Perform automated DNS queries from command-line input

Install package dependencies

pip install -r requirements.txt

Note: Python 3.6 or higher is required

dnsck.py domain [-s server] [-t type] [-i iterations] [--tcp] [--nosleep] [-h] [-v]

The domain argument is mandatory. Additional optional arguments:

• -s, --server (default 8.8.8.8)
• -t, --type (default A)
• -i, --iter (default 30)
• --tcp (default udp)
• --nosleep (default sleep 1 second)

Perform 300 queries to resolver 8.8.8.8 for google.com AAAA records

dnsck/dnsck.py google.com -t AAAA -i 300

Perfom 30 queries to resolver 1.1.1.1 for www.amazon.com A records with no sleep between queries

python3 dnsck/dnsck.py -s 1.1.1.1 www.amazon.com --nosleep

Perfom 10 TCP queries to resolver 192.168.0.1 for change.org TXT records

dnsck/dnsck.py -s 192.168.0.1 change.org -t txt -i 10 --tcp

Display help

dnsck/dnsck.py --help

Display version

dnsck/dnsck.py --version

dnsck_query(dns_server, dns_query, record_type, iterations)

• Perform a UDP or TCP DNS query for a set number of iterations

is_valid_ip_address(ip_addr)

• Checks input is a valid IPv4 or IPv6 address

main()

• Main program