解决ubuntu服务器中的各类问题

1.ubuntu16.04终端命令报错，就会显示ModuleNotFoundError: No module named 'gdbm'：

解决办法：sudo apt-get install python3.6-gdbm

2.elasticsearch6.3.2下载地址：

https://www.elastic.co/downloads/past-releases/elasticsearch-6-3-2

3.ik热分词方案：

https://blog.csdn.net/sun_duolong/article/details/79212618

4.es配置同义词：

https://www.cnblogs.com/wangchuanfu/p/7452818.html

5.ubuntu配置tomcat:

https://www.cnblogs.com/sevenun/p/5531159.html

6.ubuntu配置jdk:

https://www.linuxidc.com/Linux/2015-01/112030.htm