네임서버 구동 스크립트 S72inetsvc

네임서버 구동 스크립트 S72inetsvc

$ cat /etc/rc2.d/S72inetsvc

#!/sbin/sh
#
# Copyright 2004 Sun Microsystems, Inc. All rights reserved.
# Use is subject to license terms.
#
#ident "@(#)inetsvc 1.31 04/03/16 SMI"
#
# This is third phase of TCP/IP startup/configuration. This script
# runs after the NIS/NIS+ startup script. We run things here that may
# depend on NIS/NIS+ maps.
#
case "$1" in
'start')
;; # Fall through -- rest of script is the initialization code
'stop')
/usr/bin/pkill -x -u 0 'in.named|inetd'
exit 0
;;
*)
echo "Usage: $0 { start | stop }"
exit 1
;;
esac
# If boot variables are not set, set variables we use
[ -z "$_INIT_UTS_NODENAME" ] && _INIT_UTS_NODENAME=`/usr/bin/uname -n`
if [ -z "$_INIT_PREV_LEVEL" ]; then
set -- `/usr/bin/who -r`
_INIT_PREV_LEVEL="$9"
fi
#
# wait_nis
# Wait up to 5 seconds for ypbind to obtain a binding.
#
wait_nis ()
{
for i in 1 2 3 4 5; do
server=`/usr/bin/ypwhich 2>/dev/null`
[ $? -eq 0 -a -n "$server" ] && return 0 || sleep 1
done
return 1
}
#
# We now need to reset the netmask and broadcast address for our network
# interfaces. Since this may result in a name service lookup, we want to
# now wait for NIS to come up if we previously started it.
#
domain=`/usr/bin/domainname 2>/dev/null`
[ -z "$domain" ] || [ ! -d /var/yp/binding/$domain ] || wait_nis || \
echo "WARNING: Timed out waiting for NIS to come up" >& 2
#
# Re-set the netmask and broadcast addr for all IP interfaces. This ifconfig
# is run here, after waiting for name services, so that "netmask +" will find
# the netmask if it lives in a NIS map. The 'D' in -auD tells ifconfig NOT to
# mess with the interface if it is under DHCP control
#
/usr/sbin/ifconfig -auD4 netmask + broadcast +
# Uncomment these lines to print complete network interface configuration
# echo "network interface configuration:"
# /usr/sbin/ifconfig -a
#
# If this machine is configured to be an Internet Domain Name System (DNS)
# server, run the name daemon. Start named prior to: route add net host,
# to avoid dns gethostbyname timout delay for nameserver during boot.
#
if [ -f /etc/named.conf ] && [ -f /usr/sbin/in.named ]; then
echo 'starting internet domain name server.'
# /usr/sbin/in.named &
/usr/sbin/dns.sh &
fi
if [ "$_INIT_NET_STRATEGY" = "dhcp" ]; then
dnsservers=`/sbin/dhcpinfo DNSserv`
else
dnsservers=""
fi
if [ -n "$dnsservers" ]; then
if [ -f /etc/resolv.conf ]; then
/usr/bin/rm -f /tmp/resolv.conf.$$
/usr/bin/sed -e '/^domain/d' -e '/^nameserver/d' \
/etc/resolv.conf >/tmp/resolv.conf.$$
fi
dnsdomain=`/sbin/dhcpinfo DNSdmain`
if [ -n "$dnsdomain" ]; then
echo "domain $dnsdomain" >>/tmp/resolv.conf.$$
fi
for name in $dnsservers; do
echo nameserver $name >>/tmp/resolv.conf.$$
done
#
# Warning: The umask is 000 during boot, which requires explicit
# setting of file permission modes when we create files.
#
/usr/bin/mv /tmp/resolv.conf.$$ /etc/resolv.conf
/usr/bin/chmod 644 /etc/resolv.conf
# Add dns to the nsswitch file, if it isn't already there.
/usr/bin/rm -f /tmp/nsswitch.conf.$$
/usr/bin/awk ' $1 ~ /^hosts:/ {
n = split($0, a);
newl = a[1];
if ($0 !~ /dns/) {
printf("#%s # Commented out by DHCP\n", $0);
updated = 0;
for (i = 2; i <= n; i++) {
if (updated == 0 && index(a[i], "[") == 1) {
newl = newl" dns";
updated++;
}
newl = newl" "a[i];
}
if (updated == 0) {
newl = newl" dns";
updated++;
}
if (updated != 0)
newl = newl" # Added by DHCP";
else
newl = $0;
printf("%s\n", newl);
} else
