Network Security
The need for intrusion detection systems (IDS) and intrusion prevention systems (IPS) and how they can effectively be used in a network operations setting?
The 24 consonant sounds comprise six stops (plosives): p, b, t, d, k, g; the fricatives f, v, θ (as in thin), ð [eth] (as in then), s, z, ∫ [esh] (as in ship), Ʒ (as in pleasure), and h; two affricatives: t∫ (as in church) and dƷ (as the j in jam); the nasals m, n, ŋ (the sound that occurs at the end of words such as young); the lateral l; the postalveolar or retroflex r; and the semivowels j (often spelled y) and w. These remain fairly stable, but Inland Northern American differs from RP in two respects: (1) r following vowels is preserved in words such as door, flower, and harmony, whereas it is lost in RP; (2) t between vowels is voiced, so that metal and matter sound very much like British medal and madder, although the pronunciation of this t is softer and less aspirated, or breathy, than the d of British English.
Network Security The need for intrusion detection systems (IDS) and intrusion prevention systems (IPS) and how...
3. (a) Describe the differences between a host-based Intrusion Prevention System (IPS) and a network-based IPS. (b) What are three benefits that can be provided by an IPS compared to an IDS? (c) One form of IDS starts operation by generating an alert for every action. Over time, the administrator adjusts the setting of the IDS so that common, benign activities do not generate alarms. What are the advantages and disadvantages of this design for an IDS?
How do intrusion detection systems differ from intrusion prevention systems? Give an example from either a network or a host point of view
1. Describe two differences between IDS and Intrusion Prevention System (IPS).
After a security review, it is recommended that your organization install a network intrusion prevention stem (NIPS). Based on the current budget, your manager recommends that you install a less-costly network detection system (NIDS). What is the primary security difference between a network intrusion detection system (NIDS) and a network intrusion prevention system (NIPS) that you can use to justify the additional costs? Explain how the difference is a positive or a negative in terms of security.
How does "encryption in-flight" using IPSec, SSL, or TLS impact the visibility of Network Intrusion Detection/Prevention? Why don't firewalls have the same visibility issue? Why don't Host based Intrusion Detection/Prevention Systems have the same visibility issue? Why don't Proxy Servers have the same visibility issue?
What is the difference between a network intrusion detection system (NIDS) and a network intrusion prevention system (NIPS)? a. There is no difference; a NIDS and a NIPS are equal. b. A NIPS can take actions more quickly to combat an attack. c. A NIDS provides more valuable information about attacks. d. A NIPS is much slower because it uses protocol analysis.
Intrusion detection systems have fundamental flaws in their designs and functionalities. Intrusion detection does not necessarily prevent intrusions. As more organizations encrypt traffic, it becomes increasingly difficult to track intrusions because IDSs have no capabilities to examine encrypted traffic and are, therefore, unable to recognize problems and create alerts. Engineers rely heavily on IDSs to fight hackers. If configured improperly, the IDS will generate false positive alerts, which can be disastrous to the organization. Too many alerts can cause security...
differentiate between the different types of intrusion detection systems and explain their uses. Describe optimum locations for IDS on a corporate TCP/IP network and explain how IDSs can be used to complement firewalls.
Explain how an IPS can be crippling to an organization, including how intrusion detection logs can overwhelm an unprepared IT staff. Support your rationale. PLease provide an original answer.
Given the network security applications and countermeasures in the first column of the table below, explore answers to the following questions: Where does the application or countermeasure belong in the seven domains of a typical IT infrastructure? An application or countermeasure may span two or more domains. What confidentiality, integrity, and availability (CIA) function(s) does the countermeasure provide? Provide your answers in the table below. Network Security Applications and Domain(s) CIA Function(s) Countermeasures Intrusion detection system/intrusion prevention system (IDS/IPS) Cryptography...