| Red Hat Linux 7.1: The Official Red Hat Linux Reference Guide | ||
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If you already have an existing key and certificate (for example, if you are installing the secure Web server to replace another company's secure Web server product), you will probably be able to use your existing key and certificate with the secure Web server. In the following two situations, you will not be able to use your existing key and certificate:
If you are changing your IP address or domain name — You can not use your old key and certificate if you are changing your IP address or domain name. Certificates are issued for a particular IP address and domain name pair. You will need to get a new certificate if you are changing your IP address or domain name.
If you have a certificate from VeriSign and you are changing your server software — VeriSign is a widely used CA. If you already have a VeriSign certificate for another purpose, you may have been considering using your existing VeriSign certificate with your new secure Web server. However, you will not be allowed to, because VeriSign issues certificates for one particular server software and IP address/domain name combination.
If you change either of those parameters (for example, if you previously used another secure Web server product and now you want to use the secure Web server), the VeriSign certificate you obtained to use with the previous configuration will not work with the new configuration. You will need to obtain a new certificate.
If you have an existing key and certificate that you can use, you will not have to generate a new key and obtain a new certificate. However, you may need to move and rename the files which contain your key and certificate.
Move your existing key file to:
/etc/httpd/conf/ssl.key/server.key |
Move your existing certificate file to:
/etc/httpd/conf/ssl.crt/server.crt |
After you have moved your key and certificate, skip to the section called Testing Your Certificate.
If you are upgrading from the Red Hat Secure Web Server versions 1.0 and 2.0, your old key (httpsd.key) and certificate (httpsd.crt) will be located in /etc/httpd/conf/. You will need to move and rename your key and certificate, so that the secure Web server can use them. Use the following two commands to move and rename your key and certificate files:
mv /etc/httpd/conf/httpsd.key /etc/httpd/conf/ssl.key/server.key mv /etc/httpd/conf/httpsd.crt /etc/httpd/conf/ssl.crt/server.crt |
Then start your secure Web server as described in the section called Starting and Stopping httpd in Chapter 14. You should not need to get a new certificate, if you are upgrading from a previous version of the secure Web server.