NAME

ThisCell - Defines the local cell name

DESCRIPTION

The ThisCell file defines the local cell name. There are two versions of this file, one for a AFS client and one for an AFS server.

Client ThisCell

The client version of the ThisCell file defines the complete Internet domain-style name (for example, abc.com) of the cell to which the local client machine belongs. It must reside in the /usr/vice/etc directory on every AFS client machine. To change a client machine's cell membership, edit the file and reboot the machine.

The file is in ASCII format and contains a character string on a single line. The OpenAFS Quick Start Guide instructs the administrator to create it during the installation of each client machine.

The client machine's cell membership determines three defaults important to its functioning:

The client version of the ThisCell file is distinct from the server version, which resides in the /usr/afs/etc directory on each AFS server machine. If a server machine also runs as a client, it is acceptable for the server and client versions of the file on the same machine to name different cells. However, the behavior that results from this configuration can be more confusing than useful.

Server ThisCell

The server version of the ThisCell file defines the complete Internet domain-style name (for example, abc.com) of the cell to which the server machine belongs. It must reside in the /usr/afs/etc directory on every AFS server machine.

The file is in ASCII format and contains a character string on a single line. The initial version of the file is created with the bos setcellname command during the installation of the cell's first file server machine, and the OpenAFS Quick Start Guide includes instructions for copying it over to additional server machine during their installation.

The only reason to edit the file is as part of changing the cell's name, which is strongly discouraged because of the large number of configuration changes involved. In particular, changing the cell name requires rebuilding the entire Authentication Database, because the Authentication Server combines the cell name it finds in this file with each user and server password and converts the combination into an encryption key before recording it in the Database.

SEE ALSO

bos_setcellname(8), fs_getcellstatus(1), fs_setcell(1)

COPYRIGHT

IBM Corporation 2000. <http://www.ibm.com/> All Rights Reserved.

This documentation is covered by the IBM Public License Version 1.0. It was converted from HTML to POD by software written by Chas Williams and Russ Allbery, based on work by Alf Wachsmann and Elizabeth Cassell.