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dns-packet-sniffer's Introduction

DNS packet sniffing using java

Author: prakashpandey

This Application listen to a network device provided by user and filter out the DNS packet.

     0                              16                            31
     * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     * |Version|  IHL  |Type of Service|           Total Length        |
     * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     * |         Identification        |Flags|      Fragment Offset    |
     * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     * |  Time to Live |    Protocol   |         Header Checksum       |
     * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     * |                       Source Address                          |
     * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     * |                    Destination Address                        |
     * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     * |                    Options                    |    Padding    |
     * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     

Build project

  • git clone github.com/prakashpandey/packetsniffer

  • cd packetsniffer

  • mvn clean

  • mvn install

  • mvn compile assembly:single

  • java -jar jar_name.jar device_name. E.g java -jar target/packetsniffer-0.0.1-SNAPSHOT-jar-with-dependencies.jar 127.0.0.1

Note: You can find the name of the jar at /target folder

Application structure


pom.xml
├── README.md
├── src
│   ├── main
│   │   └── java
│   │       └── com
│   │           └── prakashpandey
│   │               └── packetsniffer
│   │                   ├── Device.java
│   │                   ├── PacketHandler.java
│   │                   ├── PacketManager.java
│   │                   └── PacketSniffer.java

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