> For the complete documentation index, see [llms.txt](https://docs.natsclub.cn/cn/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.natsclub.cn/cn/yun-xing-yi-ge-nats-fu-wu/configuration/securing_nats.md).

# 安全加固NATS

The NATS server provides several forms of security:

* Connections can be [*encrypted* with TLS](/cn/yun-xing-yi-ge-nats-fu-wu/configuration/securing_nats/tls.md)
* Client connections can require [*authentication*](/cn/yun-xing-yi-ge-nats-fu-wu/configuration/securing_nats/auth_intro.md)
* Clients can require [*authorization*](/cn/yun-xing-yi-ge-nats-fu-wu/configuration/securing_nats/authorization.md) for subjects they publish or subscribe to