OpenBSD-4.6/usr.sbin/bind/README.OpenBSD
$OpenBSD: README.OpenBSD,v 1.9 2008/02/29 12:21:10 deraadt Exp $
additional features
- write pid-file before chroot
- privilege separation for binding to privileged ports from within chroot
- add 64K entry shuffle (somewhat like Fisher-Yates) implementation to libisc
- use shuffle instead of LFSR for ID generation
- strlcpy/strlcat/snprintf fixes
default parameter changes
- chroot to /var/named by default
- setuid to user named by default
- listen to IPv6 interfaces by default