I recently had to renew my self-signed SSL certificate used to publish my Outlook Web Access with Microsoft ISA Server 2004. As it’s been a while since I’ve done OWA publishing, I found myself scrambling for information on the internet until I eventually managed to compile this document. As I would like to use this again in the future, I though I'd post it here for reference.
I always used to use the Microsoft Windows Certification Authority to sign my own SSL certificates, but as I don’t really like the way the Windows Certification Authority does things, and I do like the way OpenSSL does things, so I opted to use OpenSSL on good old trustworthy openSUSE Linux to:
Create a new Certification Authority that I can use for all my private sites
Create a new x509 SSL Certificate to replace the current soon-to-expire SSL certificate in use by my OWA setup.