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[translated by firmianay]Network Analysis: How To Install Bro On Ubuntu 16.04
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Network Analysis: How To Install Bro On Ubuntu 16.04
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============================================================
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[][4]
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### Introduction: Bro Network Analysis Framework
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Bro is an open source network analysis framework with a focus on network security monitoring. It is the result of 15 years of research, widely used by major universities, research labs, supercomputing centers and many open-science communities. It is developed mainly at the International Computer Science Institute, in Berkeley, and the National Center for Supercomputing Applications, in Urbana-Champaign.
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Bro has various features, including the following:
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* Bro’s scripting language enables site-specific monitoring policies
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* Targeting of high-performance networks
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* Analyzers for many protocols, enabling high-level semantic analysis at the application level
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* It keeps extensive application-layer stats about the network it monitors.
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* Bro interfaces with other applications for real-time exchange of information
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* It comprehensively logs everything and provides a high-level archive of a network’s activity.
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This tutorial explains how to build from source and install Bro on an Ubuntu 16.04 Server.
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### Prerequisites
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Bro has many dependencies:
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* Libpcap ([http://www.tcpdump.org][2])
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* OpenSSL libraries ([http://www.openssl.org][3])
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* BIND8 library
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* Libz
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* Bash (required for BroControl)
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* Python 2.6+ (required for BroControl)
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Building from source requires also:
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* CMake 2.8+
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* Make
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* GCC 4.8+ or Clang 3.3+
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* SWIG
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* GNU Bison
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* Flex
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* Libpcap headers
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* OpenSSL headers
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* zlib headers
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### Getting Started
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First of all, install all the required dependencies, by executing the following command:
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```
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# apt-get install cmake make gcc g++ flex bison libpcap-dev libssl-dev python-dev swig zlib1g-dev
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```
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#### Install GeoIP Database for IP Geolocation
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Bro depends on GeoIP for address geolocation. Install both the IPv4 and IPv6 versions:
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```
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$ wget http://geolite.maxmind.com/download/geoip/database/GeoLiteCity.dat.gz
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$wget http://geolite.maxmind.com/download/geoip/database/GeoLiteCityv6-beta/GeoLiteCityv6.dat.gz
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```
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Decompress both archives:
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```
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$ gzip -d GeoLiteCity.dat.gz
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$ gzip -d GeoLiteCityv6.dat.gz
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```
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Move the decompressed files to `/usr/share/GeoIP` directory:
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```
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# mvGeoLiteCity.dat /usr/share/GeoIP/GeoIPCity.dat
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# mv GeoLiteCityv6.dat /usr/share/GeoIP/GeoIPCityv6.dat
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```
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Now, it’s possible to build Bro from source.
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### Build Bro
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The latest Bro development version can be obtained through `git` repositories. Execute the following command:
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```
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$ git clone --recursive git://git.bro.org/bro
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```
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Go to the cloned directory and simply build Bro with the following commands:
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```
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$ cd bro
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$ ./configure
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$ make
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```
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The make command will require some time to build everything. The exact amount of time, of course, depends on the server performances.
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The `configure` script can be executed with some argument to specify what dependencies you want build to, in particular the `--with-*` options.
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### Install Bro
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Inside the cloned `bro` directory, execute:
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```
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# make install
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```
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The default installation path is `/usr/local/bro`.
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### Configure Bro
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Bro configuration files are located in the `/usr/local/bro/etc` directory. There are three files:
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* `node.cfg`, used to configure which node (or nodes) to monitor.
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* `broctl.cfg`, the BroControl configuration file.
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* `networks.cgf`, containing a list of networks in CIDR notation.
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#### Configure Mail Settings
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Open the `broctl.cfg` configuration file:
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```
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# $EDITOR /usr/local/bro/etc/broctl.cfg
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```
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Look for the **Mail Options** section, and edit the `MailTo` line as follow:
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```
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# Recipient address for emails sent out by Bro and BroControl
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MailTo = admin@example.com
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```
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Save and close. There are many other options, but in most cases the defaults are good enough.
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#### Choose Nodes To Monitor
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Out of the box, Bro is configured to operate in the standalone mode. In this tutorial we are doing a standalone installation, so it’s not necessary to change very much. However, look at the `node.cfg` configuration file:
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```
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# $EDITOR /usr/local/bro/etc/node.cfg
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```
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In the `[bro]` section, you should see something like this:
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```
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[bro]
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type=standalone
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host=localhost
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interface=eth0
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```
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Make sure that the interface matches the public interface of the Ubuntu 16.04 server.
