postinst is in isc-dhcp-server 4.3.5-3ubuntu7.
This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.
The actual contents of the file can be viewed below.
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#
# Inspiration stolen from the fetchmail* packages. Thanks Henrique!
#
#
set -e
case "$1" in
configure)
# create system dhcpd user and group
adduser --system --quiet --no-create-home --home /var/run --group dhcpd
# create ddns keys directory
if [ ! -e /etc/dhcp/ddns-keys/ ]; then
mkdir -m 750 /etc/dhcp/ddns-keys/
chown root:dhcpd /etc/dhcp/ddns-keys/
fi
;;
abort-upgrade|abort-remove|abort-deconfigure)
exit 0
;;
*)
echo "postinst called with unknown argument \`$1'" >&2
exit 0
;;
esac
# Handle debconf
. /usr/share/debconf/confmodule
INITCONFFILE="/etc/default/isc-dhcp-server"
# We generate several files during the postinst, and we don't want
# them to be readable only by root.
umask 022
# Generate configuration file if it does not exist, using default values.
[ -r "${INITCONFFILE}" ] || {
echo Generating ${INITCONFFILE}... >&2
cat >${INITCONFFILE} <<'EOFMAGICNUMBER1234'
# Defaults for isc-dhcp-server (sourced by /etc/init.d/isc-dhcp-server)
# Path to dhcpd's config file (default: /etc/dhcp/dhcpd.conf).
#DHCPDv4_CONF=/etc/dhcp/dhcpd.conf
#DHCPDv6_CONF=/etc/dhcp/dhcpd6.conf
# Path to dhcpd's PID file (default: /var/run/dhcpd.pid).
#DHCPDv4_PID=/var/run/dhcpd.pid
#DHCPDv6_PID=/var/run/dhcpd6.pid
# Additional options to start dhcpd with.
# Don't use options -cf or -pf here; use DHCPD_CONF/ DHCPD_PID instead
#OPTIONS=""
# On what interfaces should the DHCP server (dhcpd) serve DHCP requests?
# Separate multiple interfaces with spaces, e.g. "eth0 eth1".
INTERFACESv4=""
INTERFACESv6=""
EOFMAGICNUMBER1234
}
# ------------------------- Debconf questions start ---------------------
db_get isc-dhcp-server/interfaces || true
INTERFACESv4="${RET}"
if [ -n "$INTERFACESv4" ]; then
TMPFILE="$(mktemp -q ${INITCONFFILE}.new.XXXXXX)"
sed -e "s,^[[:space:]]*INTERFACESv4[[:space:]]*=.*,INTERFACESv4=\"${INTERFACESv4}\"," \
<${INITCONFFILE} >${TMPFILE}
cp ${TMPFILE} ${INITCONFFILE}
rm ${TMPFILE}
fi
# ------------------------- Debconf questions end ---------------------
db_stop
test ! -x /sbin/restorecon || restorecon /var/lib/dhcp/dhcpd.leases
# Automatically added by dh_apparmor/2.12-4ubuntu4
aa_is_enabled() {
if command aa-enabled >/dev/null 2>&1; then
# apparmor >= 2.10.95-2
aa-enabled --quiet 2>/dev/null
else
# apparmor << 2.10.95-2
# (This should be removed once Debian Stretch and Ubuntu 18.04 are out.)
rc=0
aa-status --enabled 2>/dev/null || rc=$?
