This file is indexed.

postinst is in krb5-kdc 1.12+dfsg-2ubuntu4.

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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#! /bin/sh

set -e

if [ "configure" = "$1" ] || [ "reconfigure" = "$1" ] ; then
    . /usr/share/debconf/confmodule
    db_version 2.0

    db_get krb5-config/default_realm || true
    KRB5LD_DEFAULT_REALM="$RET"
    if [ -z "$KRB5LD_DEFAULT_REALM" ] ; then
        KRB5LD_DEFAULT_REALM=EXAMPLE.COM
    fi
    export KRB5LD_DEFAULT_REALM

    db_get krb5-kdc/debconf
    DEBCONF="$RET"

    if [ ! -f /etc/krb5kdc/kdc.conf ] && [ $DEBCONF = "true" ] ; then
        sed -e "s/@MYREALM/$KRB5LD_DEFAULT_REALM/" \
            /usr/share/krb5-kdc/kdc.conf.template > /etc/krb5kdc/kdc.conf
    fi

    if [ $DEBCONF = "true" ] ; then
        if [ -f "/etc/default/krb5-kdc" ] ; then
            . /etc/default/krb5-kdc
        fi
        cat <<'EOF' > /etc/default/krb5-kdc

# Automatically generated.  Only the value of DAEMON_ARGS will be preserved.
# If you change anything in this file other than DAEMON_ARGS, first run
# dpkg-reconfigure krb5-kdc and disable managing the KDC configuration with
# debconf.  Otherwise, changes will be overwritten.

EOF
        if [ -n "$DAEMON_ARGS" ] ; then
            echo "DAEMON_ARGS=\"$DAEMON_ARGS\"" >> /etc/default/krb5-kdc
        fi
    fi

    db_stop
fi

# Only try to add the inetd line on an initial installation.  Add it
# commented out in a way that will not be automatically enabled, since the
# Kerberos administrator should do that manually when ready.
#
# If update-inetd isn't available, don't bother, since it's just an example.
if [ "configure" = "$1" ] && which update-inetd >/dev/null 2>&1 ; then
    if [ -z "$2" ] || [ x"$2" = x"<unknown>" ] ; then
        update-inetd --add --group Kerberos \
            '#krb5_prop\tstream\ttcp\tnowait\troot\t/usr/sbin/kpropd kpropd'
    fi
fi

# Automatically added by dh_installinit
if [ -x "/etc/init.d/krb5-kdc" ] || [ -e "/etc/init/krb5-kdc.conf" ]; then
	if [ ! -e "/etc/init/krb5-kdc.conf" ]; then
		update-rc.d krb5-kdc defaults 18 18 >/dev/null
	fi
	invoke-rc.d krb5-kdc start || exit $?
fi
# End automatically added section


exit 0