---
title: "Connecting to NIS"
slug: "connecting-to-nis"
tags: ["5.4"]
updated: 2026-10-28T01:54:03Z
published: 2026-10-28T01:54:03Z
canonical: "docs.vastdata.com/connecting-to-nis"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.vastdata.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Connecting to NIS

Network Information Service (NIS) is supported as an authorization provider for NFS exports.

When NIS is configured, for views that are exposed to NFS and have the *Group Membership Source* setting in the view policy set to *Providers* or *Client and Providers*:

- NIS is used to authorize user access to file and directories.
- NIS netgroups can be used to authorize NFS client hosts' access to files and directories.

See the following topics for details:

- [Configuring NIS in VAST Web UI](/docs-5-4/docs/en/configuring-nis-in-vast-web-ui)Configuring NIS via VAST Web UI
- [Configuring NIS in VAST CLI](/docs-5-4/docs/en/configuring-nis-in-vast-cli)Configuring NIS via VAST CLI
- [Refreshing the NIS Cache](/docs-5-4/docs/en/refreshing-the-nis-cache)Refreshing the NIS Cache
- [Using NIS Netgroups to Authorize Hosts](/docs-5-4/docs/en/using-nis-netgroups-to-authorize-hosts)Using NIS Netgroups to Authorize Hosts