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I have two hosts, one named lower case 'server01', the other named upper case 'SERVER01'. When I do a search such as "foo | dedup host", I only get either server01 or SERVER01, and never both, because apparently dedup is performing case insensitive comparisons. Is there a way to enable case sensitivity?
Thanks much in Advance.
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Generally (from a networking perspective) you shouldn't have two hosts with the same hostname. However, since you do, you could use regex to determine if the hostname is upper or lowercase. For example:
... | rex field=host "(?P<upperHost>[A-Z0-9]+)"| eval hostCase=if(isnotnull(upperHost), "Upper", "Lower")
Then you could run the dedup command against both the host name and the value of hostCase:
... | dedup host, hostCase
That should leave both hostnames in the results.
PS: I havn't been able to test this so the isnotnull() may not work. Instead you may want to use upperHost="".
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dedup really needs to have an in-case sensitivity option
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Generally (from a networking perspective) you shouldn't have two hosts with the same hostname. However, since you do, you could use regex to determine if the hostname is upper or lowercase. For example:
... | rex field=host "(?P<upperHost>[A-Z0-9]+)"| eval hostCase=if(isnotnull(upperHost), "Upper", "Lower")
Then you could run the dedup command against both the host name and the value of hostCase:
... | dedup host, hostCase
That should leave both hostnames in the results.
PS: I havn't been able to test this so the isnotnull() may not work. Instead you may want to use upperHost="".
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