Break a 140MB file to smaller files
I have a 140MB trace file and I'd like to break it down to several 30Mb file so I can attached to my email. How do I do that? Thx
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This discussion has some different ways:
https://serverfault.com/questions/131872/how-to-split-a-pcap-file-into-a-set-of-smaller-ones
Everyone has their preference, but I prefer:
tcpdump -r old_file -w new_files -C 10
Where C is in MB. Another good discussion on the topic using editcap:
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even 30MB would be too much for most users because the binary files are being transfered using Base64 encoding which will make your 30MB file like 40MB+ mail - an easy way to fill up user's quota.
Use dropbox/wetransfer etc instead - your recipient will thank you for saving time by avoiding mergecap'ing
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