Network security presentation that briefly covers the aspect of security in networks. The slide consists of procedural steps for network security then some of the important network security components are described. To give it a practical approach, attacks on networks are also covered.
( Edureka Cybersecurity Course: https://www.edureka.co/cybersecurity-certification-training)
This Edureka video gives an introduction to Network Security and its nuances. Topics covered in this video are:
1. Need for Network Security
2. What is Network Security
3. Security in the Network, Transport and Application Layer
4. Network Security for Business
Intrusion Detection Systems and Intrusion Prevention Systems Cleverence Kombe
Intrusion detection system (IDS) is software that automates the intrusion detection process. The primary responsibility of an IDS is to detect unwanted and malicious activities. Intrusion prevention system (IPS) is software that has all the capabilities of an intrusion detection system and can also attempt to stop possible incidents.
Social engineering and human error present the single biggest threat to companies in 2017. In fact, 60% of enterprise companies were targeted by social engineering attacks within the last year. As cyber security automation practices get better, attackers are increasingly relying on social engineering to make their way into systems and networks.
Visit- https://www.siemplify.co/
Prevention based mechanism for attacks in Network SecurityEditor IJMTER
Network Security has become vital in today’s information technology era, as a result
of that numerous techniques are a unit adopted to bypass it. Network administrator has to be
compelled to manage with the recent advancements in each the hardware and software system fields
for their betterment of the user’s knowledge. This paper outlines the varied attack strategies in the
field of Networking and numerous prevention mechanisms against them.
( Edureka Cybersecurity Course: https://www.edureka.co/cybersecurity-certification-training)
This Edureka video gives an introduction to Network Security and its nuances. Topics covered in this video are:
1. Need for Network Security
2. What is Network Security
3. Security in the Network, Transport and Application Layer
4. Network Security for Business
Intrusion Detection Systems and Intrusion Prevention Systems Cleverence Kombe
Intrusion detection system (IDS) is software that automates the intrusion detection process. The primary responsibility of an IDS is to detect unwanted and malicious activities. Intrusion prevention system (IPS) is software that has all the capabilities of an intrusion detection system and can also attempt to stop possible incidents.
Social engineering and human error present the single biggest threat to companies in 2017. In fact, 60% of enterprise companies were targeted by social engineering attacks within the last year. As cyber security automation practices get better, attackers are increasingly relying on social engineering to make their way into systems and networks.
Visit- https://www.siemplify.co/
Prevention based mechanism for attacks in Network SecurityEditor IJMTER
Network Security has become vital in today’s information technology era, as a result
of that numerous techniques are a unit adopted to bypass it. Network administrator has to be
compelled to manage with the recent advancements in each the hardware and software system fields
for their betterment of the user’s knowledge. This paper outlines the varied attack strategies in the
field of Networking and numerous prevention mechanisms against them.
Module 3 Lectures 6 hrs.
Infrastructure and Network Security: Introduction to System Security, Server Security,
OS Security, Physical Security, Introduction to Networks, Network packet Sniffing,
Network Design Simulation. DOS/DDOS attacks. Asset Management and Audits,
Vulnerabilities and Attacks. Intrusion detection and Prevention Techniques, Host based
Intrusion prevention Systems, Security Information Management, Network Session
Analysis, System Integrity Validation.
Open Source/ Free/ Trial Tools: DOS Attacks, DDOS attacks, Wireshark, Cain & abel,
iptables/
Windows Firewall, snort, suricata, fail2ban
CompTIA exam study guide presentations by instructor Brian Ferrill, PACE-IT (Progressive, Accelerated Certifications for Employment in Information Technology)
"Funded by the Department of Labor, Employment and Training Administration, Grant #TC-23745-12-60-A-53"
Learn more about the PACE-IT Online program: www.edcc.edu/pace-it
Cyber Warfare is the current single greatest emerging threat to National Security. Network security has become an essential component of any computer network. As computer networks and systems become ever more fundamental to modern society, concerns about security has become increasingly important. There are a multitude of different applications open source and proprietary available for the protection +-system administrator, to decide on the most suitable format for their purpose requires knowledge of the available safety measures, their features and how they affect the quality of service, as well as the kind of data they will be allowing through un flagged. A majority of methods currently used to ensure the quality of a networks service are signature based. From this information, and details on the specifics of popular applications and their implementation methods, we have carried through the ideas, incorporating our own opinions, to formulate suggestions on how this could be done on a general level. The main objective was to design and develop an Intrusion Detection System. While the minor objectives were to; Design a port scanner to determine potential threats and mitigation techniques to withstand these attacks. Implement the system on a host and Run and test the designed IDS. In this project we set out to develop a Honey Pot IDS System. It would make it easy to listen on a range of ports and emulate a network protocol to track and identify any individuals trying to connect to your system. This IDS will use the following design approaches: Event correlation, Log analysis, Alerting, and policy enforcement. Intrusion Detection Systems (IDSs) attempt to identify unauthorized use, misuse, and abuse of computer systems. In response to the growth in the use and development of IDSs, we have developed a methodology for testing IDSs. The methodology consists of techniques from the field of software testing which we have adapted for the specific purpose of testing IDSs. In this paper, we identify a set of general IDS performance objectives which is the basis for the methodology. We present the details of the methodology, including strategies for test-case selection and specific testing procedures. We include quantitative results from testing experiments on the Network Security Monitor (NSM), an IDS developed at UC Davis. We present an overview of the software platform that we have used to create user-simulation scripts for testing experiments. The platform consists of the UNIX tool expect and enhancements that we have developed, including mechanisms for concurrent scripts and a record-and-replay feature. We also provide background information on intrusions and IDSs to motivate our work.
