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oldhost

oldhost is a tool for bug bounty hunters to discover old hosts that are no longer available, but might still be present on different known and related servers.

Installation

To install oldhost, follow the steps below:

  • Ensure you have Go installed on your system.
  • Run the following command to install the required packages:
go install -v github.com/topscoder/oldhost@latest

Options

Run the script using the following command-line arguments:

oldhost -ips <ips> -hosts <hosts> [-curl] [-silent]
  • -ips (required): Specify an IP address or provide a filename containing IP addresses (one per line).
  • -hosts (required): Specify the hostname or provide a filename containing hosts (one per line).
  • -curl (optional): Output the results as Curl commands.
  • -silent (optional): Run in silent mode, suppresses non-200 responses (except for content length).

View the results:

  • The script will perform HTTP and HTTPS requests for each IP and host combination.
  • The script will display the response status code and content length for each successful request.
  • If the -curl flag is specified, Curl commands will be displayed instead of the response details.

Example

Here is an example command to run oldhost:

oldhost -ips "192.168.0.1" -hosts "example.com" -curl

This command will perform HTTP and HTTPS requests to the specified IP addresses and hosts, displaying the results as Curl commands.

Notes

  • The script limits the number of concurrent calls to 5 for performance reasons. You can adjust this value by modifying the semaphore channel in the code.

  • The script supports both individual strings and filenames as input for IP addresses and hosts. If a filename is provided, the script reads the IP addresses and hosts from the file (one per line).

  • The script removes any trailing slashes from the hosts and tries to append default ports (":80" for HTTP and ":443" for HTTPS) to the host header.

  • The script has a timeout of 1 second for each HTTP request.

  • If the -silent flag is specified, the script will only print results for successful requests (200 status code). Use this flag to reduce the output and focus on relevant information.

Contributing

Contributions are welcome! If you find a bug or want to suggest a new feature, please open an issue or submit a pull request.

License

This project is licensed under the MIT License.