Internet Information Services (IIS) 8.0 is a feature of Windows Server 2012. This is one area of Windows Server that has not changed radically from the previous version. That said, one welcome new feature is centralised management of secure sockets layer (SSL) certificates. Copying certificates around multiple web servers is a hassle and it is easy to get this wrong or let a certificate expire if you have many machines. Centralised SSL management lets you store all certificates on a network share, view expiry status, and set up new secure sites without manual copying. Central processing unit (CPU) throttling is another significant feature, which lets you limit the CPU time of an individual application pool. There is also better support for Non-Uniform Memory Access (Numa), which is increasingly important as servers support more processors and more RAM.