# Sentry nodes - What they are! - How they work! - Why they exist!

**URL:** <https://forum.cosmos.network/t/sentry-nodes-what-they-are-how-they-work-why-they-exist/379>\
**Category:** Validation\
**Created:** [June 29, 2018, 8:08pm UTC](https://forum.cosmos.network/t/sentry-nodes-what-they-are-how-they-work-why-they-exist/379 "2018-06-29T20:08:36Z")\
**Posts on this page:** 1\
**Showing post:** 10

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**Author:** ![kwunyeung](https://yyz1.discourse-cdn.com/flex031/user_avatar/forum.cosmos.network/kwunyeung/32/68_2.png) [@kwunyeung](https://forum.cosmos.network/u/kwunyeung)\
**Post date:** [July 4, 2018, 10:55am UTC](https://forum.cosmos.network/t/sentry-nodes-what-they-are-how-they-work-why-they-exist/379/10 "2018-07-04T10:55:03Z")

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It should be able to be done with /dial\_peers endpoint via RPC. When a new sentry node has been spawned, a request is made to /dail\_peers of the validator node and add the listen address of the new sentry node.

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