Have you ever needed a quick tool to lookup multiple hosts (Java based on the InetAddress class.
The following Java code has been uploaded to github: https://github.com/DoctorLai/DNSLookup
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 | import java.net.InetAddress; import java.net.UnknownHostException; public class DNSLookup { // https://helloacm.com/the-dns-lookup-tool-in-java-inetaddress/ public static void main(String args[]) { try { InetAddress host; if (args.length == 0) { host = InetAddress.getLocalHost(); displayHost(host); } else { for (int i = 0; i < args.length; ++ i) { host = InetAddress.getByName(args[i]); displayHost(host); } } } catch (UnknownHostException e) { e.printStackTrace(); } } private static void displayHost(InetAddress host) { System.out.println("Host:'" + host.getHostName() + "' has address: " + host.getHostAddress()); } } |
import java.net.InetAddress;
import java.net.UnknownHostException;
public class DNSLookup {
// https://helloacm.com/the-dns-lookup-tool-in-java-inetaddress/
public static void main(String args[]) {
try {
InetAddress host;
if (args.length == 0) {
host = InetAddress.getLocalHost();
displayHost(host);
} else {
for (int i = 0; i < args.length; ++ i) {
host = InetAddress.getByName(args[i]);
displayHost(host);
}
}
} catch (UnknownHostException e) {
e.printStackTrace();
}
}
private static void displayHost(InetAddress host) {
System.out.println("Host:'" + host.getHostName()
+ "' has address: " + host.getHostAddress());
}
} The above when compiled using javac DNSLookup.java generates DNSLookup.class (or download a pre-compiled version). And you can query the Host IP addresses based on the InetAddress.getHostAddress method.
# java DNSLookup Host:'HP-PC' has address: 192.168.0.102 HP@HP-PC D:\ # java DNSLookup localhost Host:'localhost' has address: 127.0.0.1 HP@HP-PC D:\ # java DNSLookup localhost www.google.com Host:'localhost' has address: 127.0.0.1 Host:'www.google.com' has address: 216.58.201.36
We can print all local IP addresses using this Java Program: Java Program to Print All Local IP Addresses
–EOF (The Ultimate Computing & Technology Blog) —
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