Ask a Question

Advanced Search

Solution ID : SO17540

Last Modified : 05/02/2018

Certificate Signing Request (CSR) Generation Instructions for Nginx Server


This document provides instructions for generating a Certificate Signing Request (CSR) for Nginx Server. If this document can not be used with the server, RapidSSL recommends contacting a company that supports Nginx.

NOTE: To generate a CSR, you will need to create a key pair for your server.  If the private key file or pass phrase is lost a new private key & CSR will need to be generated and the certificate reissued using the new CSR.


To generate a CSR on Nginx, please do the following:

  1. Login to your server via your terminal client (ssh). The first step will be generating the private key.  At the prompt, type:

    openssl genrsa -out [private-key-file.key] 2048
  2. Once the private key has been generated, run the command below to generate the CSR.

    openssl req -new -key [private-key-file.key] -out [CSR-file.txt]

    - Country Name (C): Use the two-letter code without punctuation for country, for example: US or CA.
    - State or Province (S): Spell out the state completely; do not abbreviate the state or province name, for example: Oregon.
    - Locality or City (L): The Locality field is the city or town name, for example: Eugene.
    - Organization (O): If your company or department has an &, @, or any other symbol using the shift key in its name, you must spell out the symbol or omit it to enroll, for example:  XY & Z Corporation would be XYZ Corportation or XY and Z Corportation.
    - Organizational Unit (OU): This field is the name of the department or organization unit making the request.
    - Common Name (CN): The Common Name is the Host + Domain Name.  For example or
    - Optional Fields:  When promted, please do not enter your email address, challenge password or an optional company name when generating the CSR.  Pressing Enter/Return will leave these fields blank.
  3. Your CSR file will then be created.
  4. Proceed to Enrollment and paste the CSR in the enrollment form when required.

Once the certificate has been issued, refer to this link for installation instructions.