Listing 2. options {} Listing

listen-on [port #] { list of
local interface IPs ; };
# Specifies which interface(s) to listen for DNS
# queries and zone- requests. This and all other
# address-lists enclosed in {} must be separated
# with semicolons.
# Listening-port is optional.

# allow-recursion { list of IP addr's/nets for 
# whom server will recurse ; };
# Perform recursive queries for specified IP-list,
# which can consist of the word "none;"

allow-transfer { list of IP addr's/nets who may
receive zone-transfers, or "none" ; };
# Specify which addresses and/or networks may
# receive zone-transfers should
# they ask for one

allow-update { IP/acl-list ; };
# Allow Dynamic DNS updates from these
# IPs/ACLs/nets (or "none")

allow-query IP/acl-list ; };
# Allow simple DNS queries from these IPs/ACLs/nets
(or"none")

version " [message to display in lieu of BIND's
version number]";
# There's no legitimate reason for anyone but network admin.s to know your
# BIND version-number. Some people use this
# parameter to respond to version-
# queries with bogus or humorous information.

recursion [yes | no];
#Turn recursion on or off globally. If off, set
# fetch-glue to "no" also (see below)

fetch-glue [yes | no];
#Related to recursion: glue records are RRs
# necessary for other RRs to make sense
#(e.g., any name pointed to by a "CNAME" record
# must have an "A" record somewhere)
#Normally glue records can be fetched in the
#course of normal queries, unless you disable
# it here.