---
name: "nfsrevoke"
section: "8"
platform: "freebsd"
package: "base"
version: "16.0-CURRENT-20261027-61c70dc16a79"
release: "FreeBSD 16.0-CURRENT (2026-10-27)"
platforms: ["freebsd"]
url: "https://new.carta.tech/nfsrevoke"
---

# nfsrevoke(8)

revoke NFS V4 client

## NAME

**nfsrevoke** – revoke NFS V4 client

## SYNOPSIS

**nfsrevoke** *ClientId*

## DESCRIPTION

**nfsrevoke** This command is used by a system administrator to revoke a client's access to the NFS Version 4 server. All Open/Lock state held by the client will be released. After revocation, the client will no longer be able to use state on the server until it does a fresh SetClientID/SetClientIDConfirm operations sequence. THIS SHOULD BE DONE AS A LAST RESORT ONLY, when clients are holding state that must be released on the server.

The *ClientId* argument is a hexadecimal string, which is the last field of the [nfsdumpstate(8)](/nfsdumpstate/8.md) command's **-o** and **-l** options output.

## SEE ALSO

[nfsv4(4)](/nfsv4/4.md), [nfsdumpstate(8)](/nfsdumpstate/8.md)

## HISTORY

The **nfsrevoke** command was introduced as a part of the experimental nfs server subsystem.