I am by no means a server professional, that is why I am coming to you guys for advice.
Our company is looking to purchase an office building that is currently wired for ethernet. We are going to rent part of the building to the current tenants, and take over the remaining part. We want to hook up a small server for file sharing, active directory and network licensing managers (I assume Windows Server 2012 Essentials is our way to go). Should we purchase our own switch to hook our offices and server into? Or, can we just hook straight into the switches/hubs that are already wired up? We only have 6 office employees at the moment.
Is this a security concern and would having our own switch even help alleviate security issues?