A self-contained GoLang library that is capable of blocking ads,malwares and trackers using DNS Sinkholing. This libray can be integrated with different pre-existing cross-platform applications.
The detailed download and installation guide can be found at official website of Go.
# 1. Download Go Binary Archive wget https://golang.org/dl/go1.18.4.linux-amd64.tar.gz # 2. Extract it tar -xzf go1.18.4.linux-amd64.tar.gz -C /usr/local/ # 3. Add PATH Variables sudo nano /etc/profile export PATH=$PATH:/usr/local/go/bin source /etc/profile # 4. Check Go Version go version
You can refer to the official documentation for setting GOPATH.
After installing Go, we need gobind. Gobind is a tool that generates language bindings that make it possible to call Go functions from Java and Objective-C. It is called internally by gomobile which can help us build cross-platform applications.
go install golang.org/x/mobile/cmd/gomobile@latest # To compile Android APK and IOS Apps gomobile bind [-target android|ios|iossimulator|macos|maccatalyst] [-bootclasspath <path>] [-classpath <path>] [-o output] [build flags] [package]
To clone and build VPN-Hole Library:
git clone https://0xacab.org/leap/vpn-hole.git cd vpn-hole
To load all of the packages in the main module:
# If go.mod and go.sum are present then, # Run go mod tidy
If go.mod and go.sum are missing from the cloned repository, then:
# go mod init [module-path] go mod init 0xacab.org/leap/vpn-hole/vpnhole
To build the library and use it as a standalone:
# navigate to app/vpnhole cd app/vpnhole # build the library go build
An executable binary file would be generated for the library.
On MacOSX Monterey you may encounter an build error like this
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/pthread.h:328:6: error: macro expansion producing 'defined' has undefined behavior [-Werror,-Wexpansion-to-defined] /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/pthread.h:197:2: note: expanded from macro '_PTHREAD_SWIFT_IMPORTER_NULLABILITY_COMPAT'
You can fix it by adapting the compiler flags, e.g. by prefixing
go build with
CGO_CPPFLAGS="-Wno-error -Wno-nullability-completeness -Wno-expansion-to-defined -Wbuiltin-requires-header".
On Ubuntu if you face an error saying:"Failed to serve DNS server: listen udp :53: bind: permission denied"
# see the services listening on port 53 sudo ss -lp "sport = :domain" or sudo lsof -i :53
You can see that Ubuntu has systemd-resolved listening on port 53 by default. This will prevent us from running our own DNS server To disable it temporarily and run our own server
# stop sudo systemctl stop systemd-resolved # disable sudo systemctl disable systemd-resolved
To disable it permanently, uncomment and change
DNSStubListener to no in
/etc/systemd/resolved.conf; you can revert back everything to default if you stop using the vpn-hole library as a standalone.
Also stop any other service which prevents from listening on port 53. Then, you can simply execute the binary file.
In Windows, an executable named- vpnhole.exe would be created.
# executing the binary vpnhole.exe
This would start the network wide DNS-level blocker on port 53.
To check if the blocker is blocking malicious domains from the provided blacklist, run nslookup command and see the response:
# For example: 'adbuddiz.com' is one of the domain in the blacklist nslookup -port=53 adbuddiz.com localhost Server: UnKnown Address: ::1 Non-authoritative answer: Name: adbuddiz.com Addresses: :: 0.0.0.0
To integrate the VPN-Hole Library with existing cross-platform applications, we will be using gomobile to compile and bind it.
# For binding with Android Platforms: cd vpn-hole/vpnhole # use gomobile to generate .aar: gomobile bind -target='android' -o path/for/the/output/filename.aar -v path/for/vpnhole.go For example: # Here pwd is path/vpn-hole/vpnhole gomobile bind -target='android' -o vpn-hole.aar -v # Similarly, GoMobile can be used to compile for other platforms like iOS (XCode is required): gomobile bind -target='ios' -o path/for/the/output/filename.framework -v path/for/vpnhole.go
This project is released under GNU GPLv3 License.See LICENSE file for details.
We found that 0xacab.org/leap/vpn-hole demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 0 open source maintainers collaborating on the project.
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