Notes on Cell Administration

Establishing Intercell Communication

In some cases it may be sufficient to point GDA at a name server that serves the zone containing cell names, and obtain hostname A (Address) records from that server’s cache data. If the name server is frequently used to look up hostnames, it is likely that A records for “popular” hosts will be in cache. However, it is generally unwise to rely on a particular resource record being found in cache — this is not a recommended or supported configuration.

 

Creating DNS Resource Records for a DCE

 

Cell

 

Each cell that is to be accessed via GDA must have certain information

 

about the cell’s CDS server(s) stored in DNS. DNS is a distributed,

 

hierarchical database that stores information as one or more “resource

 

records” associated with a particular domain name. The DNS resource

 

records are added to the DNS database, and make the cell visible to

 

GDA.

 

Creating and maintaining DNS databases is a complex task that is

NOTE

 

beyond the scope of this document. The DNS resource record(s) for your

 

cell must be added to the DNS database by your local DNS

 

administrator, or by a person familiar with DNS and named.

 

The example in this section uses “absolute” (dot terminated) domain

 

 

names. This syntax, although verbose, always works. DNS also allows

 

names to be specified relative to the “current domain,” which is

 

context-dependent. Contact your DNS administrator before using

 

relative names.

 

To establish a DNS resource record for a cell, do the following:

 

1. dce_login as the cell administrator for the cell you want to create

 

records for:

 

dce_login cell_admin cell_admin_passwd

 

2. Run the cdscp show cell command. For example:

 

cdscp show cell /…/cell.xyz.com as dns

 

SHOW

 

CELL /…/cell.xyz.com

 

AT 1993-01-15-17:15:15 TXT 1 EE527190-F153-11CB-9CE3-

 

00000912C483 \

 

Master /…/cell.xyz.com/hostname_ch \

 

ECF7E0FA-F153-11CB-9CE3-00000912C483

Planning and Configuring HP DCE 1.7

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