Welcome to International Journal of Engineering Research and Development (IJERD)IJERD Editor
journal publishing, how to publish research paper, Call For research paper, international journal, publishing a paper, IJERD, journal of science and technology, how to get a research paper published, publishing a paper, publishing of journal, publishing of research paper, reserach and review articles, IJERD Journal, How to publish your research paper, publish research paper, open access engineering journal, Engineering journal, Mathemetics journal, Physics journal, Chemistry journal, Computer Engineering, Computer Science journal, how to submit your paper, peer reviw journal, indexed journal, reserach and review articles, engineering journal, www.ijerd.com, research journals,
yahoo journals, bing journals, International Journal of Engineering Research and Development, google journals, hard copy of journal
The nature of wireless networks itself created new vulnerabilities that in the classical wired networks do
not exist. This results in an evolutional requirement to implement new sophisticated security mechanism in
form of Intrusion Detection and Prevention Systems. This paper deals with security issues of small office
and home office wireless networks. The goal of our work is to design and evaluate wireless IDPS with use
of packet injection method. Decrease of attacker’s traffic by 95% was observed when compared to
attacker’s traffic without deployment of proposed IDPS system.
Bridging the Digital Gap Brad Spiegel Macon, GA Initiative.pptxBrad Spiegel Macon GA
Brad Spiegel Macon GA’s journey exemplifies the profound impact that one individual can have on their community. Through his unwavering dedication to digital inclusion, he’s not only bridging the gap in Macon but also setting an example for others to follow.
This 7-second Brain Wave Ritual Attracts Money To You.!nirahealhty
Discover the power of a simple 7-second brain wave ritual that can attract wealth and abundance into your life. By tapping into specific brain frequencies, this technique helps you manifest financial success effortlessly. Ready to transform your financial future? Try this powerful ritual and start attracting money today!
1.Wireless Communication System_Wireless communication is a broad term that i...JeyaPerumal1
Wireless communication involves the transmission of information over a distance without the help of wires, cables or any other forms of electrical conductors.
Wireless communication is a broad term that incorporates all procedures and forms of connecting and communicating between two or more devices using a wireless signal through wireless communication technologies and devices.
Features of Wireless Communication
The evolution of wireless technology has brought many advancements with its effective features.
The transmitted distance can be anywhere between a few meters (for example, a television's remote control) and thousands of kilometers (for example, radio communication).
Wireless communication can be used for cellular telephony, wireless access to the internet, wireless home networking, and so on.
Multi-cluster Kubernetes Networking- Patterns, Projects and GuidelinesSanjeev Rampal
Talk presented at Kubernetes Community Day, New York, May 2024.
Technical summary of Multi-Cluster Kubernetes Networking architectures with focus on 4 key topics.
1) Key patterns for Multi-cluster architectures
2) Architectural comparison of several OSS/ CNCF projects to address these patterns
3) Evolution trends for the APIs of these projects
4) Some design recommendations & guidelines for adopting/ deploying these solutions.
# Internet Security: Safeguarding Your Digital World
In the contemporary digital age, the internet is a cornerstone of our daily lives. It connects us to vast amounts of information, provides platforms for communication, enables commerce, and offers endless entertainment. However, with these conveniences come significant security challenges. Internet security is essential to protect our digital identities, sensitive data, and overall online experience. This comprehensive guide explores the multifaceted world of internet security, providing insights into its importance, common threats, and effective strategies to safeguard your digital world.
## Understanding Internet Security
Internet security encompasses the measures and protocols used to protect information, devices, and networks from unauthorized access, attacks, and damage. It involves a wide range of practices designed to safeguard data confidentiality, integrity, and availability. Effective internet security is crucial for individuals, businesses, and governments alike, as cyber threats continue to evolve in complexity and scale.
