Which tool creates a Certificate Signing Request (CSR) for serving HTTPS with Apache HTTPD?
Correct Answer: E
Explanation
OpenSSL is a software library that provides cryptographic functions and tools for creating and managing SSL/TLS certificates. One of the tools included in OpenSSL is the command-line utility openssl, which can be used to generate various types of cryptographic objects, such as private keys, public keys, certificate signing requests (CSRs), and certificates. A CSR is a file that contains the information needed by a certificate authority (CA) to issue a digital certificate for a web server. A CSR includes the public key of the web server, the domain name or names that the certificate will cover, and some identifying information about the organization or individual requesting the certificate. To generate a CSR for serving HTTPS with Apache HTTPD, the openssl command can be used with the req option, which stands for request. The req option takes several parameters, such as -new, -newkey, -nodes, -keyout, and -out, to specify the details of the CSR generation process. For example, the following command will generate a new private key and a new CSR for the domain example.com, using a 2048-bit RSA algorithm, and saving the files as example.key and example.csr respectively:
openssl req -new -newkey rsa:2048 -nodes -keyout example.key -out example.csr The command will also prompt the user to enter some information for the CSR, such as the country code, state or province name, locality name, organization name, organizational unit name, common name, and email address. The common name is the most important field, as it should match the domain name or names that the certificate will cover. For example, if the certificate is for example.com, the common name should be example.com. If the certificate is for multiple domains, such as example.com and www.example.com, the common name should be one of them, and the rest should be specified as subject alternative names (SANs) in a configuration file. After the CSR is generated, it can be sent to a CA for signing and obtaining a certificate, which can then be installed and configured on the Apache HTTPD server to enable HTTPS.
References:
OpenSSL: The official website of the OpenSSL project, which provides documentation, downloads, and support for the OpenSSL software.
Apache: CSR & SSL Installation (OpenSSL) - DigiCert: A guide from DigiCert on how to create a CSR and install an SSL certificate on an Apache server using OpenSSL.
How to Generate a Certificate Signing Request (CSR) for Apache Web Server Using OpenSSL - The SSL Store™: A tutorial from The SSL Store on how to generate a CSR for an Apache web server using OpenSSL.
GoDaddy - Apache: Generate CSR (Certificate Signing Request): A step-by-step instruction from GoDaddy on how to generate a CSR for Apache 2.x using OpenSSL.