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Save and exit.
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### Configure Node’s Networks
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The last file to edit is `network.cfg`. Open it with a text editor:
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```
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# $EDITOR /usr/local/bro/etc/networks.cfg
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```
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By default, you should see the following content:
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```
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# List of local networks in CIDR notation, optionally followed by a
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# descriptive tag.
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# For example, "10.0.0.0/8" or "fe80::/64" are valid prefixes.
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10.0.0.0/8 Private IP space
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172.16.0.0/12 Private IP space
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192.168.0.0/16 Private IP space
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```
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Delete the three entries (which are just example for how to use this file), and enter the public and private IP space of your server, in the format:
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```
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X.X.X.X/X Public IP space
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X.X.X.X/X Private IP space
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```
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Save and exit.
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### Manage Bro Installation with BroControl
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Managing Bro requires using BroControl, which comes in form of an interactive shell and a command line tool. Start the shell with:
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```
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# /usr/local/bro/bin/broctl
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```
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To use as a command line tool, just pass an argument to the previous command, for example:
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```
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# /usr/local/bro/bin/broctl status
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```
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This will check Bro’s status, by showing output like:
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```
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Name Type Host Status Pid Started
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bro standalone localhost running 6807 20 Jul 12:30:50
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```
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### Conclusion
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This concludes the Bro’s installation tutorial. We used the source based installation because it is the most efficient way to obtain the latest version available, however this network analysis framework can also be downloaded in pre-built binary format.
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See you next time!
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--------------------------------------------------------------------------------
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via: https://www.unixmen.com/how-to-install-bro-ubuntu-1604/
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作者：[ Giuseppe Molica][a]
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译者：[译者ID](https://github.com/译者ID)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]:https://www.unixmen.com/author/tutan/
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[1]:https://www.unixmen.com/author/tutan/
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[2]:http://www.tcpdump.org/
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[3]:http://www.openssl.org/
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[4]:https://www.unixmen.com/wp-content/uploads/2017/07/brologo.jpg
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@ -0,0 +1,244 @@
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网络分析利器：在 Ubuntu 16.04 上安装 Bro
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============================================================
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[][4]
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### 简介：Bro 网络分析框架
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Bro是一个开源网络分析框架，侧重于网络安全监控。这是一项长达 15 年的研究成果，被各大学、研究实验室、超级计算机中心和许多开放科学界广泛使用。它主要由伯克利国际计算机科学研究所和 Urbana-Champaign 国家超级计算机应用中心开发。
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Bro 的功能包括：
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* Bro 的脚本语言支持特定站点的监控策略
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* 针对高性能网络
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* 分析器支持许多协议，可以在应用层面实现高级语义分析
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* 它保留了关于其监视的网络的广泛应用层统计信息
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* Bro 能够与其他应用程序接口实时地交换信息
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* 它的日志全面地记录一切信息，并提供网络活动的高级存档
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本教程将介绍如何从源代码构建，并在 Ubuntu 16.04 服务器上安装 Bro。
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### 准备工作
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Bro 有许多依赖文件:
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* Libpcap ([http://www.tcpdump.org][2])
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* OpenSSL 库 ([http://www.openssl.org][3])
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* BIND8 库
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* Libz
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* Bash (BroControl 所需要)
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* Python 2.6+ (BroControl 所需要)
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从源代码构建还需要：
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* CMake 2.8+
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* Make
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* GCC 4.8+ or Clang 3.3+
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* SWIG
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* GNU Bison
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* Flex
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* Libpcap headers
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* OpenSSL headers
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* zlib headers
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### 入门
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首先，通过执行以下命令来安装所有必需的依赖项：
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```
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# apt-get install cmake make gcc g++ flex bison libpcap-dev libssl-dev python-dev swig zlib1g-dev
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```
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#### 安装定位 IP 地理位置的GeoIP数据库
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Bro 使用 GeoIP 的定位地理位置。安装 IPv4 和 IPv6 版本：
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```
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$ wget http://geolite.maxmind.com/download/geoip/database/GeoLiteCity.dat.gz
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$wget http://geolite.maxmind.com/download/geoip/database/GeoLiteCityv6-beta/GeoLiteCityv6.dat.gz
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```
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解压这两个压缩包：
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```
