---
name: "jailer.conf"
section: "5"
platform: "linux"
package: "jailer"
version: "0.4-17"
release: "Debian 8 (Jessie)"
platforms: ["linux"]
url: "https://new.carta.tech/jailer.conf"
---

# jailer.conf(5)

configuration file of jailer

## NAME

jailer.conf - configuration file of jailer

## SYNOPSIS

jailer.conf

## DESCRIPTION

*jailer* is a script for creating chrooted environments for Debian packages.

*jailer.conf* is the configuration file for jailer.conf

Every configuration definition has to start and end with a jail identifier, which should be *unique* and *be in brackets.*

- **\<apache\>**

  For example, an Apache chroot identifier should look like this:

- **\</apache\>**

  The identifier use needs to be closed.

  The configuration for the chroot instance is defined inside  these identifiers. The following lines can be used to describe the configuration:

- **Root: /var/chroot/apache**

  This line describes the **PATH** of the chrooted enviroment.

- **Conf:**

  This line describes the **PATH** or **PATH/filename** which should be copied over to the chrooted environment. For example **Conf: /etc/apache/\*** , which uses a wild card.

- **Debs:**

  This line contains the name of those Debian packages which should be installed into the chrooted environment.

- **Junk-Debs:**

  This line contains those **deb** packages which should not be installed into the chrooted environment.

- **Junk:**

  This line contains those **files** or **directories** which should not be installed. For example **/lib/\*** means all files and links under /lib should not be installed, while **/lib/libconsole.so.0.0.0** means a file which should not to be installed.

- **Extra:**

  This line contains those files or directories which should  be installed into the chrooted environment. For example:  **/var/run** will install that a directory which is needed for the chrooted service.

## WARNING

Do not configure your daemon inside your jail, because *updatejail* script will wipe out all the data inside the jail. If you would want to change any settings inside the jail, make the changes in the original location and then run *updatejail* . This makes it possible to place a jail even to a ramdisk.

## SEE ALSO

[updatejail(8)](/updatejail/8.md) [jailer.conf(5)](/jailer.conf/5.md), [dpkg(8)](/dpkg/8.md)

## AUTHOR

This manual page was written by Péter Höltzl \<peter.holtzl@balabit.hu\>.