关于Nginx配置多个tomcat启动时报错要注意的两个配置问题（我用的tomcat7）

1.启动时tomcat报错java.lang.IllegalArgumentException: The character [_] is never valid in a domain name.

2.Nginx中error.log中报错no live upstreams while connecting to upstream, client: 127.0.0.1, server: localhost, request: "GET /test HTTP/1.1", upstream: "http://serverMore/test", host: "localhost"