When using Docker Windows containers, you will inevitably run into an issue where host DNS fails to connect. In this case, update the values in Docker Engine as
When using Docker Windows containers, you will inevitably run into an issue where host DNS fails to connect.
{
"bridge": "Internet",
"debug": false,
"dns": [
"1.1.1.1",
"8.8.8.8"
],
"builder": {
"gc": {
"defaultKeepStorage": "20GB",
"enabled": true
}
},
"experimental": false,
"features": {
"buildkit": true
},
"insecure-registries": [],
"registry-mirrors": []
}In this case, update the values in Docker Engine as shown above, and the Docker image should build without any problems.
If you want to enable “Expose daemon on tcp” on port 2375, configure it as follows:
{
"bridge": "Internet",
"builder": {
"gc": {
"defaultKeepStorage": "20GB",
"enabled": true
}
},
"debug": false,
"dns": [
"1.1.1.1",
"8.8.8.8"
],
"experimental": false,
"features": {
"buildkit": true
},
"hosts": [
"tcp://0.0.0.0:2375"
],
"insecure-registries": [],
"registry-mirrors": []
}To open port 2375 to external connections, you need to open it in the firewall using netsh. However, simply opening it generally creates a security vulnerability, so configure it to allow only specific IP addresses.
netsh advfirewall firewall add rule name="Docker Engine" dir=in action=allow protocol=TCP localport=2375 remoteip=AAA.AAA.AAA.AAA BBB.BBB.BBB.BBBnetsh advfirewall firewall delete rule name="Docker Engine"