topic Re: rex in Splunk Search

rex

rkris — Sat, 18 Jul 2020 07:57:15 GMT

I'm trying to extract this line from my linux logs in splunk using rex but I'm not sure how to extract it

TCP 191.174.4.187:80 -> 10.10.50.26:100

Re: rex

isoutamo — Sat, 18 Jul 2020 09:06:03 GMT

You could try this:

index=_internal
| head 1
| eval _raw="TCP 191.174.4.187:80 -> 10.10.50.26:100"
| rex "TCP\s+(?<src>[^:]+):(?<src_port>[^\s]+)\s+->\s+(?<dst>[^:]+):(?<dst_port>[^\s]+)"

Re: rex

arjunpkishore5 — Sat, 18 Jul 2020 15:34:30 GMT

Can you post a sample of your raw data line and what you need extracted? for your question, it isn't clear, if you want one variable to extract the entire phrase or if you want to extract fields from the pasted line.