30 lines
1.5 KiB
Markdown
30 lines
1.5 KiB
Markdown
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# ICANN CZDS
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The [ICANN Centralized Zone Data Service](https://czds.icann.org) *(CZDS)* allows *approved* users to request and download DNS zone files in bulk, provided they represent a legitimate company or academic institution and their intended use is legal and ethical. Once ICANN approves the request, this tool streamlines the retrieval of extensive domain name system data, facilitating research and security analysis in the realm of internet infrastructure.
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## Zone Information
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Zone files are updated once every 24 hours, specifically from 00:00 UTC to 06:00 UTC. Access to these zones is granted in increments, and the total time for approval across all zones may extend to a month or longer. It is typical for more than 90% of requested zones to receive approval. Please be aware that access to certain zones is time-bound, expiring at the beginning of the following year, or up to a decade after the initial approval has been confirmed.
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## Usage
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### Authentication
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Credentials may be provided interactively upon execution or via the `CZDS_USER` & `CZDS_PASS` environment variables:
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```bash
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export CZDS_USER='your_username'
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export CZDS_PASS='your_password'
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```
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### Python version
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```bash
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python czds.py [--username <username> --password <password>] [--concurrency <int>]
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```
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### POSIX version
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```bash
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./czds
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```
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___
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###### Mirrors
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[acid.vegas](https://git.acid.vegas/czds) • [GitHub](https://github.com/acidvegas/czds) • [GitLab](https://gitlab.com/acidvegas/czds) • [SuperNETs](https://git.supernets.org/acidvegas/czds)
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