Dale

A DNS filter written in C.

This project is intended to be used between a client and a DNS resolver such as Unbound.

The intended purpose for now is to filter DNS queries based on the QNAME (domain name).

This would allow you to control which domains you wish not to resolve, for purposes such as ad/tracker blocking.

Dependencies

Runtime

To run dale, you will need the following:

• libpq

Development

If you wish to build this project from source, you will also need the following:

• A C compiler
• make
• pkg-config
• libpq-dev

Quick start

To build and install dale, run the following commands:

$ git clone https://github.com/jwren0/dale.git
$ cd dale/
# make install

Viewing usage

To view the usage for dale, you can run

$ dale --help

Running

Assuming you have a resolver at 127.0.0.1 on port 8080, you can run dale in the foreground using the following command:

$ dale -f -H 127.0.0.1 -P 8080

If you wish to run dale as a daemon, you can omit the "-f" option or specify "-b".

Make targets

Building

$ make build

Installing

# make install

Uninstalling

# make uninstall

References

This project is based heavily on RFC 1035, along with some aspects of RFC 3596 for handling IPv6 records (AAAA).

You can view these RFCs here:

• RFC 1035
• RFC 3596