named support files moving

["Todd C. Miller" <Todd.Miller@courtesan.com>]

The named support files have moved from /etc/namedb to /var/named
(this includes named.boot as well).  This was done to make running
named in a chroot'd jail simple.  With the new setup, running named
chroot'd and as a non-root user (the new "named" user, uid 70) is
as simple as:
    named -u named -t /var/named

Where a chroot'd /var/named looks something like this:
    xerxes [~] % ls -l /var/named
    drwxr-xr-x  2 root   bin     512 May 23 13:32 dev/
    -r-xr-xr-x  1 root   bin  139264 May 23 10:19 named-xfer*
    -rw-r--r--  1 root   bin     602 Aug 14  1996 named.boot
    -rw-r--r--  1 root   bin      35 May 23 12:47 named.pid
    -rw-r--r--  1 root   bin    2769 Aug 24  1997 root.cache
    -rw-r--r--  1 root   bin     256 Dec 31 20:36 localhost.rev

named-xfer is now a static binary so it can run in the chroot'd
jail and the dev directory is for a syslog ``log'' socket.  If you
run syslogd as "syslogd -a /var/named/dev/log" it will create
an extra socket in /var/named/dev so named can still syslog.

In addition, named now scribbles its argument vector in the second
line of its pid file (similar to what sendmail does).  This was done
so that the ndc command can restart named with the correct arguments
even if the kernel has changed.

 - todd