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Cybrary’s Open Blog is a user contributed cyber security knowledge base that brings together content highlighting the latest tools, exploits, technologies and insights in the industry.
 
Featuring tutorials, op-eds, research papers, user guides, cheat sheets, product reviews and more; The Open Blog provides the cyber security community a growing resource of content that can help professionals at all levels in their careers.


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August 7, 2015
By: ram
4247

The Unconventional Guide to Network Security 1.2
Network Security 1.2 Based on CompTIA’s list of Security + exam objectives (their PDF list of domains is found here: http://certification.comptia.org/docs/default-source/exam-objectives/comptia-security-sy0-401.pdf ), I’ll go through each one, giving examples and details where possible, so you know better what each listed item means, does and looks like. The examples are not in any particular order, preference, or even recommendation – they’re just quick-and-easily- ...
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August 6, 2015
2084

By: klrgrz
The problem with passwords is that humans are inherently lazy (hey, me too!) and Security Admins are apparently a special kind of sadist when they think users can remember an insane combination of 1337 and binary. In reality, complex password requirements traditionally lead to greater security risks because users find new ways of cheating to r ...
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August 6, 2015
7467

By: Matthew Williams
Using PsTools: With PsTools, there are a number of different utilities included. The two I’ll focus on are: PsExec and PsShutdown. The rest are useful, too, and you can apply these techniques and batch files to them fairly easily. PsExec is used to execute remove cmd commands or processes on domain connected servers or workstations. I ...
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August 6, 2015
By: Amir
23008

My Journey: CCNA and SECURITY+
The moment you think you know something about security, you realize you don’t know anything! I’ll discuss my experience pursuing a CCNA certificate and a Security + certificate. The Beginning In 2011, I began learning about networking through free classes in San Diego’s community college continuing education programs. I started with CCNA classes and hoped to complete levels 1-4. It was a great to do the hands-on labs, learn about different protocols and apply n ...
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August 6, 2015
By: Fiest Kazama
946

IP Fragmentation Flaw
Closing all the attack venues by deploying “proper” cryptography is not always feasible and easy, and even then, the protection is not complete – the DoS potential remains. Without cryptography, the integrity of TCP/IP sessions is protected only by a small set of parameters that are – hopefully – not known to a person not involved in the communications,and offer enough possible values to make brute-force attacks usually not feasible. In practice, ...
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July 28, 2015
2580

By: Laird
Obtaining information for social engineering, or from the target organization knowingly made unwitting available. As with anything should first be taken ethical considerations into account.To answer the question of whether the use of social engineering techniques as part of a penetration testing is acceptable , should first be shown why social ...
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July 24, 2015
13087

By: Kevin Mark
MDK3 Option B. Option -b means it’s a beacon flood, it will send to a target a lots of fake APs, which can crash scanners, drivers and make more harm to a target then you imagine, and can suprise you a lot if you don’t take any cauction with this attack. 1. airmon-ng start wlan0 ->>>> Should say this ” (monitor mo ...
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July 23, 2015
By: Kevin Mark
47694

The Ethical Hacker’s Guide to Cracking WiFi (WPS)
Hello and welcome to this little tutorial! We’re going to use Reaver and Wash. For those of you who don’t what Reaver and Wash are, Google them. In short, Reaver tries different pins until it catches the right one. It TAKES HOURS TO CRACK A PIN, so be patient. You can use OS X, Kali package or whatever. If we are on Kali, type following: Airmon-ng start interface > mon0 For the scan, we’re using Wash to check for WPS. If it’s locked, we have ...
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