WS core is an open-source implementation of grid service container in Globus Toolkit 4 (GT 4). However, GT 4 WS core is far from a full-fledged grid service container. Basing on the Globus work, we develop CROWN Node Server, an enhanced grid service container. On the one hand, besides basic functions of a WSRF grid service container, CROWN Node Server encompasses features including remote and hot service deployment with trustworthiness, monitoring, logging and management, etc, which are important to build grid applications. On the other hand, we identify several security challenges faced by service grids, and propose CROWN-ST, which provides thorough security support for running grid services across domains. CROWN Node Server has been adopted and widely deployed in CROWN Grid to support a... wide range of applications. We evaluate the performance of Node Server, and the comparing results with GT 4 WS core are presented as well.