README.md

Miscellaneous Network Scripts

Miscellaneous network scripts for random tasks

Pretty IP Subnet Tree

This script creates a CIDR block tree in nested JSON for use with the D3.js tree collapsable tree diagram. Input the master CIDR block and the max length you want to go in depth.

Example

[ccurtis@shark misc_net_scripts]$ ./create_cidr_tree.py --help
usage: create_cidr_tree.py [-h] [--network PARENT_PREFIX]
                           [--max-prefix LENGTH]

CIDR JSON Generator - For use with D3.js Tree Graph

optional arguments:
  -h, --help            show this help message and exit
  --network PARENT_PREFIX
                        Parent CIDR block
  --max-prefix LENGTH   Maximum prefix length depth

[ccurtis@shark misc_net_scripts]$ ./create_cidr_tree.py --network 10.1.1.0/24 --max-prefix 29
{
  "children": [
    {
      "children": [
        {
          "children": [
            {
              "children": [
                {
                  "children": [
                    {
                      "name": "10.1.1.0/29"
                    },
                    {
                      "name": "10.1.1.8/29"
                    }
                  ],
                  "name": "10.1.1.0/28"
                },
                {
                  "children": [
                    {
                      "name": "10.1.1.16/29"
                    },
                    {
                      "name": "10.1.1.24/29"
                    }
                  ],
                  "name": "10.1.1.16/28"
...output truncated...

Output to File:

[ccurtis@shark misc_net_scripts]$ ./create_cidr_tree.py --network 10.1.1.0/24 --max-prefix 29 > cidr_tree.json

DNS Updater

CGI-BIN app for Windows IIS to update and delete forward and reverse DNS records from web form. It uses dnscmd.exe to perform the actual updates.

Installation

In order to use this, you must install python on Windows, IIS, enable CGI scripts. Then place this in CGI-BIN and run. Also, the user account that runs IIS must be a member of DNS Admins group in AD. Yes I know this is risky, but it was for a lab environment.