code4craft / blackhole Goto Github PK

1.路径不能有空格,否则会报错,貌似找 zones 的时候空格后面的字符忽略了
程序路径为 D:\My Documents\GitHub\blackhole\server\bin
java.io.FileNotFoundException: D:\My\config\zones (系统找不到指定的路径。)
2.日志居然在 D:\usr\local\blackhole\cache 目录下面
我使用 msys 启动后,日志还是相同的位置
msys 下程序路径: D:\My Documents\msys\local\blackhole
cache 是不是应该放到 blackhole.jar 同级目录下呢.

最后,对这个软件赞一个!
顺便推荐一个 dns 168.95.1.1 ,速度和 8.8.8.8 差不多

初步怀疑是request=>response过程中使用DNS头部ID作为key，当此ID重复时，会返回错误的domain对应的响应体。感谢@yaniswang 的使用和反馈。

参考这个 http://repo.springsource.org/install/spring-boot-cli.rb

Log如下：

λ lei blackhole → λ git master → sudo ./blackhole.sh start
Starting blackhole...
λ lei blackhole → λ git master → Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'husbandEar': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private us.codecraft.wifesays.me.TCPSocketMonitor us.codecraft.wifesays.me.HusbandEar.tcpSocketMonitor; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'wifesaysTcpSocketMonitor' defined in URL [jar:file:/usr/local/blackhole/blackhole.jar!/spring/applicationContext-blackhole.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [us.codecraft.wifesays.me.TCPSocketMonitor]: Constructor threw exception; nested exception is java.net.BindException: Address already in use
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:287)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1106)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:294)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
at org.springframework.context.support.AbstractApplicationContext.registerBeanPostProcessors(AbstractApplicationContext.java:728)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:449)
at org.springframework.context.support.ClassPathXmlApplicationContext.(ClassPathXmlApplicationContext.java:139)
at org.springframework.context.support.ClassPathXmlApplicationContext.(ClassPathXmlApplicationContext.java:83)
at us.codecraft.blackhole.BlackHole.main(BlackHole.java:64)
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private us.codecraft.wifesays.me.TCPSocketMonitor us.codecraft.wifesays.me.HusbandEar.tcpSocketMonitor; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'wifesaysTcpSocketMonitor' defined in URL [jar:file:/usr/local/blackhole/blackhole.jar!/spring/applicationContext-blackhole.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [us.codecraft.wifesays.me.TCPSocketMonitor]: Constructor threw exception; nested exception is java.net.BindException: Address already in use
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:506)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:284)

说下我们遇到的场景，我们把BlackHole服务部署到客户的网络中，现象是访问任何域名都失败，而且把所有访问域名写到blacklist中。是不是可以说明，当地DNS被劫持或污染。

14-07-23 18:04:46,395 WARN us.codecraft.blackhole.connector.UDPConnectionWorker
(UDPConnectionWorker.java:47) ## Error processing UDP connection from /192.168.5
0.20:59460,
java.nio.channels.UnresolvedAddressException
at sun.nio.ch.Net.checkAddress(Unknown Source)
at sun.nio.ch.DatagramChannelImpl.send(Unknown Source)
at us.codecraft.blackhole.forward.MultiUDPForwarder.send(MultiUDPForward
er.java:94)
at us.codecraft.blackhole.forward.MultiUDPForwarder.forward(MultiUDPForw
arder.java:79)
at us.codecraft.blackhole.forward.MultiUDPForwarder.forward(MultiUDPForw
arder.java:51)
at us.codecraft.blackhole.connector.UDPConnectionWorker.run(UDPConnectio
nWorker.java:43)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

尝试重装java也不行

Forward的请求包不合规范，forward到114.114.114.114时，会一直没有响应。抓包看了一下，没有将UDP包按照长度截断。

之前的A记录配置，全部都转变为正则表达式并进行逐个匹配，在配置多时性能下降明显。新版本将非模糊匹配的记录直接转变为key-value类型进行强匹配，加强了性能。

使用blackhole绑定hosts的用户存在定制的需求，目前解决方案只能是：自己在本地启动blackhole。因为很多用户IP地址会发生变化，多设备之间同步不方便，因此可以提供一个在统一的server里根据不同的用户组，响应不同结果的功能。初定按照IP进行过滤，对于同一网段，也可以考虑使用MAC地址，更加方便。

如题，谢谢

加入设置 *.google.com ip 之后,
想对 code.google.com 单独设置其他的 ip
不知道能否支持,测试了下,好像目前还是不行

我遇到的，电信和联通访问8.8.8.8都是先返回错误的数据包，再有正确的数据包跟在后面。
最近用移动的网络发现，移动的DNS污染8.8.8.8只返回错误的，不返回正确的结果。一直等待正确结果直到超时。

blackhole可以设置外部DNS，但是目前外部DNS没有办法设置优先级，对于企业内网用户来说，可能希望内部DNS优先生效，所以需要给外部DNS加上优先级功能，优先使用某个DNS的结果，并进行缓存。

因为UDP本身是无连接的，在转发模式下，可以直接将：

“用户=>blackhole=>远程DNS服务器” 和“远程DNS服务器=>blackhole=>用户”两个处理过程分开。

这样可以避免在线程中等待，将线程数大大降低。同时放弃使用wait/notify的方法进行同步，提高性能。