---
name: "bos_setrestricted"
section: "8"
platform: "linux"
package: "openafs-client"
version: "1.8.13.2-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/bos_setrestricted"
---

# bos\_setrestricted(8)

place a server in restricted mode

## NAME

bos\_setrestricted - place a server in restricted mode

## SYNOPSIS

**bos setrestricted** **-server** \<*machine name*\> **-mode** (0 \| 1)\
     \[**-cell** \<*cell name*\>\] \[**-noauth**\] \[**-localauth**\] \[**-help**\]

## DESCRIPTION

The **bos setrestricted** command places the server in restricted mode. This mode increases the security of the bos server by removing access to a number of bos commands that are only used whilst configuring a system.

When a server is in restricted mode, access to **bos\_exec**, **bos uninstall**, **bos install**, **bos create**, **bos delete**, **bos prune** is denied, and the use of **bos getlog** is limited.

## CAUTIONS

Once a server has been placed in restricted mode, it may not be opened up again using a remote command. That is, **bos setrestricted** has no method of placing the server in unrestricted mode. Once a server is restricted, it can only be opened up again by sending it a SIGFPE, which must be done as root on the local machine.

## OPTIONS

- **-server** \<*machine name*\>

  Indicates the server machine to restrict.

- **-mode** \<*mode*\>

  Indicates whether to turn restricted mode off or on. Pass a 1 to turn restricted mode on, and pass a 0 to turn restricted mode off. The latter will only work if the server is already running in unrestricted mode, and thus won't do anything immediately, but can be used to change the corresponding entry in [**BosConfig**(5)](/BosConfig/5.md).

- **-cell** \<*cell name*\>

  Names the cell in which to run the command. Do not combine this argument with the **-localauth** flag. For more details, see [**bos**(8)](/bos/8.md).

- **-noauth**

  Assigns the unprivileged identity `"anonymous"` to the issuer. Do not combine this flag with the **-localauth** flag. For more details, see [**bos**(8)](/bos/8.md).

- **-localauth**

  Constructs a server ticket using a key from the local */etc/openafs/server/KeyFile* file. The **bos** command interpreter presents the ticket to the BOS Server during mutual authentication. Do not combine this flag with the **-cell** or **-noauth** options. For more details, see [**bos**(8)](/bos/8.md).

- **-help**

  Prints the online help for this command. All other valid options are ignored.

## PRIVILEGE REQUIRED

The issuer must be listed in the */etc/openafs/server/UserList* file on the machine named by the **-server** argument, or must be logged in as the local superuser `"root"` if the **-localauth** flag is included.

As noted above, this command cannot be run against servers which are already in restricted mode.

## SEE ALSO

[**BosConfig**(5)](/BosConfig/5.md), [**bos**(8)](/bos/8.md), [**bos\_getrestricted**(8)](/bos_getrestricted/8.md)

## COPYRIGHT

Copyright 2009 Simon Wilkinson \<simon@sxw.org.uk\>

This documentation is covered by the BSD License as written in the doc/LICENSE file. This man page was written by Simon Wilkinson for OpenAFS.