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Configuring Jail
Overview of the installation process

Published at 26/08/2003 17:10:48
By Juan M. Casillas

Jail is launched as a login shell for any of the servers that allows access to the machine from the net, e.g. sshd, telnetd, ftpd, etc. So Jail is the shell of the chrooted users. To build a chrooted user, four steps are required:

  • Build user?s passwd entries in the non-chrooted environment.
  • Setup chrooted environment.
  • Add the software to the chrooted environment.
  • Add the users to the chrooted environment.

The first one is required to allow the user launch jail when a login process is invoked. The second, three and four steps are required to built the chrooted enviroment (create the required directories, copying the library and binary files, changing chrooted /etc/passwd file, and so on).

So these are the required steps in order to setup jail:

  1. Setup Entries
  2. Create directories
  3. Adding users
  4. Adding software

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