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Introduction:

Briefly describe why the TCP/IP web are considered unbarred?

The TCP and IP Network protocols could be considered the most of import in the universe today – they are the footing of the Internet. The protocols deficiency many characteristics that are desirable or needed on an unbarred network.TCP/IP uses theclient/servermodel of communicating in which a computing machine user petitions and is provided a service by another computing machine in the web.

Weakness/unsecured of TCP/IP Network:

General weaknesses/unsecured OF TCP/IP.Here is some failing points are given below:

IP spoofing:

An IP Spoofing Attack involves one entity falsely portraying itself as another entity. This type of onslaught can be carried out by a human user or a plan. The spoofer can convert the terminal user that stuff being transmitted comes from a safe beginning.

Network Snufferss:

A package sniffer is a wire-tap devices that plugs into computing machine webs and eavesdrops on the web traffic.

WinNuke:

The term WinNuke refers to a distant denial-of-service onslaught ( DoS ) that affected the Microsoft Windows 95, Microsoft Windows NT computing machine runing systems.

Teardrop Attacks:

A Teardrop onslaught involves directing mangled IP fragments with overlapping, over-sized warheads to the mark machine. This can crash assorted runing systems due to a bug in their TCP/IP atomization re-assembly codification.

Ssping:

SSping DoS onslaughts and you still crash, and so the manner of onslaught is likely Teardrop or LAND. If you are utilizing IRC, and your machine becomes disconnected from the web or Internet

SYN Implosion therapy:

Once aggressor Michigans deluging waiter, it normally goes back to normal province ( SYN inundations seldom crash waiters ) .

Man-in-the-middle:

Man-in-the-middle onslaughts are besides known as bucket-brigade onslaughts. The aggressor may merely hold entree to the messages or may modify them. Common hallmark techniques can be used to relieve the menaces of this onslaught.

Describe how the undermentioned engineerings are employed in procuring TCP/IP execution.

  • SSL ( Secure Socket Layer ) .
  • IPSec ( IP Security ) .
  • Kerberos

SSL ( Secure Socket Layer ) :

The Secure Sockets Layer is a commonly-used protocol for pull offing the security of a message transmittal on the Internet. SSL has late been succeeded by Transport Layer Security, which is based on SSL. SSL uses a plan bed located between the Internet ‘s Hypertext Transfer Protocol and Transport Control Protocol beds.

What Services can be protected With SSL?

About any Internet service can be protected with SSL. Common 1s include Web Mail and other secure web sites such as banking sites and corporate sites, POP, IMAP, and SMTP. LuxSci provides SSL services to protect your username, watchword, and communications over all of these and other services.

SSL is of great concern for hosting an E commercialism, shopping, banking portals, i.e. wherever an on-line dealing is involved, particularly recognition cards. There ‘re specific SSL certification suppliers.

How Does Procure Socket Layer Work?

The Secure Socket Layer, SSL for short, is a protocol by which many services that communicate over the Internet can make so in a unafraid manner. Before we discuss how SSL works and what sorts of security it provides, allow us foremost see what happens without SSL.

SSL in Action:

SSL really works for procuring your communications over the Internet. Before the communications occur, the undermentioned takes topographic point:

  • A company wishes to procure communications to their waiter company.com.
  • They create a public and private key for company.com
  • They go to a sure 3rd party company such as Thawte or Verisign:
  • Once the confirmation is complete, Thawte gives the company a new public key that has some extra information.
  • This enfranchisement information is encrypted utilizing Thawte ‘s private key.

Key Benefits of SSL:

  • Unlimited business-to-business and business-to-customer enlargement
  • Enhanced consumer assurance
  • Low entire cost of ownership
  • Cost-efficient online bringing
  • Faster clip to gross
  • Faster apparatus
  • Before you start
  • Before you can get down the procedure of obtaining a Certificate, you must bring forth a Private Key and CSR pair off your web waiter. Before you purchase

IPsec ( IP Security )

Internet Protocol security is a model of unfastened criterions for protecting communications over Internet Protocol ( IP ) networks through the usage of cryptanalytic security services. IPsec supports network-level equal hallmark, informations origin hallmark, informations unity, and informations confidentiality encoding, and rematch protection. IP Security Network are work in the Network Layer. The more unafraid Tunnel manner encrypts both the heading and the warhead. On the receiving side, an IPSec-compliant device decrypts each package.

