🐶 Command-line DNS client for humans
doggo.mrkaran.dev
---
**doggo** is a modern command-line DNS client (like _dig_) written in Golang. It outputs information in a neat concise manner and supports protocols like DoH, DoT and DNSCrypt as well.
It's totally inspired from [dog](https://github.com/ogham/dog/) which is written in Rust. I wanted to add some features to it but since I don't know Rust, I found it as a nice opportunity
to experiment with writing a DNS Client from scratch in `Go` myself. Hence the name `dog` +`go` => **doggo**.
## Features
- Human readable output - supports **colors** and **tabular** format.
- Supports **JSON** format - can be useful while writing scripts.
- Has support for multiple transport protocols:
- DNS over **HTTPS** (DoH)
- DNS over **TLS** (DoT)
- DNS over **TCP**
- DNS over **UDP**
- DNS over **DNSCrypt**
- Supports **ndots** and **search** configurations from `resolv.conf` or command-line arguments.
- Supports multiple resolvers at once.
- Supports IPv4 **and** IPv6 _both_.
- Available as a web tool as well: [https://doggo.mrkaran.dev](https://doggo.mrkaran.dev).
- Shell completions for `zsh` and `fish`.
- Reverse DNS Lookups.
## Installation
### Binary
You can grab the latest binaries for Linux, MacOS and Windows from the [Releases](https://github.com/mr-karan/doggo/releases) section.
For eg, to pull the latest `linux-amd64` binary:
```shell
$ cd "$(mktemp -d)"
$ curl -sL "https://github.com/mr-karan/doggo/releases/download/v0.3.7/doggo_0.3.7_linux_amd64.tar.gz" | tar xz
$ mv doggo /usr/local/bin
# doggo should be available now in your $PATH
$ doggo
```
### Docker
Images are hosted on Github Container Registry (ghcr.io).
You can view all the tags [here](https://github.com/users/mr-karan/packages/container/package/doggo). It even supports **ARM** so you can spin up a container on your RPi to do DNS lookups, cause why not.
**Pull**
`docker pull ghcr.io/mr-karan/doggo:latest`
**Running**
You can supply all arguments to the CLI directly to `docker run` command. Eg:
`docker run ghcr.io/mr-karan/doggo:latest mrkaran.dev @1.1.1.1 MX`
### Package Managers
#### Homebrew
Install via [Homebrew](https://brew.sh/)
```bash
$ brew install doggo
```
#### Arch
```bash
yay -S doggo-bin
```
### From Source
You need to have `go` installed in your system.
```bash
$ go install github.com/mr-karan/doggo/cmd/doggo@latest
```
The binary will be available at `$GOPATH/bin/doggo`.
## Usage Examples
**Do a simple DNS Lookup for `mrkaran.dev`**
```bash
$ doggo mrkaran.dev
NAME TYPE CLASS TTL ADDRESS NAMESERVER
mrkaran.dev. A IN 20s 13.250.205.9 127.0.0.1:53
mrkaran.dev. A IN 20s 206.189.89.118 127.0.0.1:53
```
**Query MX records for `github.com` using `9.9.9.9` resolver**
```
doggo MX github.com @9.9.9.9
NAME TYPE CLASS TTL ADDRESS NAMESERVER
github.com. MX IN 3600s 10 alt3.aspmx.l.google.com. 9.9.9.9:53
github.com. MX IN 3600s 5 alt1.aspmx.l.google.com. 9.9.9.9:53
github.com. MX IN 3600s 10 alt4.aspmx.l.google.com. 9.9.9.9:53
github.com. MX IN 3600s 5 alt2.aspmx.l.google.com. 9.9.9.9:53
github.com. MX IN 3600s 1 aspmx.l.google.com. 9.9.9.9:53
```
or using _named parameters_:
```bash
$ doggo -t MX -n 9.9.9.9 github.com
NAME TYPE CLASS TTL ADDRESS NAMESERVER
github.com. MX IN 3600s 10 alt3.aspmx.l.google.com. 9.9.9.9:53
github.com. MX IN 3600s 5 alt1.aspmx.l.google.com. 9.9.9.9:53
github.com. MX IN 3600s 10 alt4.aspmx.l.google.com. 9.9.9.9:53
github.com. MX IN 3600s 5 alt2.aspmx.l.google.com. 9.9.9.9:53
github.com. MX IN 3600s 1 aspmx.l.google.com. 9.9.9.9:53
```
**Query DNS records for `archive.org` using Cloudflare DoH resolver**
```bash
