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ISA VUT FIT 2022/23

Name of the project: Tunelování datových přenosů přes DNS dotazy

Author: Dalibor Králik (xkrali20)

Date: 23.10.2022

Description

Project restrictions:

       This project doesn't support IPv6.

How to run the application

  1.   Open terminal in the root folder of the project and type command
      $make

  2.   dns_receiver {BASE_HOST} {DST_DIRPATH}
      In the first terminal in the root folder and type command

      $sudo ./dns_receiver example.com ./data

      Where example.com is {BASE_HOST} and ./data is {DST_PATH}
    -> {BASE_HOST} serves to set up base domain for receiving DNS packets
    -> {DST_DIRPATH} serves to set up path for the folder/file with received data

  3.   dns_sender [-u UPSTREM_DNS_IP] {BASE_HOST} {DST_FILEPATH} [SRC_FILEPATH]
      Open second terminal in the root folder and type command

      $./dns_sender -u 127.0.0.1 example.com output/data.txt ./data.txt

    -> -u serves to set up force remote DNS server connection
    -> {BASE_HOST} serves to set up base domain for sending DNS packets
    -> {DST_FILEPATH} serves to set up path for the file with received data
    -> [SRD_FILEPATH] File with input data. If not used as a parameter, then data is read from STDIN.



List of uploaded files

  • receiver/dns_receiver_events.c -> source file of DNSreceiver application
  • receiver/dns_receiver_events.h -> header file of DNSreceiver application
  • sender/dns_sender_events.c -> source file of DNSsender application
  • sender/dns_sender_events.h -> header file of DNSsender application
  • base32.c -> source file of base32 hashing library
  • base32.h -> header file of base32 hashing library
  • LICENSE
  • Makefile
  • README.md

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