The IPSEC working group will curtail itself to the following short-termwork points to better the bing cardinal direction protocol ( IKE ) andIPSEC encapsulation protocols:

  1. Changes to IKE to back up NAT/Firewall traverse
  2. Changes to IKE to back up SCTP
  3. New cypher paperss to back up AES-CBC, AES-MAC, SHA-2, and a fastAES manner suitable for usage in hardware encryptors.
  4. IKE MIB paperss
  5. Sequence figure extensions to ESP to back up an expanded sequence figure infinite.
  6. Clarification and standardisation of rekeying processs in IKE.

This is the cognitive map of IPSec. The policy faculty examines the IPSec scenes of a system and determines which traffic should be protected and some generic scenes for that protection. It does non make the existent work of protecting the information ; it merely alerts the IPSec driver that the traffic must be protected.

Kerberos

Kerberos is a web hallmark protocol. It is designed to supply strong hallmark for client/server applications by utilizing secret-key cryptanalysis. A free execution of this protocol is available from theMassachusetts Institute of Technology. Kerberos is available in many commercial merchandises every bit good.

The KDC shops hallmark information and uses it to firmly authenticate users and services.

This hallmark is called secure because it:

  • Does non happen in plaintext
  • Does non trust on hallmark by the host operating system
  • Does non establish trust on IP references
  • Does non necessitate physical security of the web hosts

IT Kerberosis the mention execution. MIT Kerberos supports DEC UNIX, Linux, Irix, Solaris, Windows and MacOS.Several other commercial and non-commercial Kerberos executions are besides available. Microsoft added a little modified version of Kerberos v5 hallmark in Windows 2000.

Kerberos Weaknesses:

  • Secure and synchronise redstem storksbills implied by usage of timestamps.
  • Password conjecture onslaughts, in existent executions initial shared keys are password driver.
  • Reply onslaughts, reuse of appraisers within lifetime period.
  • See bellovin and Merritt paper for more.
  • These are failings in the overall protocol, non with the underlying cryptanalysis.

Summary:

TCP/IP, as it exists today, has a general deficiency of security. Examples of executions of SYN implosion therapy, IP Spoofing, Connection Hijacking, etc. show that this deficiency of security has lead straight to the development of tools and techniques to work TCP/IP ‘s failings. Repairing some of these defects today is possible ( with additions like TCP Wrappers, Kerberos, and SKIP Thus, most communicating on today ‘s Internet is still unbarred.

Undertaking 2

Introduction:

In this undertaking discoursing a Security rating by an independent organic structure is a widely-accepted attack which is used as an of import standard of confidence of the security of a system. Writing a study Trusted Computer Security Evaluation Criteria ( TCSEC ) , Trusted Network Interpretation ( TNI ) , Information Technology Security Evaluation Criteria ( ITSEC ) , The Common Criteria & A ; What types of merchandises are evaluated utilizing a security rating standard? About these.

Trusted Computer Security Evaluation Criteria ( TCSEC )

Trusted Computer Security Evaluation Criteria A papers published by the US Department of Defense which contains standards used for measuring the grade of security in a networked system. The TCSEC used to measure, sort and choose computing machine systems being considered for the processing, storage and retrieval of sensitive or classified information.Which specified the well-known Class C2 evaluation. It characterizes security from D to. Most operating system and web operating system are classified at the C2 degree. The TCSEC was used to measure, sort and choose computing machine systems being considered for the processing, storage and retrieval of sensitive or classified information.

The TCSEC defines four divisions: D, C, B and A where division A has the highest security. Each division represents a important difference in the trust an person or organisation can put on the evaluated system. Additionally divisions C, B and A are broken into a series of hierarchal subdivisions called categories: C1, C2, B1, B2, B3 and A1.

Trusted Network Interpretation ( TNI )

The Information Technology Security Evaluation Criteria ( ITSEC ) is a structured set of standards for measuring computing machine security within merchandises and systems. The ITSEC topographic points increased accent on unity and handiness, and efforts to supply a unvarying attack to the rating of both merchandises and systems. The ITSEC allows less restricted aggregations of demands for a system at the disbursal of more complex and less comparable evaluations and the demand for effectiveness analysis of the characteristics claimed for the rating. In the instance of the ITSEC, it is recommended that if an appropriate C2 rated merchandise is non available, that ITSEC rated FC2/E2 merchandises be used. The security policy must be expressed, chiseled and enforced by the computing machine system.

