Matching a Dollar Sign with a Wildcard using KQL

Elastic Stack Kibana
1

Hi,

Hoping you guys are safe and well
I'm trying to exclude any username that has $ at the end of it using Kibnana Query Language
I've done a lot of testing with the following, but it doesn't seem to work

and not user.name: *$

Is there anyway to achieve that? I've tried to escape the $ by using /$ or `$ but that's not working as well

Thanks

Hosam,

2

Hey @hpicass0,

I think I'll need more information to help you.

I tried with the following dataset, and I was able to use the $ as part of a wildcard filter:

PUT /test
{
  "mappings": {
    "properties": {
      "@timestamp":{
        "type":"date"
      },
      "interface":{
        "type":"keyword"
      },
      "hostname":{
        "type":"keyword"
      },
      "metric":{
        "type":"integer"
      }
    }
  }
}

PUT /test/_doc/1
{
  "@timestamp":"2020-12-13T14:54:00",
  "interface":"eth0",
  "hostname":"hostX",
  "metric":20
}

PUT /test/_doc/2
{
  "@timestamp":"2020-12-13T14:55:00",
  "interface":"eth0",
  "hostname":"hostX",
  "metric":60
}

PUT /test/_doc/3
{
  "@timestamp":"2020-12-13T14:54:00",
  "interface":"eth0",
  "hostname":"hostZ",
  "metric":100
}

PUT /test/_doc/4
{
  "@timestamp":"2020-12-13T14:55:00",
  "interface":"eth0",
  "hostname":"hostZ",
  "metric":110
}

PUT /test/_doc/5
{
  "@timestamp":"2020-12-13T14:54:00",
  "interface":"eth1",
  "hostname":"hostZ",
  "metric":10
}

PUT /test/_doc/6
{
  "@timestamp":"2020-12-13T14:54:00",
  "interface":"eth1",
  "hostname":"hostZ",
  "metric":60
}

PUT /test/_doc/7
{
  "@timestamp":"2020-12-13T14:54:00",
  "interface":"eth1$",
  "hostname":"hostZ",
  "metric":60
}

Filter: not interface : *$

image
image3788×1734 424 KB

Are there potentially other parts of your query that are including this document? As a test, can you write your filter to only check against user.name and no other field?