In this context, a "node" refers to an instance of an operating system, whether or not it is part of a cluster or a standalone system, and the node name is a separate entity from the host name.

在这个上下文中，“节点”是指一个操作系统实例，它可能是集群的一部分或单独的系统，节点名与主机名是不同的实体。

youdao

The Board, unlike the Merc, didn't have its own electronic system and cleared trades through a separate entity.

FORBES: Up From the Pits