BIND 8.1.2 Release Notes

New and Changed Features
New Features
Chapter 124
The default value is 2. Increasing the value of transfers-per-ns not
only speeds up the convergence of slave zones, but also increases the load
on the remote nameserver. You can override the transfers-per-ns
option on a per-server basis using the transfers phrase of the server
statement.
Resource Limits Options
You canlimit the server’s usage of the system resources. If a specific limit
is not supported on a given operating system, a warning is issued.
You can use scaled values to specify resource limits. For example, 1G can
be used instead of 1073741824 to specify a limit of one gigabyte.
Specifying unlimited specifies unlimited usage, or the maximum
available amount. default specifies the limit that was in effect when the
server was started.
Following are the different types of size_specs:
• coresize size_spec;
Specifies the maximum size of a core dump. The default value is
default.
• datasize size_spec;
Specifies the maximum amount of data memory the server uses. The
default value is default.
• files size_spec;
Specifies the maximum number of files the server can open
concurrently. The default value is unlimited. Note that, the server
cannot set an unlimited value for certain operating systems and
cannot determine the maximum number of open files the kernel can
support. On such systems, specifying unlimited causes the server to
use the rlim_max for RLIMIT_NOFILE or the value returned by
sysconf(_SC_OPEN_MAX), depending on which contains the highest
value. If the actual kernel limit is larger than this value, use limit
files to specify the limit explicitly.
• stacksize size_spec;
Specifies the maximum amount of stack memory the server can use.
The default value is default.
Periodic Task Intervals Options