Standard Ultranet Node software can be found here
The following platforms were used to test Sun on:

  • Windows 10 x64
  • Ubuntu 22.04 LTS
  • MacOS Catalina (10.15.7) x64

Others should work too; check this page for all platforms supported by .NET 8.0 Runtime


1. Unpack downloaded archive to any empty folder on a disk.

2. If needed, download and install .NET 8.0 Runtime

3. Open firewall settings and allow incoming connections for TCP port 3801.

4. Run "sun.exe node run peer" command to connect to the network

LINUX (Ubuntu 22.04 LTS)

1. Install dotnet 8.0

wget -O packages-microsoft-prod.deb
sudo dpkg -i packages-microsoft-prod.deb
rm packages-microsoft-prod.deb
sudo apt-get update \
&& sudo apt-get install apt-transport-https -y \
&& sudo apt-get update \
&& sudo apt-get install dotnet-runtime-8.0 dotnet-sdk-8.0 -y

2. Install additional dependencies

sudo apt-get install libsnappy-dev unzip libc6-dev -y

3. Create 'sun' directory

sudo mkdir -p /usr/lib/sun/ && cd /usr/lib/sun

4. Download the latest Sun distribution package.

sudo wget

5. Extract the distributive archive.

sudo unzip

6. Run the node and connect to the network

/usr/bin/dotnet /usr/lib/sun/Sun.dll node run peer


1. Download and install the latest .NET 8.0 Runtime and SDK using link1, link2 on macOS 10.13+, x64

curl -o dotnet-runtime-8.0.1-osx-x64.pkg
sudo installer -pkg dotnet-runtime-8.0.1-osx-x64.pkg -target /
curl -o dotnet-sdk-8.0.101-osx-x64.pkg
sudo installer -pkg dotnet-sdk-8.0.101-osx-x64.pkg -target /

2. Download the latest SUN archive, extract and set up permissions:

curl -o
sudo unzip -d /usr/local/sun
sudo chown -R $USER /usr/local/sun

3. Run the node and connect to the network

/usr/local/share/dotnet/dotnet /usr/local/sun/Sun.dll node run peer


The following platform was used to test SUN docker container:

  • Windows 11 x64 WSL2
  • Ubuntu 22.04 LTS
  • MacOS Catalina (10.15.7) x64

Docker is a common container runtime that will easily run Ultranet software. If you are running Linux, ensure you have installed the Docker Engine. If you are running Window or MacOS be free to install Docker Desktop for Windows, MacOS respectively.

The latest Node Sun container will be pulled out and installed at the first its run by the command:

docker run -ti --rm -v ${HOME}:/root mightywill/sun:latest node run peer