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$ gzip -d GeoLiteCity.dat.gz
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$ gzip -d GeoLiteCityv6.dat.gz
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```
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将解压后的文件移动到 `/usr/share/GeoIP` 目录下：
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```
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# mvGeoLiteCity.dat /usr/share/GeoIP/GeoIPCity.dat
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# mv GeoLiteCityv6.dat /usr/share/GeoIP/GeoIPCityv6.dat
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```
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现在，可以从源代码构建 Bro 了。
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### 构建 Bro
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最新的 Bro 开发版本可以通过 `git` 仓库获得。执行以下命令：
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```
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$ git clone --recursive git://git.bro.org/bro
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```
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转到克隆下来的目录，然后使用以下命令就可以简单地构建 Bro：
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```
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$ cd bro
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$ ./configure
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$ make
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```
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make 命令需要一些时间来构建一切。确切的时间取决于服务器的性能。
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可以使用一些参数来执行 `configure` 脚本，以指定要构建的依赖关系，特别是 `--with-*` 选项。
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### 安装 Bro
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在克隆的 `bro` 目录中执行：
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```
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# make install
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```
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默认安装路径为 `/usr/local/bro`。
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### 配置 Bro
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Bro 的配置文件位于 `/usr/local/bro/etc` 目录下。 这里有三个文件:
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* `node.cfg`，用于配置要监视的单个节点（或多个节点）。
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* `broctl.cfg`，BroControl 的配置文件。
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* `networks.cgf`，包含一个使用 CIDR 标记法表示的网络列表。
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#### 配置邮件设置
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打开 `broctl.cfg` 配置文件:
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```
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# $EDITOR /usr/local/bro/etc/broctl.cfg
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```
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查看 **Mail Options** 选项，并编辑 `MailTo` 行如下:
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```
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# Recipient address for emails sent out by Bro and BroControl
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MailTo = admin@example.com
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```
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保存并关闭。还有许多其他选项，但在大多数情况下，默认值就足够好了。
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#### 选择要监视的节点
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开箱即用，Bro 被配置为以独立模式运行。在本教程中，我们就是做一个独立的安装，所以没有必要改变。但是，也请查看 `node.cfg` 配置文件：
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```
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# $EDITOR /usr/local/bro/etc/node.cfg
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```
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在 `[bro]` 部分，你应该看到这样的东西：
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```
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[bro]
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type=standalone
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host=localhost
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interface=eth0
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```
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请确保接口与 Ubuntu 16.04 服务器的公共接口相匹配。
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保存并退出。
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### 配置监视节点的网络
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最后一个要编辑的文件是 `network.cfg`。使用文本编辑器打开它：
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```
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# $EDITOR /usr/local/bro/etc/networks.cfg
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```
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默认情况下，你应该看到以下内容：
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```
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# List of local networks in CIDR notation, optionally followed by a
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# descriptive tag.
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# For example, "10.0.0.0/8" or "fe80::/64" are valid prefixes.
|
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10.0.0.0/8 Private IP space
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172.16.0.0/12 Private IP space
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192.168.0.0/16 Private IP space
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```
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删除这三个条目（这只是如何使用此文件的示例），并输入服务器的公用和专用 IP 空间，格式如下：
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```
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X.X.X.X/X Public IP space
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X.X.X.X/X Private IP space
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```
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保存并退出。
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### 使用 BroControl 管理 Bro 的安装
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管理 Bro 需要使用 BroControl，它以交互式 shell 和命令行工具的形式出现。启动 shell：
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```
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# /usr/local/bro/bin/broctl
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```
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要想使用命令行工具，只需将参数传递给上一个命令，例如：
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```
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# /usr/local/bro/bin/broctl status
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```
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这将通过显示以下的输出来检查 Bro 的状态：
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```
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Name Type Host Status Pid Started
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bro standalone localhost running 6807 20 Jul 12:30:50
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```
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### 结论
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这是一篇 Bro 的安装教程。我们使用基于源代码的安装，因为它是获得可用的最新版本的最有效的方法，但是该网络分析框架也可以下载预构建的二进制格式文件。
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下次见！
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||||
--------------------------------------------------------------------------------
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||||
|
||||
via: https://www.unixmen.com/how-to-install-bro-ubuntu-1604/
|
||||
|
||||
作者：[ Giuseppe Molica][a]
|
||||
译者：[firmianay](https://github.com/firmianay)
|
||||
校对：[校对者ID](https://github.com/校对者ID)
|
||||
|
||||
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
|
||||
|
||||
[a]:https://www.unixmen.com/author/tutan/
|
||||
[1]:https://www.unixmen.com/author/tutan/
|
||||
[2]:http://www.tcpdump.org/
|
||||
[3]:http://www.openssl.org/
|
||||
[4]:https://www.unixmen.com/wp-content/uploads/2017/07/brologo.jpg
|
||||
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