my $sftp = do {
  #local $SIG{TERM} = 'IGNORE';
  Net::SFTP::Foreign->new(
    host     => $host,
    user     => $user,
    password => $pass,
    autodie  => 1,
  );
};

do {
  local $SIG{TERM} = 'IGNORE'
  $sftp->disconnect();
}