Openssl check if certificate chain is available from web server

Sometime you SSL provider maybe change the certificate chain for certificates you get from them. GoDaddy has changed in the last year, and a few years ago Network Solutions had changed because of a renewal date. When you get a SSL certificate from a provider you are often given the option to get the certificate chain. This is so that your web servers can make available to visiting clients the root and intermediate certificates so that the visiting client can confirm if the certificates are trusted.

using the following openssl command line will display the certificate depth, you want greater then 0, as well as the certificates.
openssl s_client -connect server:port -showcerts

Hope this help someone.

Keeping Track of Virtual Macines

Found this handy method so a virtual machine can detect if it is running in MS environment or a VMware environment. I would like to find out if there is a method from the Guest OS to tell the servername of the Virtual Host/Server it is running on.

I know for MS Virtual Server vbscript to list the guest info:
http://www.microsoft.com/technet/scriptcenter/scripts/vs/default.mspx


detect from guest os if in a MS Virtual Server Environment or a VMWare:
http://x86virtualization.com/intel/vbscript-checking-for-virtual-host.html

Vendor table for Mac Addresses

Can be found here:

http://standards.ieee.org/regauth/oui/index.shtml