I am the only web designer/developer at my company, which means that I am the go-to guy for anything web-related. This includes DNS & server issues. While I've learned a lot (mostly from frantic googling, stackoverflowing, and documentation scrounging), I still realize that this is an area in which I should be more knowledgeable. I'm tired of feeling lost at sea.
What resources have given you conceptual and practical knowledge of servers as they relate to your work as a web designer? Hopefully these would be online resources that I can access.