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Web Services: Configuring a Web Server for HTTPS on Apache

One of the first steps to securing any website should be to enable SSL encryption. Whether you sign your own certificate or purchase one from a third-party, the configuration is the same, and some steps are similar. This lab will allow you to practice and learn those steps and configurations.

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Path Info

Clock icon Beginner
Clock icon 10m
Clock icon Sep 11, 2020

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Table of Contents

  1. Challenge

    Generate signing request and key, and sign the Certificate

    1. First, we should elevate to root:
    sudo -i
    1. Now we should navigate somewhere to store these certificates. We could just use the default location, but I prefer keeping the certificates with the application they're protecting.
    cd /etc/httpd/conf/
    openssl req -new -newkey rsa:2048 -nodes -keyout server.key -out server.csr

    This will ask a lot of questions about where the certificate is being used. For a self-signed certificate in a temporary lab environment, just accept the default. In a production environment, you should fill all the information out.

    1. Now we sign the request:
    openssl x509 -req -in server.csr -signkey server.key -out server.crt

    With that done, we need to set up Apache.

  2. Challenge

    Configure Apache

    1. First, we should install the required module:
    yum install mod_ssl -y
    1. Edit the SSL configuration file to set the location of the SSLCertificateFile and SSLCertificateKeyFile:
    vim /etc/httpd/conf.d/ssl.conf
    1. Make sure we have an HTML file to serve:
    cd /var/www/html
    echo "This is SSL" > index.html
    1. Restart Apache:
    systemctl restart httpd
    1. Verify that everything is being served correctly:
    curl https://localhost
    curl https://localhost -k

    Remember, the error you receive on the first curl is because we're using a self-signed certificate. If that's the only error (verified by the second curl), then you've completed the steps correctly, and you're done!

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