GRDNS : The easy to setup DNS caching server

In memory dns caching server.

Basic Info

• Built using GoLang and redis.
• Clean and effective code
• Hash based database storing records (redis)
• Multi threading done right
• Using low overhead libraries wherever possible
• Using in memory data as much as possible when also maintaining stability

Building locally :

Note : this project is built for the linux system, compatibility with windows is not confirnmed(This can be an issue, propose if you wish to). To run this project, you need to have golang and redis installed. MacOS users can run brew install go redis to install go and redis

After getting the dependencies, you can run:

$ ./run.sh

Should compile and start the DNS server.

Testing locally :

• A single resolve test can be done like so :

$ dig @0.0.0.0 google.com

It's best you run the above command twice. This is because the first resolve doesn't hit the cache, second will.

• A performance test can be done like so after starting the DNS server (needs dnsperf installed before hand):

./test.sh --10mtest

Maintainers in charge :

Navin Shrinivas Mukund Deepak

Performance :

• Down below we see comparision to cloudflare and google dns server (which note runs on very powerful hardware, mine runs simply on my computer) :
• GRDNS : ~110QP/s || google's DNS : ~360QP/s || cloudflare's DNS : 220QP/s
• images :