dns4java

This project was born out of a need to have more finer grain control over Java's DNS subsystem.

License	The Apache Software License, Version 2.0
GroupId	com.openpojo
ArtifactId	dns4java
Last Version	0.0.1
Release Date	Feb 27, 2018
Type	jar
Description	dns4java This project was born out of a need to have more finer grain control over Java's DNS subsystem.
Project URL	https://github.com/oshoukry/dns4java
Source Code Management	https://github.com/oshoukry/dns4java

Download dns4java

Filename	Size
dns4java-0.0.1.pom
dns4java-0.0.1.jar	22 KB
dns4java-0.0.1-sources.jar	22 KB
dns4java-0.0.1-javadoc.jar	159 KB

How to add to project

Apache Maven

<!-- https://jarcasting.com/artifacts/com.openpojo/dns4java/ -->
<dependency>
    <groupId>com.openpojo</groupId>
    <artifactId>dns4java</artifactId>
    <version>0.0.1</version>
</dependency>

Gradle Groovy

// https://jarcasting.com/artifacts/com.openpojo/dns4java/
implementation 'com.openpojo:dns4java:0.0.1'

Gradle Kotlin

// https://jarcasting.com/artifacts/com.openpojo/dns4java/
implementation ("com.openpojo:dns4java:0.0.1")

Apache Buildr

'com.openpojo:dns4java:jar:0.0.1'

Apache Ivy

<dependency org="com.openpojo" name="dns4java" rev="0.0.1">
  <artifact name="dns4java" type="jar" />
</dependency>

Groovy Grape

@Grapes(
@Grab(group='com.openpojo', module='dns4java', version='0.0.1')
)

Scala SBT

libraryDependencies += "com.openpojo" % "dns4java" % "0.0.1"

Leiningen

[com.openpojo/dns4java "0.0.1"]

Dependencies

compile (2)

Group / Artifact	Type	Version
com.openpojo : openpojo	jar	0.8.9
dnsjava : dnsjava	jar	2.1.8

test (2)

Group / Artifact	Type	Version
junit : junit	jar	4.12
org.hamcrest : hamcrest-all	jar	1.3

Project Modules

There are no modules declared in this project.

DNSControl

Simplified control over DNS routing in JAVA

When you need more control on which DNS servers to use in Java for certain hosts or domains.

Quick startup

Create a DNS Control configuration file as such:

# Selection order is more specific wins
# For example, if you have a host, domain, and default override, they will be processed in that order.
# The left hand side is the destination to override, the right hand is the list of dns servers to use.
# Left hand entries should be unique, one entry per destination.
# Don't need to suffix your entries with "." dot, this is implied, meaning, default domain will not be appended.

# Setup default DNS servers, this is optional.
# If not defined, the current host DNS servers will be used if unset (i.e. resolv.conf).
.=10.0.0.1,10.0.0.2

# Override DNS lookups for specific hosts
www.openpojo.com=10.1.1.1

# Override DNS lookups for whole domains (starts with "." dot),
# This will override lookups for *.openpojo.com (i.e. some.host.openpojo.com)
.openpojo.com=10.0.2.2

# Suppress any queries that you'd like to never resolve
hiddenhost.openpojo.com=

# Finally if you want to use your current system's DNS servers without having to know the entries.
unchanged.resolution.openpojo.com=SYSTEM

startup your JVM passing NameService provider as well as DNS routing file

java -Dsun.net.spi.nameservice.provider.1=dns,dnscontrol \
     -Ddnscontrol.conf.file=/path/where/dns_control_file

If you have a hosts file you'd like to also use you may use the jdk.net.hosts.file property and add it to your startup parameters

java -Dsun.net.spi.nameservice.provider.1=dns,dnscontrol \
     -Ddnscontrol.conf.file=/path/where/dns_control_file \
     -Djdk.net.hosts.file=/path/where/hosts_file

Notes:

1. The default value for dnscontrol.conf.file is /dnscontrol.conf on root of the classpath.
2. The Hosts file is the highest priority when it comes to resolution.

Environment

Currently DNSControl runs on Java 1.7 & 1.8.

Builds on the functionality provided by dnsjava.

Versions

Version
0.0.1 Feb 27, 2018