I'm trying with this guide:
http://www.codingmerc.com/blog/ios-vpn-on-demand-profile-with-openvpn/
to set up on demand. With:
# openssl pkcs12 -export -in openVPN.crt -inkey openVPN.key -certfile server.crt -name iPhone -out iPhone.p12
I create the required files, but where do I find them? I can not find it on ftp unfortunately

Thanks for your help!
regards