CentOS 7下安装Logstash ELK Stack 日志管理系统（下） - sanyuanyanjin

[root@elk elk]# firewall-cmd --permanent --add-port=5601/tcp
Success
[root@elk elk]# firewall-cmd --reload
success
[root@elk elk]# firewall-cmd --list-all
public (default, active)
interfaces: eno16777984 eno33557248
sources:
services: dhcpv6-client ssh
ports: 9200/tcp 9300/tcp 5601/tcp
masquerade: no
forward-ports:
icmp-blocks:
rich rules:

3.5 安装kibana

[root@elk elk]# yum localinstall kibana-4.5.1-1.x86_64.rpm –y
[root@elk elk]# systemctl enable kibana
Created symlink from /etc/systemd/system/multi-user.target.wants/kibana.service to /usr/lib/systemd/system/kibana.service.
[root@elk elk]# systemctl start kibana

[root@elk elk]# systemctl status kibana
● kibana.service - no description given
Loaded: loaded (/usr/lib/systemd/system/kibana.service; enabled; vendor preset: disabled)
Active: active (running) since Fri 2016-05-20 15:49:02 CST; 20s ago
Main PID: 11260 (node)
CGroup: /system.slice/kibana.service
└─11260 /opt/kibana/bin/../node/bin/node /opt/kibana/bin/../src/cli

May 20 15:49:05 elk.test.com kibana[11260]: {"type":"log","@timestamp":"2016-05-20T07:49:05+00:00","tags":["status","plugin:elasticsearch...May 20 15:49:05 elk.test.com kibana[11260]: {"type":"log","@timestamp":"2016-05-20T07:49:05+00:00","tags":["status","plugin:kbn_vi...lized"}
May 20 15:49:05 elk.test.com kibana[11260]: {"type":"log","@timestamp":"2016-05-20T07:49:05+00:00","tags":["status","plugin:markdo...lized"}
May 20 15:49:05 elk.test.com kibana[11260]: {"type":"log","@timestamp":"2016-05-20T07:49:05+00:00","tags":["status","plugin:metric...lized"}
May 20 15:49:05 elk.test.com kibana[11260]: {"type":"log","@timestamp":"2016-05-20T07:49:05+00:00","tags":["status","plugin:spyMod...lized"}
May 20 15:49:05 elk.test.com kibana[11260]: {"type":"log","@timestamp":"2016-05-20T07:49:05+00:00","tags":["status","plugin:status...lized"}
May 20 15:49:05 elk.test.com kibana[11260]: {"type":"log","@timestamp":"2016-05-20T07:49:05+00:00","tags":["status","plugin:table_...lized"}
May 20 15:49:05 elk.test.com kibana[11260]: {"type":"log","@timestamp":"2016-05-20T07:49:05+00:00","tags":["listening","info"],"pi...:5601"}
May 20 15:49:10 elk.test.com kibana[11260]: {"type":"log","@timestamp":"2016-05-20T07:49:10+00:00","tags":["status","plugin:elasticsearch...May 20 15:49:14 elk.test.com kibana[11260]: {"type":"log","@timestamp":"2016-05-20T07:49:14+00:00","tags":["status","plugin:elasti...found"}
Hint: Some lines were ellipsized, use -l to show in full.

检查kibana服务运行（Kibana默认进程名：node ，端口5601）

[root@elk elk]# netstat -nltp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 909/sshd
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 1595/master
tcp 0 0 0.0.0.0:5601 0.0.0.0:* LISTEN 11260/node

修改防火墙，对外开放tcp/5601

[root@elk elk]# firewall-cmd --permanent --add-port=5601/tcp
Success
[root@elk elk]# firewall-cmd --reload
success
[root@elk elk]# firewall-cmd --list-all
public (default, active)
interfaces: eno16777984 eno33557248
sources:
services: dhcpv6-client ssh
ports: 9200/tcp 9300/tcp 5601/tcp
masquerade: no
forward-ports:
icmp-blocks:
rich rules:

这时，我们可以打开浏览器，测试访问一下kibana服务器http://192.168.30.67:5601/，确认没有问题，如下图：

在这里，我们可以修改防火墙，将用户访问80端口连接转发到5601上，这样可以直接输入网址不用指定端口了，如下:

