March 2018
Intermediate to advanced
626 pages
17h 32m
English
book
Network Analysis Using Wireshark 2 Cookbook - Second Edition
by Nagendra Kumar Nainar, Yoram Orzach, Yogesh Ramdoss
Content preview from Network Analysis Using Wireshark 2 Cookbook - Second Edition
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The resolving process
There are two reasons for using DNS servers:
- The first reason is that it is used for internal communication in your organization. In this case, you have a DNS server in your organization that resolves the IP addresses to names in your organization.
- It is used for connecting to the internet, browsing, sending emails, and so on.
When both services are used, you will send the DNS query to your organization server, which will send the query to the internet. For example, when you want to get to a local server in your organization, you will send a DNS query to the local DNS and you will get the server IP. When you browse a website on the internet, your local DNS server forwards the request to the external DNS, for example, ...
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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.