The ITSEC did non necessitate evaluated marks to incorporate specific proficient characteristics in order to accomplish a peculiar confidence degree. For illustration, an ITSEC mark might supply hallmark or unity characteristics without supplying confidentiality or handiness. A given mark ‘s security characteristics were documented in a Security Target papers, whose contents had to be evaluated and approved before the mark itself was evaluated. Each ITSEC rating was based entirely on verifying the security characteristics identified in the Security Targ.

Information Technology Security Evaluation Criteria ( ITSEC )

The Information Technology Security Evaluation Criteria ( ITSEC ) is a structured set of standards for measuring computing machine security within merchandises and systems. The ITSEC did non necessitate evaluated marks to incorporate specific proficient characteristics in order to accomplish a peculiar confidence degree.

For illustration, an ITSEC mark might supply hallmark or unity characteristics without supplying confidentiality or handiness. A given mark ‘s security characteristics were documented in a Security Target papers, whose contents had to be evaluated and approved before the mark itself was evaluated. Each ITSEC rating was based entirely on verifying the security characteristics identified in the Security Target. The ITSEC and TCSEC have many similar demands, there are some of import differentiations. The ITSEC topographic points increased accent on unity and handiness, and efforts to supply a unvarying attack to the rating of both merchandises and systems.

In so making, the ITSEC allows less restricted aggregations of demands for a system at the disbursal of more complex and less comparable evaluations and the demand for effectiveness analysis of the characteristics claimed for the rating. The inquiry of whether the ITSEC or TCSEC is the better attack is the topic of sometimes intense argument

The Common Criteria

The Common Criteria ( CC ) on occasion referred to as the Harmonized Criteria, is a transnational attempt to compose a replacement to the TCSEC and ITSEC that combines the best facets of both. The CC has a construction closer to the ITSEC than the TCSEC and includes the construct of a “ profile ” to roll up demands into easy specified and compared sets. The TPEP is actively working to develop profiles and an rating procedure for the CC Common Criteria ratings are performed on computing machine security merchandises and systems.

Common Criteria is a model in which computing machine system users can stipulate their security functional and confidence demands, sellers can so implement and/or do claims about the security properties of their merchandises, and proving research labs can measure the merchandises to find if they really meet the claims. Common Criteria provides confidence that the procedure of specification, execution and rating of a computing machine security merchandise has been conducted in a strict and standard mode

Common Criteria is really generic ; it does non straight supply a list of merchandise security demands or characteristics for specific merchandises: this follows the attack taken by ITSEC.

What types of merchandises are evaluated utilizing a security rating standard?

These types of merchandises are evulated utilizing security evulation standards these are given below:

Firewall: Firewall tins incorporate security systems is enabling the user to command web traffic, i.e. informations sent and received over the web by applications that are running on the user ‘s computing machine. A constituent that offers such control is called a firewall.

For evaluate firewall effectiveness trial to leak:

A firewall provides security which is extra to that provided by other security solutions and contraptions. Additional security is going progressively relevant due to the addition in the figure of new malicious plans. Firewalls block unwanted web traffic, both inbound and outbound. Leak trials, which are the topic of this article, measure how faithfully a firewall controls outbound traffic and protects the computing machine from informations leaks.

Intrusion Detection System:

Using IDS Testing Tools for security ratings

A safer and faster alternate to utilizing existent feats is to buy and use an IDS proving tool. The best-known IDS proving tool isBlade IDS Informer, fromBlade Software. Informer plants by play backing IP, UDP and ICMP packages, every bit good as complete TCP Sessionss that contain assorted scans, investigations and onslaughts. Can be modifying the beginning and finish IP and MAC addresses that the packages use as needed. Informer comes with 100s of onslaughts, divided into classs of related onslaughts ; the user can choose which onslaughts or groups of onslaughts they would wish to utilize. Blade on a regular basis updates the Informer onslaught suite so you can maintain your IDS proving reasonably current with new onslaughts and onslaught techniques.

Port scanners:

Port scanner proving for security rating:

Port scanners offer the best return because of the subsequential information they apply the distant system.network. Port scanner test port utilizing testing tools for security rating system logs, NIDS logs and Firewall logs used to aim the web can enter a important sum of web activity when the port scanner is in usage. The nmap public-service corporation is the primear tool for a security tster.Nmap is classified most popular port figure. The nmap tool reveals unfastened TCP and UDP ports on remote system and list application normally associated with the ports.

Task-3

Introduction:

Intrusion sensing system ( IDS ) refers to architecture of devices, package and other type ‘s engineering solutions that are designed to observe malicious activity. The rapid growing of intiurdsion salutes has occurred because companies realize that a healthy web depends on the ability of decision makers to talk intelligently about the sum and type of malicious activity seen on the web.

