I bought OES netware edition 6.5 August 2007 (surprised Novell sold it to me as it was discontinued shortly thereafter).

Now I'm in the enviable position to upgrade my sbs 6.5 server running Groupwise 6.5 to GW 7. I bought Danita's excellent guide to the upgrade for groupwise 7, and am confident that I can get it done with little fuss.

After upgrading to GW7 (and making sure my blackberry server still works!), I'm thinking this would be a good time to migrate to Linux.

I'm nervous for a couple of reasons:

1) I know nothing about linux
2) After seeing all the patches available for linux, I'm concerned Linux is not as secure at netware.

Are my concerns valid?

Should I upgrade to linux, or stay with netware as long as possible?