从maven将此文件下载到/ home /
xxxx：https :
//oss.sonatype.org/content/repositories/releases/com/floragunn/search-
guard-5/5.2.0-11/search-guard-5-5.2
.0-11.zip
安装它：
bin/elasticsearch-plugin install -b file:///home/xxxx/search-guard-5-5.2.0-11.zip
其他版本可在此处获得：https
:
//oss.sonatype.org/content/repositories/releases/com/floragunn/
