Configuring and Managing MPE/iX Internet Services (MPE/iX 6.0)

170 Appendix C
BIND 8.1 Enhanced Features
BIND 8 Highlights
pid-file The pathname of the file the server writes its process
ID in. If not specified, the default is operating system
dependent, but is usually “/var/run/named.pid” or
“/etc/named.pid”. The pid-file is used by programs
like “ndc” that want to send signals to the running
nameserver.
statistics-
file The pathname of the file the server appends statistics
to when it receives SIGILL signal (ndc stats). If not
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