CentOS7下部署开源网络流量回溯分析系统Moloch

CentOS7下部署开源网络流量回溯分析系统Moloch

Moloch 是一个由AOL开源的，能够大规模的捕获IPv4数据包(PCAP)、索引和数据库系统，由以下三个部分组成：

1）capture ：绑定interface运行的单线程C语言应用

2）viewer ：运行在capture主机上的node.js web应用

3）elasticsearch : moloch的数据检索驱动

1、下载Moloch CentOS7版本的RPM包

https://molo.ch/downloads

https://s3.amazonaws.com/files.molo.ch/builds/centos-7/moloch-2.4.0-1.x86_64.rpm

另外下载elasticsearch Linux系统的RPM包 https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.9.1-x86_64.rpm

2、上传jdk，配置jdk环境变量

tar -zxvf jdk-8u261-linux-x64.tar.gz -C /usr/local/
cd /usr/local/
mv jdk1.8.0_261 jdk
echo "export JAVA_HOME=/usr/local/jdk" >>  /etc/profile.d/java8.sh
echo "export PATH=$PATH:$JAVA_HOME/bin" >>  /etc/profile.d/java8.sh
echo "export CLASSPATH=.:$JAVA_HOME/jre/lib:$JAVA_HOME/lib:$JAVA_HOME/lib/tools.jar" >>  /etc/profile.d/java8.sh
source /etc/profile.d/java8.sh

3、安装并配置elasticsearch

1)调整JVM内存大小

cd /opt/
rpm -ivh elasticsearch-7.9.1-x86_64.rpm
cd  /etc/elasticsearch/
vi jvm.options

2)修改elasticsearch配置文件

cd /data
mkdir /data/elasticsearch
mkdir -p /data/log/elasticsearch
chown -R elasticsearch:elasticsearch elasticsearch
chown -R elasticsearch:elasticsearch log

vi /etc/elasticsearch/elasticsearch.yml
#修改如下几个地方
path.data: /data/elasticsearch
path.logs: /data/log/elasticsearch
network.host:10.20.90.46
http.port:9200
discovery.seed_hosts: ["10.20.90.46"]

3)启动elasticsearch

systemctl daemon-reload
systemctl enable elasticsearch.service
systemctl start elasticsearch.service

最后可以curl http://IP:9200测试服务是否正常运行

4、安装Moloch

yum localinstall moloch-2.4.0-1.x86_64.rpm

5、Moloch初始化配置

cd /data/moloch/bin
./Configure

选择需要监控的网卡也就是你的镜像流量对应的网卡

/data/moloch/db/db.pl http://10.20.90.46:9200 init

出现如下报错时 Couldn't GET http://10.20.90.46:9200/_cluster/health the http status code is 503 are you sure elasticsearch is running/reachable? at /data/moloch/db/db.pl line 277.

解决办法如下

vi /etc/elasticsearch/elasticsearch.yml
修改配置文件如下行，配置node.name及cluster.initial_master_nodes，然后重启elasticsearch
node.name: es-node
cluster.initial_master_nodes: ["es-node"]
systemctl restart elasticsearch.service

继续初始化配置

/data/moloch/bin/moloch_add_user.sh admin "Admin User" admin --admin
systemctl start molochcapture.service
systemctl start molochviewer.service
netstat -anp | grep 8005

6、web登录并体验Moloch

http://IP:8005，密码为之前的初始化时设置的密码

具体使用帮助可以点击猫头鹰头像

7、开启镜像网卡的混杂模式

ifconfig ens33 promisc