You can manage users using either the 文件用户 page in the 管理控制台 or using NSS tools. NSS is a set of libraries designed to support cross-platform development of security-enabled client and server applications. Applications built with NSS can support SSL v2 and v3, TLS, PKCS #5, PKCS #7, PKCS #11, PKCS #12, S/MIME, X.509 v3 certificates, and other security standards. For detailed information, link to the following URLs:
Network Security Services (NSS) at http://www.mozilla.org/projects/security/pki/nss/
NSS Security Tools at http://www.mozilla.org/projects/security/pki/nss/tools/
Overview of NSS at http://www.mozilla.org/projects/security/pki/nss/overview.html