Groovy: Script to run from Jenkins Script Console to Quickly Test DNS to GitHub

dns-test.groovy

import java.net.InetAddress;
import java.net.UnknownHostException;

void displayStuff(String whichHost, InetAddress inetAddress) {
	print("--------------------------" + "\n");
	print("Which Host:" + whichHost + "\n");
	print("Canonical Host Name:" + inetAddress.getCanonicalHostName() + "\n");
	print("Host Name:" + inetAddress.getHostName() + "\n");
	print("Host Address:" + inetAddress.getHostAddress() + "\n");
}


InetAddress inetAddress = InetAddress.getLocalHost();
displayStuff("local host", inetAddress);
inetAddress = InetAddress.getByName("github.com");
displayStuff("github.com", inetAddress);

example-output.md

The following is some example output:

--------------------------
Which Host:local host
Canonical Host Name:b6fd975556d2
Host Name:b6fd975556d2
Host Address:172.19.0.2
--------------------------
Which Host:github.com
Canonical Host Name:140.82.121.3
Host Name:github.com
Host Address:140.82.121.3