Briefly described the undermentioned footings:

Intrusion sensing systems ( IDS ) :

Intrusion Detection System ( IDS ) is a system for observing abuse of web or computing machine resources. An IDS will hold a figure of detectors it utilizes to observe invasions. Example detectors may be:

  1. A detector to monitorTCPconnection petitions.
  2. Log file proctors.
  3. File unity draughtss.

The IDS system is responsible for roll uping informations from its detectors and analysing this information to give the security decision maker notice of malicious activity on the network.IDS engineerings are normally divided into, HIDS and Honeypots.

Intrusion bar systems:

Intrusion Prevention System ( IPS ) solution provides powerful protection by barricading invasion efforts, protecting against malware, Trojans, DoS onslaughts, malicious codification transmittal, backdoor activity and blended menaces. It is a subscription service, offering the most comprehensive, zero-hour protection to endeavors in combination with the Cyberoamfirewall gateway anti-virus and anti-spyware, anti-spam and content & A ; application filtering services. Attackers are progressively turning to extremely targeted external and internal onslaughts.

Three chief types of Idaho:

An invasion sensing system ( IDS ) proctors web traffic and proctors for leery activity and alerts the system or web decision maker. The IDS may besides react to anomalous or malicious traffic by taking action such as barricading the user or beginning IP reference from accessing the web. An IDS has three types of sensing devices there are given below:

NIDS

A Network IDS is an overall system of devices that work together to supervise the web.

NIDS at least consist of a detector, a director, a database and a console. Each equipment has a specific responsibility.

  • Detector: It work is monitor the web and describing leery activity to director.
  • Director: Roll uping information go throughing the database for shop.
  • Database: Database collected study shop and convey the consol.
  • Console table: Analyze the studies and it ‘s against take actions.
  • Detector: Detectors work is monitor the hosts and describing leery activity to director.
  • Director: Collection studies go throughing the database for shop
  • Database: Database collected study shop and convey the consol.
  • Console table: Analyze the studies and it ‘s against take actions.

Honeypots refers to a computing machine system dissembling it ‘s identify and ask foring maltreatment to roll up information on aggressors.

Figure: Honeypot Implementation

Honeypot put in a web waiter proctors malicious traffic and study transmit to director, director these studies send to database, database its shop and so direct to comfort for analyze these study and take action against them.

IDS equivocation techniques:

Intrusion sensing system equivocation techniques bypass sensing by making different provinces on the IDS and on the targeted computing machine. The adversary accomplishes this by pull stringsing either the onslaught itself or the web traffic that contains the onslaught.

  1. Most Network IDS merchandises based their qui vives strictly on form fiting package contents against a database of known signatures.
  2. Then came a new strain of IDS offerings that approached the job in a wholly different manner – by making a full protocol analysis on the information watercourse.
  3. Others began to utilize heuristics or anomaly-based analysis to find when an attempted onslaught had taken topographic point.
  4. Most IDS employ a mixture of these sensing methods in a individual merchandise, though some will be more colored towards one method than another.
  5. Harmonizing to Cisco, there are five chief methods of onslaught designation beginning.
  6. Cisco Systems, The Science of Int rusion Detection System Attack Identification.

Many free IDSs are available on the Internet.

Many Intrusion Detection Systems are found on the cyberspace and within these top degree sensing systems are Snort, OSSEC HIDS, Fragroute/Fragrouter, BASE and Sguil.These Intrusion sensing system to my think most popular sensing system is Snort. So I am choosing this WinPcap Detection System. Now my Opinion can I efficaciously demonstrate the typical map of Intrusion Detection Systems and Implement the selected IDS and Prepare a brief study depicting my experience is given below: –

WinPcap:

WinPcap is the industry-standard tool for link-layer web entree in Windows environments: it allows applications to capture and convey web packages short-circuiting the protocol stack, and has extra utile characteristics, including kernel-level package filtering, a web statistics engine and support for remote package capture.WinPcap consists of a driver that extends the operating system to supply low-level web entree, and a library that is used to easy entree the low-level web beds. This library besides contains the Windows version of the well knownlibpcapUnix API.

Implements:

When implements this package any web computing machine so these maps provides WinPcap:

  • The first one offers a low-level API that can be used to straight entree the maps of the driver, with a programming interface independent from the Microsoft OS.
  • The 2nd one exports a more powerful set of high degree gaining control primitives that are compatible with libpcap, the good known UNIX gaining control library. These maps enable package gaining control in a mode that is independent of the implicit in web hardware and operating system.

