RandomDNS aims to improve the security, privacy and anonymity of DNSCrypt. It can randomize the server choice at runtime and can rotate it frequently.
What is DNSCrypt?
DNSCrypt is a protocol that authenticates communications between a DNS client and a DNS resolver. It prevents DNS spoofing. It uses cryptographic signatures to verify that responses originate from the chosen DNS resolver and haven’t been tampered with.
More informations at https://dnscrypt.org/
Features of RandomDNS
- Randomize the provider at runtime
- Use (-E)phemeral keys option
- Securely run DNSCrypt proxy by verifying its hash, copying it in /tmp dir with restricted permissions and launching it as "nobody" user (if reverse proxy is enabled)
- Watch the proxy process and relaunch it if it dies
- Can run multiple instances of DNSCrypt and load balance the traffic (EdgeDNS)
- Have in-memory caching of DNS requests along with Consistent Hashing (EdgeDNS)
- Can filter the server list by protocols, country and much more
- Rotate the server with a defined time (default: 10 minutes)
- Support DNSSEC (EdgeDNS)
How to use it
- Update Brew:
brew update && brew upgrade
- Install DNSCrypt + Node + NPM:
brew install dnscrypt-proxy node npm
- Download and run RandomDNS:
npm install -g randomdns && sudo DEBUG=* randomdns
- Set your DNS settings to 127.0.0.1
___ __ ___ _ ______ / _ /___ ____ ___/ /__ __ _ / _ // |/ / __/ / , _/ _ `/ _ // _ / _ // ' // // / // / /_/|_|/_,_/_//_//_,_//___/_/_/_/____/_/|_/___/ Usage: run [options] [file] Options: -h, --help output usage information -V, --version output the version number -L, --listenOn [string] Listen on a specific interface/port [default: 127.0.0.1:53] -R, --rotationTime [int] Define the time to wait before rotating the server (in seconds) [default: 600 seconds] -P, --reverseProxy [bool] Enable EdgeDNS reverse proxy [default: false] --reverseProxyChildStartPort [int] Where childrens (dnscrypt-proxy processes) should start incrementing the port? (will work only if reverseProxy is enabled) [default: 51000] -T, --threads [int] Number of childs to spawn, set to 1 to disable load balacing (will work only if reverseProxy is enabled) [default: 4] -F, --filters [string] Use filters [default: IPv6=false;] --filters-help Get full list of available filters. -b, --binaryDNSCryptFile [string] Use custom DNSCrypt binary, will not work until --binaryDNSCryptFileSignature is changed. --binaryDNSCryptFileSignature [string] SHA512 hash of the DNSCrypt binary. -b, --binaryEdgeDNSFile [string] Use custom EdgeDNS binary, will not work until --binaryEdgeDNSFileSignature is changed. --binaryEdgeDNSFileSignature [string] SHA512 hash of the EdgeDNS binary. -r, --resolverListFile [string] Use custom DNSCrypt resolver list file, will not work until --resolverListFileSignature is changed. --resolverListFileSignature [string] SHA512 hash of the DNSCrypt resolver list file.
- Add filters: by country, by port
- Scramble monitoring of DNS traffic by sending fake DNS requests randomly
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