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https://github.com/hakluke/hakrevdns
Small, fast tool for performing reverse DNS lookups en masse.
https://github.com/hakluke/hakrevdns
Last synced: about 2 months ago
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Small, fast tool for performing reverse DNS lookups en masse.
- Host: GitHub
- URL: https://github.com/hakluke/hakrevdns
- Owner: hakluke
- License: mit
- Created: 2019-12-19T01:14:33.000Z (over 4 years ago)
- Default Branch: master
- Last Pushed: 2024-01-13T04:32:20.000Z (8 months ago)
- Last Synced: 2024-06-18T18:52:22.403Z (3 months ago)
- Language: Go
- Homepage:
- Size: 29.3 KB
- Stars: 1,366
- Watchers: 19
- Forks: 153
- Open Issues: 10
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# hakrevdns
Small, fast, simple tool for performing reverse DNS lookups en masse.
You feed it IP addresses, it returns hostnames.
This can be a useful way of finding domains and subdomains belonging to a company from their IP addresses.
## Installation
```sh
go install github.com/hakluke/hakrevdns@latest
```
## Usage
The most basic usage is to simply pipe a list of IP addresses into the tool, for example:
```sh
hakluke~$ prips 173.0.84.0/24 | hakrevdns
173.0.84.110 he.paypal.com.
173.0.84.109 twofasapi.paypal.com.
173.0.84.114 www-carrier.paypal.com.
173.0.84.77 twofasapi.paypal.com.
173.0.84.102 pointofsale.paypal.com.
173.0.84.104 slc-a-origin-pointofsale.paypal.com.
173.0.84.111 smsapi.paypal.com.
173.0.84.203 m.paypal.com.
173.0.84.105 prm.paypal.com.
173.0.84.113 mpltapi.paypal.com.
173.0.84.8 ipnpb.paypal.com.
173.0.84.2 active-www.paypal.com.
173.0.84.4 securepayments.paypal.com.
...
```
### Parameters
```sh
hakluke~$ hakrevdns -h
Usage:
hakrevdns [OPTIONS]
Application Options:
-t, --threads= Number of threads (too many may get you banned, too few will be slow)
-r, --resolver= IP of the DNS resolver to use for lookups
-P, --protocol=[tcp|udp] Protocol to use for lookups (default: udp)
-p, --port= Port to bother the specified DNS resolver on (default: 53)
-d, --domain Output only domains
Help Options:
-h, --help Show this help message
```
If you want to use a resolver not specified by your OS, say: 1.1.1.1, try this:
```sh
hakluke~$ echo "173.0.84.110" | hakrevdns -r 1.1.1.1
173.0.84.110 he.paypal.com.
```
If you wish to obtain only a list of domains without IP addresses, you can use `-d`:
```sh
$ echo "173.0.84.110" | hakrevdns -d
```
This tool is designed to be easily piped into other tools, for example:
```sh
$ echo "173.0.84.110" | hakrevdns -d | httprobe
```
## Contributors
- [hakluke](https://twitter.com/hakluke) wrote the tool
- [alphakilo](https://github.com/Alphakilo/) added the option to use custom resolvers
- [SaveBreach](https://twitter.com/SaveBreach/) added the -d flag and cleaned up the code