B10-ZONEMGR(8)

NAME
b10-zonemgr - BIND 10 Secondary zone manager

SYNOPSIS

b10-zonemgr [-v] [--verbose]

DESCRIPTION

The b10-zonemgr daemon, also known as the BIND 10 secondary manager, keeps track of timers and other information necessary for BIND 10 to act as a DNS slave. Normally it is started by the bind10(8) boss process.

This daemon communicates with BIND 10 over a b10-msgq(8) C-Channel connection. If this connection is not established, b10-zonemgr will exit.

b10-zonemgr receives its configurations from b10-cfgmgr(8).

CONFIGURATION AND COMMANDS

The configurable settings are:

jitter_scope defines the random jitter range subtracted from the refresh and retry timers to avoid many zones from refreshing at the same time. The refresh or retry time actually used is a random time between the defined refresh or retry time and it multiplied by the jitter_scope. This is re-evaluated after each refresh or retry. This value is a real number and the maximum is 0.5 (half of the refresh or retry time). The default is 0.25. Set to 0 to disable the jitter.

lowerbound_refresh defines the minimum SOA REFRESH time in seconds. The default is 10.

lowerbound_retry defines the minimum SOA RETRY time in seconds. The default is 5.

max_transfer_timeout defines the maximum amount of time in seconds for a transfer. The default is 14400 (4 hours).

The configuration commands are:

notify (sent by b10-auth(8)) tells b10-zonemgr the zone name and class, and the IP address for the master (source of the NOTIFY message). This will set the zone's refresh time to now. This is an internal command and not exposed to the administrator.

shutdown exits b10-zonemgr. (Note that the BIND 10 boss process will restart this service.)

zone_new_data_ready is sent from b10-xfrin(8) to indicate that the zone transferred in successfully. This is an internal command and not exposed to the administrator.

zone_xfrin_failed is sent from b10-xfrin(8) to indicate a failure (such as a transfer-in was incomplete). The refresh timer for the zone is reset. This is an internal command and not exposed to the administrator.

SEE ALSO

b10-auth(8), b10-cfgmgr(8), b10-msgq(8), b10-xfrin(8), b10-xfrout(8), bind10(8), BIND 10 Guide.

HISTORY

The b10-zonemgr daemon was designed in July 2010 by CNNIC for the ISC BIND 10 project.

COPYRIGHT
Copyright © 2010 Internet Systems Consortium, Inc. ("ISC")