dnstap

dnstap enables logging to dnstap, a flexible, structured binary log format for DNS software: http://dnstap.info.

There is a buffer, expect at least 13 requests before the server sends its dnstap messages to the socket.

Syntax

dnstap SOCKET [full]

• SOCKET is the socket path supplied to the dnstap command line tool.
• full to include the wire-format DNS message.

Examples

Log information about client requests and responses to /tmp/dnstap.sock.

dnstap /tmp/dnstap.sock

Log information including the wire-format DNS message about client requests and responses to /tmp/dnstap.sock.

dnstap unix:///tmp/dnstap.sock full

Log to a remote endpoint.

dnstap tcp://127.0.0.1:6000 full

Dnstap command line tool

% go get github.com/dnstap/golang-dnstap
% cd $GOPATH/src/github.com/dnstap/golang-dnstap/dnstap
% go build
% ./dnstap

The following command listens on the given socket and decodes messages to stdout.

% dnstap -u /tmp/dnstap.sock

The following command listens on the given socket and saves message payloads to a binary dnstap-format log file.

% dnstap -u /tmp/dnstap.sock -w /tmp/test.dnstap

Listen for dnstap messages on port 6000.

% dnstap -l 127.0.0.1:6000