post_install() {
  # add inetsim group
  if [ ! `getent passwd inetsim` ]; then
    groupadd -g 101 inetsim &>/dev/null
  fi

  # run inetsim setup script
  cd /opt/inetsim
  ./setup.sh

}

post_upgrade() {
  if (( $(vercmp $2 1.2.6-4) <= 0 )); then
    groupmod -g 101 inetsim
    chgrp -R inetsim /opt/inetsim
  fi
}