28.6. Adding TLS encryption to an Apache HTTP Server

Procedure

1. Install the mod_ssl package:

   # dnf install mod_ssl

2. Edit the /etc/httpd/conf.d/ssl.conf file and add the following settings to the <VirtualHost _default_:443> directive:

   1. Set the server name:

      ServerName example.com

      The server name must match the entry set in the Common Name field of the certificate.

   2. Optional: If the certificate contains additional host names in the Subject Alt Names (SAN) field, you can configure mod_ssl to provide TLS encryption also for these host names. To configure this, add the ServerAliases parameter with corresponding names:

      ServerAlias www.example.com server.example.com

   3. Set the paths to the private key, the server certificate, and the CA certificate:

      SSLCertificateKeyFile "/etc/pki/tls/private/example.com.key"
      SSLCertificateFile "/etc/pki/tls/certs/example.com.crt"
      SSLCACertificateFile "/etc/pki/tls/certs/ca.crt"

3. For security reasons, configure that only the root user can access the private key file:

   # chown root:root /etc/pki/tls/private/example.com.key
   # chmod 600 /etc/pki/tls/private/example.com.key

   警告

   If the private key was accessed by unauthorized users, revoke the certificate, create a new private key, and request a new certificate. Otherwise, the TLS connection is no longer secure.