Task-4

Introduction:

In this undertaking Peer-to-peer ( P2P ) networking engineering has resulted in the creative activity of radical applications in countries such as instant messaging, file sharing, shared workspaces, distributed depositories and audio/visual cyclosis. Most campaigners should be Familiar with normally known P2P applications. Unfortunately some people have been speedy to work this engineering and new exposures have been introduced into networked systems.

FIVE Common exposures of P2P webs:

P2P webs have five exposures those are common with traditional webs these are given below-

  1. Bandwidth necessitating. Many ISPs are wise to the P2P thoughts and unluckily one individual downloading the latest Adobe plans illicitly and another individual downloading a legal Linux distribution ; make non distinguish between these most ISPs effort to form or restrict bandwidth in order to forestall P2P use. It is wholly few blocks.
  2. Data amendss. This is less common with Bit Torrent and Ares, as they offer native methods of look intoing informations unity during response ; hence overall it ‘s still a job with a batch of P2P applications. Even in plans that do back up informations unity checking, unluckily downloaded informations can be damage so merely once more downloaded retransfer.
  3. Exposure. The Full chief construct of P2P is root on linking to anyone else in order to portion files. There have no thought whether that anyone else is a FBI agent.
  4. Back doors. More similar P2P plans come packed with spyware, adware or another signifier of unlike and unsought package or plan. The Most bulk of common P2P plans to work decently require specific web and firewall scenes. That an mean individual put ining Limewire, these will hold spyware and others running on their and a port or two unfastened at all times which would usually non be unfastened.
  5. Signal to resound ratio. While downloading files, these are about impossible to state a legitimate transcript of a desired file from a bogus one, one that is infected with a virus or other malware. It is easy to descry these things in the wild, but to your mean individual, it is non. So when person hears they merely hunt for it and download – but wind up infected in some manner.

The exposures peculiar to the P2P engineering:

  1. Bugs:
  2. In order for P2P file-sharing applications to work the appropriate package must be installed on the users system. If this package contains a bug it could expose the web to a figure of hazards e.g. struggle with concern applications or even crash the system.

  3. Authentication:
  4. There is besides the issue of hallmark and mandate. When utilizing P2P you have to be able to find whether the equal accessing information is who they truly say they are and that they entree merely authorised information. It is a curious exposure of p2p.

  5. General Security:
  6. P2P portions many security jobs and solutions with webs and distributed systems such as informations fiddling, undependable conveyance, latency jobs, designation jobs etc

  7. Adding and Removing Users:
  8. There must be an impracticable method to add or cancel users to the web create increasing exposure. The system is under the most menace from users and former users who know the Immigration and Naturalization Services and outs of the system e.g. the being of trapdoors etc.

  9. Private Business on a Public Network:
  10. Many companies conduct private concern on a public web. This leads to an exposure to assorted security hazards. These hazards must be references in order to avoid the liability this usage entails.

Detail the countermeasures that could be implemented to support an endeavor from possible onslaughts:

This subdivision speci? es the usual information corruptness. Backdoor and Bandwidth joging these malicious activities and countermeasures for in P2P web these are given bellow-

  1. Countermeasure of Backdoor onslaughts:
  2. On Windows computing machines, three tools normally used by interlopers to derive distant entree to any computing machine are Back Orifice, Netbus, and Sub Seven. These back door or remote disposal plans, one time installed, let other people to entree and command your computing machine.

  3. Data Corruptnesss:
  4. Supplying high handiness and the ability to portion informations despite the weak connectivity of nomadic calculating raises the job of swearing replicated informations waiters that may be corrupt. This occurs when less security. We describe the sorts of jobs one must be prepared to cover with, observing that even users of secured, nondashportable computing machines are at hazard if waiters trust all authorised equals.

  5. Adding and taking users:
  6. The possibilities of bogus root public key installing by an aggressor in user ‘s Personal computer and demo its countermeasures. The root public keys are used to verify the certifications for applet suppliers. Therefore the interpolation of false public keys allows arbitrary Numberss of knave application to be executed on a user ‘s Personal computer. We propose a protection method for put ining bogus root keys in a user ‘s Personal computer.

