website/content/en/docs/reference/glossary/kube-proxy.md

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---
title: kube-proxy
id: kube-proxy
date: 2018-04-12
full_link: /docs/reference/command-line-tools-reference/kube-proxy/
short_description: >
`kube-proxy` is a network proxy that runs on each node in the cluster.
aka:
tags:
- fundamental
- networking
---
[kube-proxy](/docs/reference/command-line-tools-reference/kube-proxy/) is a
network proxy that runs on each node in your cluster, implementing part of
the Kubernetes {{< glossary_tooltip term_id="service">}} concept.
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kube-proxy maintains network rules on nodes. These network rules allow
network communication to your Pods from network sessions inside or outside
of your cluster.
kube-proxy uses the operating system packet filtering layer if there is one
and it's available. Otherwise, kube-proxy forwards the traffic itself.