private void netWorkAccessAllowed(String host) {
		if (allowedHost.contains(host)) {
			return;
		}
		throw new SecurityException("NetWork access on " + host + " is not allowed. Please add " + host
				+ " on the target host setting.");
	}
NetWork access is allowed on "ngrinder.etc.hosts".

@param host host name
ngrinder-runtime/src/main/java/org/ngrinder/sm/NGrinderSecurityManager.java