Articles tagged with: hakin 12/2007
on :
Wednesday, 12 Dec, 2007
Spammers often use insufficiently secured systems. The trouble and cost of sending tens or hundreds of thousands of messages are transferred to third parties. You will learn what techniques spammers use and how to protect yourself.
Author: Tomasz Nidecki
Source: http://hakin9.org Hakin9 12/2007
What you will learn...
- how spammers send spam (using third party computers),
- how to protect your server from spammers,
- how the SMTP protocol works,
- what open relay, open proxy and zombie are.
What you should know...
- how to use basic tools from the Linux system.
Sending a great number of emails requires a lot of resources. A fast connection and a dedicated server is needed. Even if a
on :
Wednesday, 12 Dec, 2007
Information which should be protected is very often publicly available, revealed by careless or ignorant users. The result is that lots of confidential data is freely available on the Internet – just Google for it.
Author: Michał Piotrowski
Source: http://hakin9.org Hakin9 12/2007
What you will learn...
- how to use Google to find sources of personal information and other confidential data,
- how to find information about vulnerable systems and Web services,
- how to locate publicly available network devices using Google.
What you should know...
- how to use a Web browser,
- basic rules of operation of the HTTP protocol.
Google serves some 80 percent of all search queries on the Internet, making it
on :
Saturday, 1 Dec, 2007
Firewall technologies today are still a critical component to protect systems and networks. Standard filtering solutions can be complemented with more advanced techniques to secure the services behind a firewall.
Author: Raul Siles
Source: http://hakin9.org Hakin9 12/2007
What you will learn...
on :
Saturday, 1 Dec, 2007
Firewalls – We have all heard of them in some way or the other and most of us have worked on them as well. Although prevalent to our network security infrastructure, not a lot of us in the IT world
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Saturday, 1 Dec, 2007
I've been using, configuring and administrating firewalls for at least 3 years, in which I've seen and tested the most used of those like Iptables, BSD's PF, Ipfilter, Checkpoint, common firewalls in embedded devices, and almost all software firewalls.
Author: Michele Orrù
Source:
on :
Saturday, 1 Dec, 2007
Visiting online banking services and other secured sites is becoming increasingly dangerous. Entering your credit card number on a website which looks deceptively similar to that of your bank might end with a considerable sum disappearing from your account. Unfortunately,
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Saturday, 1 Dec, 2007
Voice Over IP (VoIP) is one of the hottest buzzwords in contemporary IT, even more so since the last CeBit in March 2005, and a new hope for both service providers and device manufacturers. Countries with good network infrastructure typically
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Saturday, 1 Dec, 2007
One of the most common and efficient DDoS attack methods is based on using hundreds of zombie hosts. Zombies are usually controlled and managed via IRC networks, using socalled botnets. Let's take a look at the ways an attacker can
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Saturday, 1 Dec, 2007
Penetration tests are one of the techniques used to expose holes in the security of an IT system. They are carried out by simulating the actions of a potential intruder. Since they are supposed to resemble what could happen in
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Saturday, 1 Dec, 2007
Bluetooth is rapidly gaining popularity throughout the world, with some 1.5 billion devices expected to support the technology by the end of 2005. However, Bluetooth can also be used for malicious purposes, such as snooping into private data, causing financial
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Saturday, 1 Dec, 2007
The only way to guarantee safe storage of data is to use advanced cryptographic algorithms. There are Linux tools which allow the encryption of single files, directories and even whole partitions. Let's have a look at the methods of encrypting
on :
Saturday, 1 Dec, 2007
A man-in-the-middle attack (MITM) is an attack in which an attacker is able to read, insert and modify at will, messages between two parties without either party knowing that the link between them has been compromised. The attacker must be
