Go Language dns seeder for Bitcoin based networks
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
Lyndsay Roger b78cb421a9
Merge pull request #10 from JeremyRand/multiple-initial
3 years ago
configs Add "InitialIP" field to example configs 3 years ago
vendor/github.com Initial commit of code 9 years ago
.gitignore Initial commit 9 years ago
LICENSE Initial commit 9 years ago
README.md Document setcap 3 years ago
crawler.go Receive multiple peers per crawl 3 years ago
dns.go Improve commandline output in stats/verbose/debug mode 9 years ago
doc.go Initial support for seeding multiple networks and improve scaling for larger networks 9 years ago
go.mod Update go.mod and go.sum. 4 years ago
go.sum Update go.mod and go.sum. 4 years ago
http.go Add seeds.txt API 3 years ago
main.go Code cleanup 9 years ago
network.go remove old imports 9 years ago
node.go Performance improvements 9 years ago
seeder.go Support multiple initial IP's 3 years ago
seeder_test.go golint cleanup 9 years ago



Go Language dns seeder for Networks that use Bitcoin technology such as the Twister P2P network and the Bitcoin networks.

It is based on the original c++ seeders created for the Bitcoin network and copied to other similar networks.


  • Supports multiple networks. You can run multiple seeders off one ip address.
  • Uses Go Language so it can easily be compiled and run on multiple platforms.
  • Minimal resource requirements. Will easily seed multiple networks on a Raspberry Pi 1 Mobel B+
  • Restricts the number of addresses accepted from any one node.
  • Cycle through working nodes to keep the active list fresh
  • Reduces bandwidth usage on nodes if it has many working nodes already in the system.
  • Ability to generate and edit your own seeder config file to support new networks.

Planned features

  • Support remote crawlers. Run the DNS seeder on one system and the crawlers on a different system.

Also see the associated utility to display information about non-standard ip addresses


Simply use go get to download the code:

$ go get github.com/gombadi/dnsseeder

Dependencies are handled by the Go vendor directory. Note: This means the codebase requires Go 1.5 or higher and use of GO15VENDOREXPERIMENT=1

There seem to be some issues with using go get so a process that works for me on Unix based systems is -

cd ${HOME}
mkdir -p go/src/github.com/gombadi
cd go/src/github.com/gombadi
git clone the repo into this directory
cd dnsseeder
go install

The binary will then be available in ${HOME}/go/bin


$ dnsseeder -v -netfile <filename1,filename2>

An easy way to run the program is with tmux or screen. This enables you to log out and leave the program running.

If you want to be able to view the web interface then add -w port for the web server to listen on. If this is not provided then no web interface will be available. With the web site running you can then access the site by http://localhost:port/summary

NOTE - For security reasons the web server will only listen on localhost so you will need to either use an ssh tunnel or proxy requests via a web server like Nginx or Apache.

Command line Options:
-netfile comma seperated list of json network config files to load
-j write a sample network config file in json format and exit.
-p port to listen on for DNS requests
-d Produce debug output
-v Produce verbose output
-w Port to listen on for Web Interface

An easy way to run the program is with the following script. Change to suit your system.



mkdir -p ${LOGDIR}

gzip ${LOGDIR}/*.log

echo "======= Run the Go Language dnsseed ======="
${HOME}/go/bin/dnsseeder -p <dns.port.to.listen.on> -v -w 8880 -netfile ${1} 2>&1 | tee ${LOGDIR}/$(date +%F-%s)-goseeder.log


Typically, you'll need root privileges to listen to port 53 (name service). Some potential solutions:


One solution is using an iptables rule (Linux only) to redirect it to a non-privileged port:

$ iptables -t nat -A PREROUTING -p udp --dport 53 -j REDIRECT --to-port 5353

If properly configured, this will allow you to run dnsseeder in userspace, using the -p 5353 option.


On Linux, another solution is running the following command to authorize dnsseeder to bind to privileged ports.

$ sudo setcap 'cap_net_bind_service=+ep' ${HOME}/go/bin/dnsseeder


For the DNS library license see https://github.com/miekg/dns

For the bitcoin library license see https://github.com/btcsuite/btcd