记录：CentOS7中安装elasticsearch(并开放端口让外界访问)
当前环境：CentOS7、JDK1.8、elasticsearch-7.4.0-linux-x86_64.tar.gz1.下载elasticsearch-7.4.0-linux-x86_64.tar.gz注意一定不要使用root账户进行下载wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.4.0...
