February 2020
Intermediate to advanced
666 pages
15h 45m
English
Content preview from Mastering Linux Security and Hardening - Second Edition
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Scanning a web server with Nikto
From here on out, you no longer need sudo privileges. This means you can have a break from always having to type your password.
To do a simple scan, use the -h option to specify the target host:
nikto -h 192.168.0.9nikto -h www.example.com
Let's look at some sample output. Here's the top part:
+ Allowed HTTP Methods: POST, OPTIONS, GET, HEAD+ OSVDB-396: /_vti_bin/shtml.exe: Attackers may be able to crash FrontPage by requesting a DOS device, like shtml.exe/aux.htm -- a DoS was not attempted.+ /cgi-bin/guestbook.pl: May allow attackers to execute commands as the web daemon.+ /cgi-bin/wwwadmin.pl: Administration CGI?+ /cgi-bin/Count.cgi: This may allow attackers to execute arbitrary commands on the server
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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.