Technical knowledge: No technical knowledge is required for running a managed server. When you need to do something technical all you have to do is contact support and let the skilled technical support operators handle the rest. With an unmanaged server you need to have server administration skills and love working in the command line otherwise it will be very difficult to administer your server efficiently.
Alrighty than, wait to see if they'll be adding support for smartnofes. In case they don't have plans to include SMART soon, than since you're good with computers I suggest you rent a managed VPS and just dive in it. Once you get the hang of it, it's not hard. But if you will use it only for your smartnofe, than turn off any other service to minimize the attack surface (like apache, mail and other servers you won't need).
VPS can be a perfect solution for businesses that want many of the features of a dedicated server but don't have the resources to physically host, support and maintain the server hardware. A shared environment won't offer you the same bandwidth or Web hosting space that a VPS will be able to support and there are also many more constraints on the software you can run in a shared hosting environment. In contrast, a VPS will give you the freedom to install, delete, reboot and do all the functions as if you have your own server. You also get an increased level of security as each VPS is isolated and completely separate from other Virtual Private Servers on the same physical server. The environment is secure and protected and each VPS can be rebooted or stopped independently – even if a hacker infiltrates one VPS there is no access to the others using the same physical server.
If your bandwidth usage is high and your website seems slow to perform, you may need more resources than a shared website hosting plan provides. Shared hosting means you share everything - so you're restricted in how big your website can grow, and your available resources (disk space, bandwidth, etc) can be affected by the traffic flow and bandwidth usage of other websites running on the same server.
You can use Amazon VPC to host multi-tier web applications and strictly enforce access and security restrictions between your webservers, application servers, and databases. You can launch webservers in a publicly accessible subnet and application servers and databases in non-publically accessible subnets. The application servers and databases can’t be directly accessed from the Internet, but they can still access the Internet via a NAT gateway to download patches, for example. You can control access between the servers and subnets using inbound and outbound packet filtering provided by network access control lists and security groups. To create a VPC that supports this use case, you can select "VPC with Public and Private Subnets" in the Amazon VPC console wizard.
You can choose to create additional VPCs by going to the Amazon VPC page on the AWS Management Console and selecting the "Start VPC Wizard" button. You’ll be presented with four basic network topologies. Select the one that most closely resembles the network topology that you’d like to create and choose the "Create VPC" button. Once the VPC has been created, you can begin launching Amazon EC2 instances into your VPC.
A key aspect of VPS internet hosting is its virtualization capabilities. With VPS, the hosting provider divides each physical server into multiple smaller virtual servers with private and dedicated RAM and hard drive space. This provides site owners with a more isolated hosting environment without disruptions from other clients sharing server space.
Amazon Virtual Private Cloud (Amazon VPC) lets you provision a logically isolated section of the AWS Cloud where you can launch AWS resources in a virtual network that you define. You have complete control over your virtual networking environment, including selection of your own IP address range, creation of subnets, and configuration of route tables and network gateways. You can use both IPv4 and IPv6 in your VPC for secure and easy access to resources and applications.