Intrusion Detection Systems CMIT368 August 12, 2006 Introduction As technology has advanced, information systems have become an integral part of every day life. In fact, there are not too many public or private actions that can take part in today’s society that do not include some type of information system at some level or another. While information systems make our lives easier in most respects, our dependency upon them has become increasingly capitalized upon by persons
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layer of security. By combining these practices, the chances of another DoS/DDoS attack succeeding will be greatly diminished. Acceptable Use Policies Acceptable Use policies define the types of actions that are allowed to be performed on systems and the network. These policies also define the actions that are to be taken if the policy is violated. For the university, a policy may be created which states that can only use the computers for functions related to the school. This usage could be limited
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Intrusion Detection Systems with Snort Advanced IDS Techniques Using Snort, Apache, MySQL, PHP, and ACID BRUCE PERENS’ OPEN SOURCE SERIES ◆ Managing Linux Systems with Webmin: System Administration and Module Development Jamie Cameron ◆ Implementing CIFS: The Common Internet File System Christopher R. Hertel ◆ Embedded Software Development with eCos Anthony J. Massa ◆ The Linux Development Platform: Configuring, Using, and Maintaining a Complete Programming Environment Rafeeq
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When looking to strengthen our network designs we looked at the typical threats and risks that they pose. Here are some of the attacks we used as of priority to protect ourselves when looking to see what we would be up against: • DOS/DDOS Attacks • Man In the Middle Attacks / Spoofing • Buffer Overflow • Fragmentation Attacks • Session Hijacking • Social Engineering • SQL Injection / Injection attacks • Eavesdropping • Replay Attacks
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Compare and Contrast Three Intrusion Detection Systems (IDS) Devon Hopkins Webster University Introduction In the today’s society security is of paramount importance, whether it’s your business, home, vehicle, or computer. Companies are responsible for securing their employees, work area and the technology they use to operate their business. On a daily basis companies are under attack making them vulnerable to more and more worms, viruses, denial of service (DoS) attacks and hacking, shutting
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re-test the system in readiness for returning it to service, and complete a detailed security incident response report in the provided template. You used AVG Anti-Virus Business Edition to scan the infected workstation and documented your findings as you proceeded. Lab Assessment Questions & Answers 1. When you are notified that a user's workstation or system is acting strangely and log files indicate system compromise, what is the first thing you should do to the workstation or system and why
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when another task is being performed. According to (Roesch, 1999) when alerting is unnecessary or inappropriate, such as when network penetrations tests are being performed. 2. If we only went to a few web sites, why are there so many alerts? Snort IDS performs numerous functions that would generate an alert. Alerts are generated based on any suspicious network activity. Although a user may have only visited 5 sites, snort may have generated 12 or more alerts that were generated due to
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their paycheck. IT personnel were able to identify that an internal system was conducting a man-in-the-middle attack by spoofing an internal Internet Protocol address, whereby all traffic that was sent to a specific location was involuntarily sent to another system. The culprit was lack of access controls, central reporting systems, authentication controls, and a lack of host based intrusion prevention systems. These controls and systems would have prevented this type or at minimal detected this type
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paycheck. However the IT personnel was able to dictate that an internal system had done a middle man attack through an internal internet Protocol address, whereby all traffic meant for a particular location was sent to another system unknowingly. The suspect didn't have the right access control central reporting systems, authentication controls, and a lack of host based intrusion prevention systems. These controls and systems are actually meant to act as guide against this kind of attack and save
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used to protect computer systems. However information prevention alone is not sufficient to protect our systems as those systems become even more complex with the rapid growth and expansion of Internet technology and local network systems. Moreover, programming errors, firewall configuration errors and ambiguous or undefined security policies add to the system’s complexity. An Intrusion Detection system (IDS) is therefore needed as another layer to protect computer systems. The IDS is one of the most
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