[root@elk elk]# firewall-cmd --permanent --add-forward-port=port=80:proto=tcp:toport=5601[root@elk elk]# firewall-cmd --reload[root@elk elk]# firewall-cmd --list-all
public (default, active)
interfaces: eno16777984 eno33557248
sources:
services: dhcpv6-client ssh
ports: 9200/tcp 9300/tcp 5601/tcp
masquerade: no
forward-ports: port=80:proto=tcp:toport=5601:toaddr=
icmp-blocks:
rich rules:

3.6 安装logstash，以及添加配置文件

[root@elk elk]# yum localinstall logstash-2.3.2-1.noarch.rpm –y

生成证书

[root@elk elk]# cd /etc/pki/tls/[root@elk tls]# lscert.pem certs misc openssl.cnf private

[root@elk tls]# openssl req -subj '/CN=elk.test.com/' -x509 -days 3650 -batch -nodes -newkey rsa:2048 -keyout private/logstash-forwarder.key -out
certs/logstash-forwarder.crt
Generating a 2048 bit RSA private key
...................................................................+++......................................................+++writing new private key to 'private/logstash-forwarder.key'-----

之后创建logstash 的配置文件。如下：

View Code

启动logstash，并检查端口，配置文件里，我们写的是5000端口

[root@elk conf.d]# systemctl start logstash
[root@elk elk]# /sbin/chkconfig logstash on
[root@elk conf.d]# netstat -ntlp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 909/sshd
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 1595/master
tcp 0 0 0.0.0.0:5601 0.0.0.0:* LISTEN 11260/node
tcp 0 0 0.0.0.0:514 0.0.0.0:* LISTEN 618/rsyslogd
tcp6 0 0 :::5000 :::* LISTEN 12819/java
tcp6 0 0 :::3306 :::* LISTEN 1270/mysqld
tcp6 0 0 127.0.0.1:9200 :::* LISTEN 10430/java
tcp6 0 0 ::1:9200 :::* LISTEN 10430/java
tcp6 0 0 127.0.0.1:9300 :::* LISTEN 10430/java
tcp6 0 0 ::1:9300 :::* LISTEN 10430/java
tcp6 0 0 :::22 :::* LISTEN 909/sshd
tcp6 0 0 ::1:25 :::* LISTEN 1595/master
tcp6 0 0 :::514 :::* LISTEN 618/rsyslogd

修改防火墙，将5000端口对外开放。

[root@elk ~]# firewall-cmd --permanent --add-port=5000/tcp
success
[root@elk ~]# firewall-cmd --reload
success
[root@elk ~]# firewall-cmd --list-all
public (default, active)
interfaces: eno16777984 eno33557248
sources:
services: dhcpv6-client ssh
ports: 9200/tcp 9300/tcp 5000/tcp 5601/tcp
masquerade: no
forward-ports: port=80:proto=tcp:toport=5601:toaddr=
icmp-blocks:
rich rules:

3.7 修改elasticsearch 配置文件

查看目录，创建文件夹es-01（名字不是必须的）,logging.yml是自带的，elasticsearch.yml是创建的文件，内如见下：

[root@elk ~]# cd /etc/elasticsearch/[root@elk elasticsearch]# tree
.
├── es-01│ ├── elasticsearch.yml
│ └── logging.yml
└── scripts

[root@elk elasticsearch]# cat es-01/elasticsearch.yml
----http:
port: 9200network:
host: elk.test.com
node:
name: elk.test.com
path:
data: /etc/elasticsearch/data/es-01

3.8 重启elasticsearch、logstash服务。

3.9 将 fiebeat安装包拷贝到 rsyslog、nginx 客户端上

[root@elk elk]# scp filebeat-1.2.3-x86_64.rpm root@rsyslog.test.com:/root/elk
[root@elk elk]# scp filebeat-1.2.3-x86_64.rpm root@nginx.test.com:/root/elk
[root@elk elk]# scp /etc/pki/tls/certs/logstash-forwarder.crt rsyslog.test.com:/root/elk
[root@elk elk]# scp /etc/pki/tls/certs/logstash-forwarder.crt nginx.test.com:/root/elk

