Linux Firewalls: Attack Detection and Response with iptables, psad, and fwsnort by Michael Rash
Author:Michael Rash
Language: eng
Format: mobi, pdf
Tags: Linux, Networking, Access control, Reference:Computers, Computers - Access control, Computers, Firewalls (Computer security), General, Internet, Security, Operating Systems
ISBN: 9781593271411
Publisher: No Starch Press
Published: 2007-01-15T21:40:03.607000+00:00
[ext_scanner]# nmap -sF -P0 -p 80 -n 71.157.X.X
Starting Nmap 4.01 ( http://www.insecure.org/nmap/ ) at 2007-03-05 20:50 EST
Interesting ports on 71.157.X.X:
PORT STATE SERVICE
80/tcp open|filtered http
Nmap finished: 1 IP address (1 host up) scanned in 0.812 seconds
In this case, Nmap receives zero packets from the targeted TCP stack, and it has to accept this as evidence that the port is either open (an open port does not respond with any packet upon receiving an orphaned FIN packet, as discussed in Chapter 3) or filtered (because a firewall or similar mechanism prevented the stack from responding). iptables does indeed filter this blind FIN packet and, in the process, psad adds the blocking rules against the attacker.
Download
Linux Firewalls: Attack Detection and Response with iptables, psad, and fwsnort by Michael Rash.pdf
This site does not store any files on its server. We only index and link to content provided by other sites. Please contact the content providers to delete copyright contents if any and email us, we'll remove relevant links or contents immediately.
Test-Driven iOS Development with Swift 4 by Dominik Hauser(7422)
Linux Device Driver Development Cookbook by Rodolfo Giometti(3544)
The Infinite Retina by Robert Scoble Irena Cronin(2489)
MCSA Windows Server 2016 Study Guide: Exam 70-740 by William Panek(2335)
Docker on Windows by Stoneman Elton(2126)
Kali Linux - An Ethical Hacker's Cookbook: End-to-end penetration testing solutions by Sharma Himanshu(2125)
Filmora Efficient Editing by Alexander Zacharias(2125)
Hands-On AWS Penetration Testing with Kali Linux by Karl Gilbert(1905)
Computers For Seniors For Dummies by Nancy C. Muir(1796)
Hands-On Linux for Architects by Denis Salamanca(1792)
The Old New Thing by Raymond Chen(1744)
Programming in C (4th Edition) (Developer's Library) by Stephen G. Kochan(1732)
MCSA Windows Server 2016 Study Guide: Exam 70-741 by William Panek(1496)
Edit Like a Pro with iMovie by Regit(1465)
Installing and Configuring Windows 10: 70-698 Exam Guide by Bekim Dauti(1451)
Mastering PowerShell Scripting - Fourth Edition by Chris Dent(1449)
Mastering Kubernetes by Gigi Sayfan(1425)
Embedded Systems Architecture by Daniele Lacamera(1406)
Certified Kubernetes Administrator (CKA) Exam Guide by Mélony Qin(1379)
![](/ebook_detail_files/space.gif)