godns

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GoDNS is a dynamic DNS (DDNS) client tool, it is based on my early open source project: DynDNS.

Now I rewrite DynDNS by Golang and call it GoDNS.

Supported DNS Provider

DNSPod (https://www.dnspod.cn/)
HE.net (Hurricane Electric) (https://dns.he.net/)

Supported Platforms

Linux
MacOS
ARM Linux (Raspberry Pi, etc...)
Windows
MIPS32 platform

MIPS32 platform

To compile binaries for MIPS (mips or mipsle):

GOOS=linux GOARCH=mips/mipsle GOMIPS=softfloat go build -a

And the binary can run well on routers.

Pre-condition

Register and own a domain.
Domain's nameserver points to DNSPod or HE.net.

Get it

Build it from source code

Get source code from Github:

git clone https://github.com/timothyye/godns.git

Go into the godns directory, get related library and then build it:

cd cmd/godns
go get -v
go build

Download from releases

Download compiled binaries from releases

Get help

$ ./godns -h
Usage of ./godns:
  -c string
        Specify a config file (default "./config.json")
  -d    Run it as docker mode
  -h    Show help

Config it

Get config_sample.json from Github.
Rename it to config.json.
Configure your provider, domain/sub-domain info, username and password, etc.
Configure the SMTP options if you want, a mail notification will sent to your mailbox once the IP is changed.
Save it in the same directory of GoDNS, or use -c=your_conf_path command.

Config example for DNSPod

For DNSPod, you need to provide email & password, and config all the domains & subdomains.

{
  "provider": "DNSPod",
  "email": "",
  "password": "",
  "login_token": "your_id,your_token",
  "domains": [{
      "domain_name": "example.com",
      "sub_domains": ["www","test"]
    },{
      "domain_name": "example2.com",
      "sub_domains": ["www","test"]
    }
  ],
  "ip_url": "http://members.3322.org/dyndns/getip",
  "socks5_proxy": ""
}

Config example for HE.net

For HE, email is not needed, just fill DDNS key to password, and config all the domains & subdomains.

{
  "provider": "HE",
  "email": "",
  "password": "YourPassword",
  "login_token": "",
  "domains": [{
      "domain_name": "example.com",
      "sub_domains": ["www","test"]
    },{
      "domain_name": "example2.com",
      "sub_domains": ["www","test"]
    }
  ],
  "ip_url": "http://members.3322.org/dyndns/getip",
  "socks5_proxy": ""
}

HE.net DDNS configuration

Add a new "A record", make sure that "Enable entry for dynamic dns" is checked:

Fill your own DDNS key or generate a random DDNS key for this new created "A record":

Remember the DDNS key and fill it as password to the config.json.

NOTICE: If you have multiple domains or subdomains, make sure their DDNS key are the same.

Email notification support

Update config file and provide your SMTP options, a notification mail will be sent to your mailbox once the IP is changed and updated.

  "notify": {
    "enabled": true,
    "smtp_server": "smtp.example.com",
    "smtp_username": "user",
    "smtp_password": "password",
    "smtp_port": 25,
    "send_to": "my_mail@example.com"
  }

Notification mail example:

SOCKS5 proxy support

You can also use SOCKS5 proxy, just fill SOCKS5 address to the socks5_proxy item:

"socks5_proxy": "127.0.0.1:7070"

Now all the queries will go through the specified SOCKS5 proxy.

Run it as a daemon manually

nohup ./godns &

Run it as a daemon, manage it via Upstart

Install upstart first
Copy ./upstart/godns.conf to /etc/init
Start it as a system service:

sudo start godns

Run it as a daemon, manage it via Systemd

Modify ./systemd/godns.service and config it.
Copy ./systemd/godns.service to /lib/systemd/system
Start it as a systemd service:

sudo systemctl enable godns
sudo systemctl start godns

Run it with docker

Now godns supports to run in docker.

Get config_sample.json from Github.
Rename it to config.json.
Run GoDNS with docker:

docker run -d --name godns --restart=always \
-v /path/to/config.json:/usr/local/godns/config.json timothyye/godns:latest

README.md