客户端部署filebea

filebeat客户端是一个轻量级的，从服务器上的文件收集日志资源的工具，这些日志转发到处理到Logstash服务器上。该Filebeat客户端使用安全的Beats协议与Logstash实例通信。lumberjack协议被设计为可靠性和低延迟。Filebeat使用托管源数据的计算机的计算资源，并且Beats输入插件尽量减少对Logstash的资源需求。

4.1.（node1）安装filebeat，拷贝证书，创建收集日志配置文件

[root@rsyslog elk]# yum localinstall filebeat-1.2.3-x86_64.rpm -y
#拷贝证书到本机指定目录中
[root@rsyslog elk]# cp logstash-forwarder.crt /etc/pki/tls/certs/.
[root@rsyslog elk]# cd /etc/filebeat/[root@rsyslog filebeat]# tree
.
├── conf.d
│ ├── authlogs.yml
│ └── syslogs.yml
├── filebeat.template.json
└── filebeat.yml1 directory, 4 files

修改的文件有3个，filebeat.yml，是定义连接logstash 服务器的配置。conf.d目录下的2个配置文件是自定义监控日志的，下面看下各自的内容：

filebeat.yml

View Code

authlogs.yml & syslogs.yml

View Code

修改完成后，启动filebeat服务

[root@rsyslog filebeat]# service filebeat start
Starting filebeat: [ OK ]
[root@rsyslog filebeat]# chkconfig filebeat on

[root@rsyslog filebeat]# netstat -altp
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 localhost:25151 *:* LISTEN 6230/python2
tcp 0 0 *:ssh *:* LISTEN 5509/sshd
tcp 0 0 localhost:ipp *:* LISTEN 1053/cupsd
tcp 0 0 localhost:smtp *:* LISTEN 1188/master
tcp 0 0 rsyslog.test.com:51155 elk.test.com:commplex-main ESTABLISHED 7443/filebeat
tcp 0 52 rsyslog.test.com:ssh 192.168.30.65:10580 ESTABLISHED 7164/sshd
tcp 0 0 *:ssh *:* LISTEN 5509/sshd
tcp 0 0 localhost:ipp *:* LISTEN 1053/cupsd
tcp 0 0 localhost:smtp *:* LISTEN 1188/master

如果连接不上，状态不正常的话，检查下客户端的防火墙。

4.2. （node2）安装filebeat，拷贝证书，创建收集日志配置文件

[root@nginx elk]# yum localinstall filebeat-1.2.3-x86_64.rpm -y
[root@nginx elk]# cp logstash-forwarder.crt /etc/pki/tls/certs/.
[root@nginx elk]# cd /etc/filebeat/[root@nginx filebeat]# tree
.
├── conf.d
│ ├── nginx.yml
│ └── syslogs.yml
├── filebeat.template.json
└── filebeat.yml1 directory, 4 files

修改filebeat.yml 内容如下：

View Code

syslogs.yml & nginx.yml

View Code

修改完成后，启动filebeat服务，并检查filebeat进程

[root@nginx filebeat]# service filebeat start
Starting filebeat: [ OK ]
[root@nginx filebeat]# chkconfig filebeat on

[root@nginx filebeat]# netstat -aulpt
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 *:ssh *:* LISTEN 1076/sshd
tcp 0 0 localhost:smtp *:* LISTEN 1155/master
tcp 0 0 *:http *:* LISTEN 1446/nginx
tcp 0 52 nginx.test.com:ssh 192.168.30.65:11690 ESTABLISHED 1313/sshd
tcp 0 0 nginx.test.com:49500 elk.test.com:commplex-main ESTABLISHED 1515/filebeat
tcp 0 0 nginx.test.com:ssh 192.168.30.65:6215 ESTABLISHED 1196/sshd
tcp 0 0 nginx.test.com:ssh 192.168.30.65:6216 ESTABLISHED 1200/sshd
tcp 0 0 *:ssh *:* LISTEN 1076/sshd

通过上面可以看出，客户端filebeat进程已经和 elk 服务器连接了。下面去验证。

五、验证，访问kibana http://192.168.30.67

查看下两台机器的系统日志：node1的

node2的nginx 访问日志

体验

之前在学习rsyslog +LogAnalyzer，然后又学了这个之后，发现elk 不管从整体系统，还是体验都是不错的，而且更新快。后续会继续学习，更新相关的监控过滤日志方法，日志分析，以及使用kafka 来进行存储的架构。