xslackx / seedDNS

HotCache your local dns with most visited sites

seedDNS

Hotcache your local dns with most visited sites, not ordened list.

seedDNS arose from the need to test my local DNS servers, I am preparing for LPIC2 part 2 and one of the exam topics is DNS server administration.

As I wanted to explore the study tools a little more and needed some load, I wrote this small script that collects the most accessed sites compiled by Alexa and makes a request to the local DNS server.

Feeding the DNS cache.

In the previous version the csv data was from Alexa Ranking but until now the service is not running anymore.

Now seedDNS is using two sources from Cisco Umbrella and Majestic

what you need?

python3.6+, dig

usage CLI

Create, activate the environment and install the requirements.txt

usage: seed.py [-h] -s HOST -m MODE -t TYPE

Initialize seedDNS

options:
  -h, --help            show this help message and exit
  -s HOST, --host HOST  DNS server address (default: None)
  -m MODE, --mode MODE  0 to asyncio mode or 1 to sync mode (default: None)
  -t TYPE, --type TYPE  Type of DNS message (default: None) 

usage instance

from seedDNS import seedDNS as seed
# Initialize 
client = seed()
# Download the data
client.top1m()
# Format the data
client.fmtfile()
# Query DNS  
# options dns, mode, type_msg
client.consult('127.0.0.1', 0, 'ANY')