This DNS server bypasses the kernel. It has it's own TCP/IP stack that interacts directly with the network adapter. It's designed to service DNS requests at rates of 10 million per second.
Currently it is in "prototype" stage. There is much that almost works, but will still take some effort to finish.
On Debian/Ubuntu, it goes something like this:
$ git clone https://github.com/robertdavidgraham/robdns
$ cd robdns
$ make
$ make regress
This puts the program in the robdns/bin
subdirectory. You'll have to
manually copy it to something like /usr/local/bin
if you want to
install it elsewhere on the system.
While Linux is the primary target platform, the code runs well on many other systems. Here's some additional build info:
- Windows w/ Visual Studio: use the VS10 project
- Windows w/ MingGW: just type
make
- Windows w/ cygwin: won't work
- Mac OS X /w XCode: use the XCode4 project
- Mac OS X /w cmdline: just type
make
- FreeBSD: type
gmake
- other: I don't know, don't care
The easiest way to run this server is simply to run it on the command-line with one or more DNS zone-files:
# robdns example.zone
The zone file is assumed to be in standard BIND9 format starting with an SOA record, and containing only records/glue within the zone.
By default, this will use the IP address of the primary network adapter. This causes some difficulties, because incoming packets will be sent both to the normal network stack and to this program. For best results, use a different network address not used by another machine on the local subnet.
# robdns example.con 192.168.1.222
To verify that it's working, use the dig
tool from another machine:
$ dig chaos txt version.bind @192.168.1.122
This should return a record with the value of robdns/1
. Then, try normal
DNS requests, such as:
$ dig ns1.example.com @192.168.1.122
There is a sample example.zone
file to test with in the top directory. Or,
consider getting a copy of the com.zone
file (8-gigabytes) to test with.
This server has no particular features at this time, other than bypassing the kernel.
This tool created by Robert Graham: email: robert_david_graham@yahoo.com twitter: @ErrataRob