#!/bin/bash

if ! getent group nobody >/dev/null; then
  groupadd -g 65534 nobody >/dev/null 2>/dev/null
fi

if ! getent group nagios >/dev/null; then
  groupadd -g 28 nagios
fi

if ! getent passwd nagios >/dev/null; then
  useradd -u 51 -g nagios -d /tmp nagios
fi

grep -q nsca /etc/services || echo >>/etc/services "nsca            5667/tcp        # NSCA"