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Tech Document Sep 25, 2018

How to Generate Certificate Signing Request on Zimbra

This article will go into detail on how to generate certificate signing request on Zimbra.

  1. Log in as root.
  2. Adjust the following command to match your information: /opt/zimbra/bin/zmcertmgr createcsr comm -new "/C=US/ST=NJ/L=Clifton/O=Company Inc/OU=Department/CN=your.domain.com" Where:

    C = 2-digit country code

    ST = State/Province

    L = City

    O = Organization Name

    OU = Department (e.g., IT Department)

    CN = Common Name (mail.domain.com, *.domain.com)

    If you want to include more than one name in the CSR, you can add -subjectAltNames to the end of the command. Example:

    /opt/zimbra/bin/zmcertmgr createcsr comm -new "/C=US/ST=NJ/L=Clifton/O=Company Inc/OU=Department/CN=your.domain.com" -subjectAltNames "www.domain.com, secure.domain.com"

  3. Running this command will output the CSR to the following location: /opt/zimbra/ssl/zimbra/xyz/xyz.csr
  4. You will use the CSR to place the order for the certificate (select "Other" as the server software when placing your order).