2007 7:35 PM
  •  

    Deli,

     

    So after regenarating a new self signed certificate will i have to install the certificate again on all my client machines for accessing https://pop.test.org/owa url without giving me  an  certificate error?

     

    Regards,

     

    Tushar 

    Thursday, October 18, 2007 8:53 PM
  • Yes that is true

     

    Actually you want to install certificate services and create a root certificate that has a lifetime of minimum 5 year to 20 years (your choice) and install that certificate on your clients

     

    Create a certificate for your exchange server requesting the certificate from your internal certification authority and install it into your exchange server (default 2 years valid)

    Renewing the certificate does not need any change on clients as they have the root certificate that is valid for 5 to 20 years

     

    You can follow the procedure here:

    http://forums.microsoft.com/TechNet/ShowPost.aspx?PostID=2252963&SiteID=17

     

    Deli

     

    Thursday, October 18, 2007 9:17 PM
  • Hi Please follow the detailed instructions here:

    How to Renew Self Signed Exchange Certificate

    • Proposed as answer by A. TheOne Wednesday, July 25, 2012 2:47 PM
    Wednesday, July 25, 2012 2:47 PM