June 2018
Intermediate to advanced
294 pages
7h 5m
English
Content preview from Practical Web Penetration Testing
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Secure shell protocol
Secure shell (SSH) protocol is a network protocol that is used to establish an encrypted communication between a server and a client, using the TCP protocol. The SSH service is TCP-based, and listens, by default, on port 22. In general, a public-private key pair allows users to log in to a system without requiring a password. The public key is present on all systems that require a secure connection, while the user keeps the private key in a secure place. On the target systems, the public key is verified against a list of authorized keys that are allowed to remotely access the server. SSH can be compromised when the public key is not cryptographically strong enough, and can be guessed.
- To start the ssh service, use the ...
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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.