[ "$rc" = 0 ] || [ "$rc" = 2 ]
fi
}
if [ "$1" = "configure" ]; then
APP_PROFILE="/etc/apparmor.d/usr.sbin.dhcpd"
if [ -f "$APP_PROFILE" ]; then
# Add the local/ include
LOCAL_APP_PROFILE="/etc/apparmor.d/local/usr.sbin.dhcpd"
test -e "$LOCAL_APP_PROFILE" || {
mkdir -p `dirname "$LOCAL_APP_PROFILE"`
install --mode 644 /dev/null "$LOCAL_APP_PROFILE"
}
# Reload the profile, including any abstraction updates
if aa_is_enabled; then
apparmor_parser -r -T -W "$APP_PROFILE" || true
fi
fi
fi
# End automatically added section
# Automatically added by dh_systemd_enable/11.1.6ubuntu1
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
# This will only remove masks created by d-s-h on package removal.
deb-systemd-helper unmask 'isc-dhcp-server.service' >/dev/null || true
# was-enabled defaults to true, so new installations run enable.
if deb-systemd-helper --quiet was-enabled 'isc-dhcp-server.service'; then
# Enables the unit on first installation, creates new
# symlinks on upgrades if the unit file has changed.
deb-systemd-helper enable 'isc-dhcp-server.service' >/dev/null || true
else
# Update the statefile to add new symlinks (if any), which need to be
# cleaned up on purge. Also remove old symlinks.
deb-systemd-helper update-state 'isc-dhcp-server.service' >/dev/null || true
fi
fi
# End automatically added section
# Automatically added by dh_systemd_enable/11.1.6ubuntu1
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
# This will only remove masks created by d-s-h on package removal.
deb-systemd-helper unmask 'isc-dhcp-server.service' >/dev/null || true
# was-enabled defaults to true, so new installations run enable.
if deb-systemd-helper --quiet was-enabled 'isc-dhcp-server.service'; then
# Enables the unit on first installation, creates new
# symlinks on upgrades if the unit file has changed.
deb-systemd-helper enable 'isc-dhcp-server.service' >/dev/null || true
else
# Update the statefile to add new symlinks (if any), which need to be
# cleaned up on purge. Also remove old symlinks.
deb-systemd-helper update-state 'isc-dhcp-server.service' >/dev/null || true
fi
fi
# End automatically added section
# Automatically added by dh_systemd_enable/11.1.6ubuntu1
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
# This will only remove masks created by d-s-h on package removal.
deb-systemd-helper unmask 'isc-dhcp-server6.service' >/dev/null || true
# was-enabled defaults to true, so new installations run enable.
if deb-systemd-helper --quiet was-enabled 'isc-dhcp-server6.service'; then
# Enables the unit on first installation, creates new
# symlinks on upgrades if the unit file has changed.
deb-systemd-helper enable 'isc-dhcp-server6.service' >/dev/null || true
else
# Update the statefile to add new symlinks (if any), which need to be
# cleaned up on purge. Also remove old symlinks.
deb-systemd-helper update-state 'isc-dhcp-server6.service' >/dev/null || true
fi
fi
# End automatically added section
# Automatically added by dh_systemd_start/11.1.6ubuntu1
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
if [ -d /run/systemd/system ]; then
systemctl --system daemon-reload >/dev/null || true
deb-systemd-invoke start 'isc-dhcp-server6.service' >/dev/null || true
fi
fi
# End automatically added section
# Automatically added by dh_installdeb/11.1.6ubuntu1
dpkg-maintscript-helper rm_conffile /etc/init/isc-dhcp-server6.conf 4.3.5-3ubuntu1~ -- "$@"
# End automatically added section
# Automatically added by dh_installdeb/11.1.6ubuntu1
dpkg-maintscript-helper rm_conffile /etc/init/isc-dhcp-server.conf 4.3.5-3ubuntu1~ -- "$@"
# End automatically added section
# Automatically added by dh_installinit/11.1.6ubuntu1
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
if [ -x "/etc/init.d/isc-dhcp-server" ]; then
update-rc.d isc-dhcp-server defaults >/dev/null
invoke-rc.d isc-dhcp-server start || exit 1
fi
fi
# End automatically added section
# Automatically added by dh_installinit/11.1.6ubuntu1
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
if [ -x "/etc/init.d/isc-dhcp-server6" ]; then
update-rc.d isc-dhcp-server6 defaults >/dev/null
invoke-rc.d isc-dhcp-server6 start || exit 1
fi
fi
# End automatically added section
exit 0
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