下载安装公钥：
rpm --import https://artifacts.elastic.co/GPG-KEY-elasticsearch
创建logstash.repo: vim /etc/yum.repos.d/logstatsh.repo
[logstash-5.x] name=Elastic repository for 5.x packages baseurl=https://artifacts.elastic.co/packages/5.x/yum gpgcheck=1 gpgkey=https://artifacts.elastic.co/GPG-KEY-elasticsearch enabled=1 autorefresh=1 type=rpm-md
使用yum安装logstash
sudo yum install logstash
配置 vim /etc/logstash/conf.d/logstash-syslog.conf
重启 logstash 应用变更 service logstash restart
打开浏览器访问 127.0.0.1:5601
原文：http://41084.blog.51cto.com/31084/1953128