Illegal host header , invalid host

[linuxhub]

Illegal host header , invalid host
Prometheus many invalid host metrics tag
Causes too much influxDB SERIES
For example,

curl http://127.0.0.1 -H 'Host: www.linuxhub.org'
curl http://127.0.0.1 -H 'Host: test'
curl http://127.0.0.1 -H 'Host: xxx'

Record a lot of invalid hosts

[linuxhub]

产生很多乱七八糟 与 nginx service name 无关 host 到 Prometheus , 如果 Prometheus 远端存储 用了 influxDB 存储数据，时间线数量猛增，直接完爆时序数据库。
* 建议加个host正则过滤配置

[sysulq]

建议通过规范nginx配置解决这个问题

It is suggested to adjust nginx configuration to solve this problem

[panhow]

建议通过规范nginx配置解决这个问题

It is suggested to adjust nginx configuration to solve this problem

在使用Kong，Apisix等支持根据动态路由转发流量时，不可避免的会接收到特别的host

[sysulq]

建议通过规范nginx配置解决这个问题
It is suggested to adjust nginx configuration to solve this problem

在使用Kong，Apisix等支持根据动态路由转发流量时，不可避免的会接收到特别的host

嗯，这个改进可以，欢迎提PR ：）