$ doggo archive.org @https://cloudflare-dns.com/dns-query
NAME TYPE CLASS TTL ADDRESS NAMESERVER
archive.org. A IN 41s 207.241.224.2 https://cloudflare-dns.com/dns-query
```
**Query DNS records for `internetfreedom.in` with JSON output**
```bash
$ doggo internetfreedom.in --json | jq
{
"responses": {
"answers": [
{
"name": "internetfreedom.in.",
"type": "A",
"class": "IN",
"ttl": "22s",
"address": "104.27.158.96",
"rtt": "37ms",
"nameserver": "127.0.0.1:53"
},
{
"name": "internetfreedom.in.",
"type": "A",
"class": "IN",
"ttl": "22s",
"address": "104.27.159.96",
"rtt": "37ms",
"nameserver": "127.0.0.1:53"
},
{
"name": "internetfreedom.in.",
"type": "A",
"class": "IN",
"ttl": "22s",
"address": "172.67.202.77",
"rtt": "37ms",
"nameserver": "127.0.0.1:53"
}
],
"queries": [
{
"name": "internetfreedom.in.",
"type": "A",
"class": "IN"
}
]
}
}
```
**Query DNS records for `duckduckgo.com` and show RTT (Round Trip Time)**
```bash
$ doggo duckduckgo.com --time
NAME TYPE CLASS TTL ADDRESS NAMESERVER TIME TAKEN
duckduckgo.com. A IN 30s 40.81.94.43 127.0.0.1:53 45ms
```
## Command-line Arguments
### Transport Options
URL scheme of the server is used to identify which resolver to use for lookups. If no scheme is specified, defaults to `udp`.
```
@udp:// eg: @1.1.1.1 initiates a UDP resolver for 1.1.1.1:53.
@tcp:// eg: @1.1.1.1 initiates a TCP resolver for 1.1.1.1:53.
@https:// eg: @https://cloudflare-dns.com/dns-query initiates a DOH resolver for Cloudflare DoH server.
@tls:// eg: @1.1.1.1 initiates a DoT resolver for 1.1.1.1:853.
@sdns:// eg: @sdns://AgcAAAAAAAAABzEuMC4wLjEAEmRucy5jbG91ZGZsYXJlLmNvbQovZG5zLXF1ZXJ5
initiates a DNSCrypt or DoH resolver using its DNS stamp.
@quic:// eg: @quic://dns.adguard.com
initiates a DNS over QUIC resolver for Adguard DNS Resolver.
```
### Query Options
```
-q, --query=HOSTNAME Hostname to query the DNS records for (eg mrkaran.dev).
-t, --type=TYPE Type of the DNS Record (A, MX, NS etc).
-n, --nameserver=ADDR Address of a specific nameserver to send queries to (9.9.9.9, 8.8.8.8 etc).
-c, --class=CLASS Network class of the DNS record (IN, CH, HS etc).
```
### Resolver Options
```
--strategy=STRATEGY Specify strategy to query nameserver listed in etc/resolv.conf. Defaults to `all` (`random`, `first`, `all`).
--ndots=INT Specify ndots parameter. Takes value from /etc/resolv.conf if using the system nameserver or 1 otherwise.
--search Use the search list defined in resolv.conf. Defaults to true. Set --search=false to disable search list.
--timeout Specify timeout (in seconds) for the resolver to return a response.
-4 --ipv4 Use IPv4 only.
-6 --ipv6 Use IPv6 only.
--tls-hostname=HOSTNAME Provide a hostname for doing verification of the certificate if the provided DoT nameserver is an IP.
--skip-hostname-verification Skip TLS Hostname Verification in case of DOT Lookups.
```
### Output Options
```
-J, --json Format the output as JSON.
--color Defaults to true. Set --color=false to disable colored output.
--debug Enable debug logging.
--time Shows how long the response took from the server.
--short Short output format. Shows only the response section.
```
---
## Contributing
I'm open to accept feature requests and/or issues. I understand `doggo` is a new DNS Client in the town and there might be some edge cases I am not handling.
Please feel free to open issues if you ever come across such a case.
For now I am focussing more on [planned features](TODO.md) for a **stable** v1.0 release _soon_.
## License
Copyright (C) 2022 mr-karan
This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License along with this program. If not, see