@Override
	public void checkRead(String file, Object context) {
		if (isControllerContext()) {
			if (file != null) {
				this.fileAccessReadAllowed(file);
			}
		}
	}
Get ip address of target hosts. <br>
if target hosts 'a.com:1.1.1.1' add 'a.com' & '1.1.1.1' <br>
if target hosts ':1.1.1.1' add : '1.1.1.1' <br>
if target hosts '1.1.1.1' add : '1.1.1.1' <br>
<br>
Add controller host<br>
ngrinder-runtime/src/main/java/org/ngrinder/sm/NGrinderSecurityManager.java