Pick THREE P2P applications of pick and so depict the exposures of each of these:

Many concerns have been inspired by the success P2P applications and are busily brainstorming potentially interesting new P2P package. However, some in the networking community believe that the success of Napster, Kazaa and other P2P applications have small to make with engineering and more to make with buccaneering

Popular P2P Applications

eMule:

eMule ‘s Queue and Credit systemhelps to ensurethat everyone will acquire the file he wants by advancing those that upload back to the web. eMule besides allows you to utilize really complex Boolean searches that make the hunts much more flexible.

Vulnerability:

eMule militias all the diskspace it will necessitate for the complete file, no affair how much it downloaded already. Suppose you have 10GB of free infinite, and you are downloading a 1GB file. This file is difficult to happen, so you ca n’t download more than 10MB per day.eMule militias 1GB every bit shortly as you start downloading. This means that for 100 yearss, you have 1GB less diskspace. So disadvantage is that you miss a batch of infinite for a long clip.

Bit Torrent:

A BitTorrent client is any plan that implements the BitTorrent protocol. Each client is capable of fixing, bespeaking, and conveying any type of computing machine fileover a web, utilizing the protocol. A equal is any computing machine running an case of a client.To portion a file or group of files, a equal foremost creates a little file called a downpour.

Vulnerability:

The exposure of Bit Torrents is that they can max out your broadband bandwidth ( up & A ; down ) but you get your files faster. The exposures are that the Bit Torrents come & amp ; travel really rapidly. So you ‘ve got ta be speedy.

Limewire:

LimeWire is a popular P2P file sharing plan utilizing the Gnutella web that supports a broad scope of linguistic communications and runing systems including Windows, Mac and Linux. The plan features an unfastened community of similar to optimise hunt public presentation

Vulnerability:

Vulnerability of File hosting and P2P are immense and in both instances you would acquire a get a difference of sentiment when inquiring a user which they prefer. There are many on-line hunt engines available now that can happen file hosted links, people can make a hunt for files to download without holding to fall back to peer-to-peer plans. This is a immense hazard to privateness and may turn people off from utilizing P2P.Rapid portion is one of the most popular file-hosting web sites.

Mentions

  1. www.dis.org/filez/vun-1s.pdf
  2. hypertext transfer protocol: //www.slideshare.net/eroglu/t-c-p-i-p-weaknesses-and-solutions
  3. hypertext transfer protocol: //www.governmentsecurity.org/forum/index.php? showtopic=1753
  4. hypertext transfer protocol: //mudji.net/press/ ? p=152
  5. hypertext transfer protocol: //whirlpool.net.au/wiki/ ? tag=setting_up_unsecured_wireless
  6. hypertext transfer protocol: //www.linuxsecurity.com/resource_files/documentation/tcpip-security.html
  7. hypertext transfer protocol: //www.whichssl.com/what_is_ssl.html
  8. hypertext transfer protocol: //www.wbservr.com/ssl.html
  9. hypertext transfer protocol: //www.topbits.com/what-is-kerberos.html
  10. hypertext transfer protocol: //etutorials.org/Server+Administration/securing+windows+server+2003/Chapter+8.+IP+Security/8.2+How+Does+IPSec+Work/ ]
  11. hypertext transfer protocol: //uk.answers.yahoo.com/question/index? qid=20100319003505AApij3J
  12. hypertext transfer protocol: //all.net/CID/Attack/papers/PeerToPeer.html
  13. hypertext transfer protocol: //uk.answers.yahoo.com/question/index? qid=20070331023318AARSK4N
  14. hypertext transfer protocol: //en.wikipedia.org/wiki/Peer-to-peer
  15. hypertext transfer protocol: //www.dmst.aueb.gr/dds/pubs/jrnl/2004-CompSec-p2pav/html/VAS04.html
  16. hypertext transfer protocol: //en.wikipedia.org/wiki/Denial-of-service_attack
  17. hypertext transfer protocol: //uk.answers.yahoo.com/question/index? qid=20100319003505AApij3J
  18. hypertext transfer protocol: //all.net/CID/Attack/papers/PeerToPeer.html
  19. hypertext transfer protocol: //netsecurity.about.com/cs/hackertools/a/aa030504.htm
  20. hypertext transfer protocol: //en.kioskea.net/contents/detection/ids.php3
  21. hypertext transfer protocol: //en.wikipedia.org/wiki/Intrusion_prevention_system
  22. hypertext transfer protocol: //nsslabs.com/white-papers/gigabit-intrusion-detection-systems-ids.html
  23. hypertext transfer protocol: //sectools.org/ids.html

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