bro-cut command ใช้เป็นตัว parse เพื่อแยกข้อความออกมา จาก content รวม
Bro, a powerful network security monitor, which by default churns out ASCII logs in a easily parseable whitespace separated (column) format from network traffic, live or PCAP. Because this logs are in the aforementioned format it makes them very hackable with the standard unix toolset. If you’re an experienced unix user with ample networking knowledge you probably have all the know-how to immediately pull useful data from Bro logs. If you’re not familiar with the standard unix toolset e.g. cat, grep, awk, uniq, sort, head, tailetc., digging through Bro logs is a great way to learn these tools and also to gain a better understanding of network traffic.
https://www.bro.org/sphinx-git/logs/index.htmlhttps://blog.rapid7.com/2016/06/02/working-with-bro-logs-queries-by-example/# cat conn.log | bro-cut id.orig_h id.orig_p id.resp_h duration
141.142.220.202 5353 224.0.0.251 -
fe80::217:f2ff:fed7:cf65 5353 ff02::fb -
141.142.220.50 5353 224.0.0.251 -
141.142.220.118 43927 141.142.2.2 0.000435
141.142.220.118 37676 141.142.2.2 0.000420
141.142.220.118 40526 141.142.2.2 0.000392
141.142.220.118 32902 141.142.2.2 0.000317
141.142.220.118 59816 141.142.2.2 0.000343
141.142.220.118 59714 141.142.2.2 0.000375
141.142.220.118 58206 141.142.2.2 0.000339
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