VPS / Reseller questions

• Can i upgrade the specs of the VPS, e.g. memory, cpu or hard drive space increases?
• Can i buy additional IP Addresses?
• Can other VPS customers crash my VPS service?
• Do I get Full Administrator or Root access to my VPS?
• Firewall?
• How do I change my root password?
• How do I find a file in Shell?
• How do I view my IP address?
• How long after I place my order will it take for my VPS become live?
• How many virtual servers per physical host?
• My VPS has died how do I bring it up again?
• What can I do with my VPS?
• What is VPS hosting?