July 2017
Intermediate to advanced
434 pages
12h 59m
English
Content preview from FreeSWITCH 1.8
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Handling NAT
NAT (Network Address Translation) is the most notable legacy of a very different time: when the Internet was not widely adopted, and dinosaurs were roaming free. At that time, like... 20 year ago?, there was plenty of available Internet Addresses (was normal to be assigned a class C network with 254 public Internet routable addresses. I personally got two class-C, for iol.it and for matrice.it) and no one had any idea the ipv4 address pool will ever be exhausted. So, most machines on the Internet were there with their own public address. Also, no problems with security, encryption, and all that. There was no money on the Internet, so no crime.
Telecommunication was a matter of having the best way to connect two public hosts peer-to-peer. ...
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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.