bowline

bowline is a DNS full resolver (cache server) which supports:

• Basic feature of DNS full resolvers (RFC 1123)
• DNS over UDP 53 and TCP 53
• DNS over TLS (RFC7858), QUIC (RFC 9250), H2 and H3 (RFC 8484) for communication with stub resolvers
• DNSSEC for communication with authoritative servers (RFC 9364)
• Negative Trust Anchor
• stub-zone, local-zone, local-data
• DNSTAP for logging
• Web API (for reloading etc)
• Monitor console
• Prometheus

Releases

• Binaries are available

Installation

We have a debian package hosted on public repository; follow the instruction below to install.

curl -1sLf \
  'https://dl.cloudsmith.io/public/iijlab/bowline/setup.deb.sh' \
  | sudo -E bash
sudo apt-get update
sudo apt-get install bowline

Configuration

• bowline.conf
• local-example.conf
• stub-example.conf

Executing

% sudo bowline bowline.conf

If bowline runs well, a monitor console is provided via stdin/stdout. Type help to know its commands.

Web API

Send GET to the following path:

• /metrics: get stats
• /stats: get stats
• /wstats: get workers’ stats
• /reopen-log: reopen a log file
• /reload: reload
• /keep-cache: Reloading with the cache kept
• /quit: quit
• /help: display help
• /: display help