June 2010
Intermediate to advanced
224 pages
5h 18m
English
Content preview from Network Flow AnalysisBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Automating Graph Production
Although you'll always need to have some ad hoc reporting ability, you'll find that you need certain graphs over and over again. You should make producing these graphs so easy that one of your flunkies can do it, or you can even schedule graph production with cron. The best way to manage this is through scripting and automation. gnuplot is very scripting-friendly, and the following script processes yesterday's flow files to generate a bidirectional traffic graph.
Note
This script is not optimized. In a real environment, you'd send email via Perl, but I don't want to waste a page on that example when you probably already have a standard way to send mail on your systems. Too, this script uses insecure temp files, and you ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.