Distributed Name Service (DNS) Management Operations Manual

Working With Different DNS Configurations
Using DNSCOM
31258 Tandem Computers Incorporated 6–7
Initial OPEN With a Default
Configuration File
If DNSCOM cannot find a definition for the =_DNS_CONFIG parameter, that is, one is
not present, the initial DNSCOM open remains as described previously in “Specifying
a System Name and Configuration File” earlier in this section.
If a configuration file is specified for the =_DNS_CONFIG parameter and the
associated configuration file is in local format, DNSCOM attempts to open the current
manager name on a system determined as in “Specifying a System Name and
Configuration File.”
If =_DNS_CONFIG is defined and the associated configuration file is in network
format, DNSCOM attempts to open the current name manager on the system specified
in the file’s name. This allows changing the default configuration for one system to
actually run on another system. For example, if the following =_DNS_CONFIG is
present at system \A:
ADD DEFINE =_DNS_CONFIG, FILE \B.$SYSTEM.DNS.CONFIG
Then when DNSCOM is executed at \A, it opens the name manager on \B. By placing
the above ADD DEFINE command in the TACLLOCL file on \A, all users at \A
would have their default DNS configuration changed. By placing the above ADD
DEFINE command in the user’s TACLCSTM file, an individual user may change his
default configuration.
In the following example, DNS attempts to open the default name manager process on
system XXX. Your input appears in boldface type, and DNSCOM output appears in
normal type.
INFO DEFINE **
Define Name =_DEFAULTS
class DEFAULTS
volume $FALL.MYDNS
SYSTEM
DNSCOM
DNSCOM - T9635D00 (15DEC91) SYSTEM \XXX
COPYRIGHT TANDEM COMPUTERS INCORPORATED 1987, 1991
Current Configuration File is $SYSTEM.SYSTEM.DNSCONF
In the following example, DNS attempts to open the process name specified by
DNS-MANAGER PROCESSNAME in \XYZ.$FALL.MYDNS.DNSCONF:
ADD DEFINE =_DNS_CONFIG, FILE DNSCONF
DNSCOM
DNSCOM - T9635D00 (15DEC91) SYSTEM \XYZ
COPYRIGHT TANDEM COMPUTERS INCORPORATED 1987, 1991
Current Configuration File is $FALL.MYDNS.DNSCONF