printf("%s\n", $0);
} $1 !~ /^hosts:/ { printf("%s\n", $0); }' /etc/nsswitch.conf \
>/tmp/nsswitch.conf.$$
/usr/bin/mv /tmp/nsswitch.conf.$$ /etc/nsswitch.conf
/usr/bin/chmod 644 /etc/nsswitch.conf
elif grep '# Added by DHCP$' /etc/nsswitch.conf >/dev/null 2>&1; then
# If we added DNS to a hosts line in the nsswitch, remove it.
/usr/bin/rm -f /tmp/nsswitch.conf.$$
/usr/bin/sed \
-e '/# Added by DHCP$/d' \
-e 's/^\(#hosts:\)\(.*[^#]\)\(#.*\)$/hosts: \2/' \
/etc/nsswitch.conf >/tmp/nsswitch.conf.$$
/usr/bin/mv /tmp/nsswitch.conf.$$ /etc/nsswitch.conf
/usr/bin/chmod 644 /etc/nsswitch.conf
fi
if [ "$_INIT_NET_STRATEGY" = "dhcp" ]; then
hostname=`/usr/bin/uname -n`
ipaddr=`/sbin/dhcpinfo Yiaddr`
/usr/bin/rm -f /tmp/hosts.$$ /tmp/hosts_clear.$$
# Delete any old lines added by dhcp.
/usr/bin/sed -e '/# Added by DHCP$/d' /etc/inet/hosts \
> /tmp/hosts_clear.$$
shift $# # Clear $0-9 first in case grep fails
set -- `/usr/bin/grep "^[ ]*$ipaddr[ ]" \
/tmp/hosts_clear.$$ 2>/dev/null`
if [ $# -gt 0 ]; then
#
# IP address is already in the hosts file. Ensure the
# associated hostname is the same as the Hostname
# property returned by the DHCP server.
#
/usr/bin/sed -e "/^[ ]*${ipaddr}[ ]/s/${2}/${hostname}/" \
/tmp/hosts_clear.$$ >/tmp/hosts.$$
else
#
# IP address is missing from the hosts file. Now check
# to see if the hostname is present with a different IP.
#
shift $# # Clear $0-9 in case grep fails
set -- `/usr/bin/grep -s -v '^#' /tmp/hosts_clear.$$ | \
/usr/bin/egrep "[ ]${hostname}([ ]|$)"`
if [ $# -gt 0 ]; then
#
# Hostname is present in the hosts file. Rewrite this
# line to have the new IP address and the DHCP comment.
#
/usr/bin/sed -e "/^[ ]*${1}[ ]/d" \
/tmp/hosts_clear.$$ >/tmp/hosts.$$
shift # Shift off $1 (the old IP)
echo "$ipaddr $*\c" | /usr/bin/tr ' ' '\t' \
>>/tmp/hosts.$$
echo "\t# Added by DHCP" >>/tmp/hosts.$$
else
#
# Hostname is not present in the hosts file.
# Add a new line for the host at the end of
# the new hosts file.
#
/usr/bin/mv /tmp/hosts_clear.$$ /tmp/hosts.$$
echo "${ipaddr}\t${hostname}\t# Added by DHCP" \
>>/tmp/hosts.$$
fi
fi
# Update loopback transport hosts files
for inet in /etc/net/*/hosts; do
echo "# RPC hosts" > $inet
echo "$hostname\t$hostname" >> $inet
/usr/bin/chmod 644 $inet
done
/usr/bin/rm -f /tmp/hosts_clear.$$
/usr/bin/mv /tmp/hosts.$$ /etc/inet/hosts
/usr/bin/chmod 644 /etc/inet/hosts
fi
#
# Load the IPQoS configuration.
# This is backgrounded so that any remote hostname lookups it performs
# don't unduely delay startup. Any messages go via syslog.
#
if [ -f /usr/sbin/ipqosconf -a -f /etc/inet/ipqosinit.conf ]; then
/usr/sbin/ipqosconf -s -a /etc/inet/ipqosinit.conf &
fi
#
# Add a static route for multicast packets out our default interface.
# The default interface is the interface that corresponds to the node name.
# Run in background subshell to avoid waiting for name service.
#
(
if [ "$_INIT_NET_STRATEGY" = "dhcp" ]; then
mcastif=`/sbin/dhcpinfo Yiaddr` || mcastif=$_INIT_UTS_NODENAME
else
mcastif=$_INIT_UTS_NODENAME
fi
echo "Setting default IPv4 interface for multicast:" \
"add net 224.0/4: gateway $mcastif"
/usr/sbin/route -n add -interface 224.0/4 -gateway "$mcastif" >/dev/null
) &
#
# Remove the _INIT_ environment variables before running inetd.
#
unset `env | sed -n 's/^\(_INIT_.*\)=.*/\1/p'`
#
# Run inetd in "standalone" mode (-s flag) so that it doesn't have
# to submit to the will of SAF. Why did we ever let them change inetd?
#
/usr/sbin/inetd -s