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# PTR Stream
PTRStream is an asynchronous reverse DNS lookup tool developed in Python. It generates random IP addresses and performs reverse DNS lookups using various DNS servers.
The ptrstream repository contains a straightforward yet well-crafted Python script for conducting reverse DNS lookups across the entire IPv4 address range. It systematically generates each IPv4 address in a pseudo-random sequence using a seed, ensuring every possible address is covered. For each IP address, the script performs a PTR *(reverse DNS)* lookup and logs all successful findings. Designed to run continuously, ptrstream is an efficient tool for network monitoring and tracking PTR records globally, making it a practical resource for network enthusiasts and professionals who require a reliable and uncomplicated solution for DNS monitoring.
## Requirements
- [python](https://www.python.org/)
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```
| Argument | Description |
| ---------------------- | ------------------------------------------------------------ |
| `-c`, `--concurrency` | Control the speed of lookups. *(Default = 50)* |
| `-t`, `--timeout` | Timeout for DNS lookups. |
| --------------------- | ------------------------------------------------------------ |
| `-c`, `--concurrency` | Control the speed of lookups. *(Default = 100)* |
| `-t`, `--timeout` | Timeout for DNS lookups. *(Default = 5s)* |
| `-r`, `--resolvers` | File containing DNS servers to use for lookups. *(Optional)* |
## Now what?
The results are cached and saved to a file named ptr_{date}_{seed}.txt after every 1000 successful lookups. After a full loop through every IP address, a new seed will generate and start the scan again.
Output to elastic search possibly.
Extracting geo data from the ptr response...
Still a work in progress I guess...
| `-rt`, `--retries` | Number of times to retry a DNS lookup *(Default = 3)* |
| `-s`, `--seed` | Seed to use for the random number generator. |
## Preview
![](.screens/preview.gif)
___
###### Mirrors
[acid.vegas](https://git.acid.vegas/ptrstream) • [GitHub](https://github.com/acidvegas/ptrstream) • [GitLab](https://gitlab.com/acidvegas/ptrstream) • [SuperNETs](https://git.supernets.org/acidvegas/ptrstream)