Configuring and Managing MPE/iX Internet Services (MPE/iX 6.5)
Appendix C 213
BIND 8.1 Enhanced Features
BIND 8 Highlights
specified, the default is “named.stats”.
Boolean Options auth-nxdomain If yes, then the AA bit is always set on
NXDOMAIN responses, even if the server
is not actually authoritative. The
default is yes. Do not turn off
auth-nxdomain unless you are sure
you know what you are doing, as some
older software won’t like it.
deallocate-on-exit If yes, then when the server exits it
will painstakingly deallocate every
object it allocated, and then write a
memory usage report to the
memstatistics-file. The default is
no, because it is faster to let the
operating system clean up.
deallocate-on-exit is handy for
detecting memory leaks.
fake-iquery If yes, the server will simulate the
obsolete DNS query type IQUERY. The
default is no.
fetch-glue If yes (the default), the server will fetch
“glue” resource records it doesn’t have
when constructing the additional data
section of a response. fetch-glue no
can be used in conjunction with
recursion no to prevent the server’s
cache from growing or becoming
corrupted (at the cost of requiring more
work from the client).
host-statistics If yes, then statistics are kept for every
host that the nameserver interacts
with. The default is no.
NOTE Turning on host-statistics can consume huge amounts of memory.
multiple-cnames If yes, then multiple CNAME resource
records will be allowed for a domain
name. The default is no. Allowing
multiple CNAME records is against
standards and is not recommended.
Multiple CNAME support is available
because previous versions of BIND
allowed multiple CNAME records, and
these records have been used for load
balancing by a number of sites.