### Key Components of Internet Security
1. **Confidentiality**: Ensuring that information is accessible only to those authorized to access it.
2. **Integrity**: Protecting information from being altered or tampered with by unauthorized parties.
3. **Availability**: Ensuring that authorized users have reliable access to information and resources when needed.
## Common Internet Security Threats
Cyber threats are numerous and constantly evolving. Understanding these threats is the first step in protecting against them. Some of the most common internet security threats include:
### Malware
Malware, or malicious software, is designed to harm, exploit, or otherwise compromise a device, network, or service. Common types of malware include:
- **Viruses**: Programs that attach themselves to legitimate software and replicate, spreading to other programs and files.
- **Worms**: Standalone malware that replicates itself to spread to other computers.
- **Trojan Horses**: Malicious software disguised as legitimate software.
- **Ransomware**: Malware that encrypts a user's files and demands a ransom for the decryption key.
- **Spyware**: Software that secretly monitors and collects user information.
### Phishing
Phishing is a social engineering attack that aims to steal sensitive information such as usernames, passwords, and credit card details. Attackers often masquerade as trusted entities in email or other communication channels, tricking victims into providing their information.
### Man-in-the-Middle (MitM) Attacks
MitM attacks occur when an attacker intercepts and potentially alters communication between two parties without their knowledge. This can lead to the unauthorized acquisition of sensitive information.
### Denial-of-Service (DoS) and Distributed Denial-of-Service (DDoS) Attacks
APNIC Foundation, presented by Ellisha Heppner at the PNG DNS Forum 2024APNIC
Ellisha Heppner, Grant Management Lead, presented an update on APNIC Foundation to the PNG DNS Forum held from 6 to 10 May, 2024 in Port Moresby, Papua New Guinea.
3. Introduction
Information on networks may get compromised by
unauthorized access,
misuse,
malfunction,
modification,
destruction, or improper disclosure.
To prevent and monitor the unwanted threats policies
and practices are adopted.
The process of taking physical and software
preventative measures to protect the networking
infrastructure is network security.
4. Network security process (1)
Authentication-
1. One-factor authentication-
This requires just one detail, password, to authenticate a
user-name.
2. Two-factor authentication-
Authentication is done with the help of secondary device such
as a mobile phone, ATM card, security token etc.
3. Three-factor authentication-
This authentication procedure is bounded to user’s body
making the authentication unique for each user. Fingerprint
scan, retinal scan are some of the ways to implement this
authentication technique.
5. Access control-
1. Firewall-
Enforces access policies such as
what services are allowed to be
accessed by the network users.
Though firewall are effective to prevent unauthorized access, but it
fails in dealing with potentially harmful content.
2. Anti-virus software, IPS/IDS-
Anti-virus software or intrusion prevention system (IPS) find
and tackle malwares while Intrusion detection system (IDS)
helps monitor the network.
Network security process (2)
Figure :Pictorial representation of firewall’s worki
6. Network security components (1)
Encryption-
It is a process in cryptography in which a message or
information is encoded in such a way that only authorized
users (those who have decryption key) can access it.
Information or message, plaintext, is encrypted using an
encryption algorithm generating cipher-text that can only
be read after decryption, process of decrypting.
Two types-
Public key encryption
Private key encryption
8. Network security components (3)
Wireless security-
Prevention of unauthorized access or damage to
computers using wireless networks.
Types of wireless security-
Wired Equivalent Privacy (WEP)-
Introduced to provide data confidentiality comparable to that of wired
networks.
Succeeded completely by WPA in 2003.
Wi-Fi Protected Access (WPA)-
WPA and WPA2 are the two protocols developed by Wi-Fi alliance in
2003.
WPA3 was launched in Jan 2018 with better security than WPA2
10. Network Attacks (2)
Browser attack/Man-in-the-middle-
Most common type of network attack as per the survey.
Internet surfers are tricked into downloading malware that
is disguised as an update or an application.
Cyber criminals target popular OS and apps by exploiting.
11. Network Attacks (3)
Browser attack/Man-in-the-middle-
Prevention measures-
“Detecting a MITM attack can be very difficult as user does not realize
about the data traffic interception until data is modified. Taking
precautions in this attack is much better than cure.”- ComputerWeekly
Setting up an Intrusion detection system that monitors the
network and if someone tries to hijack, it gives immediate
alerts.
Use of Virtual Private Network (VPN) that creates
encrypted tunnels providing additional security.
12. Network Attacks (4)
Brute force attack-
A method of defeating a cryptography scheme by trying a
large number of possibilities.
The attacker systematically checks all possible
passwords and passphrases until the correct one is
found.
A dictionary attack is similar and tries words in a dictionary
— or a list of common passwords — instead of all possible
passwords.
13. Network Attacks (5)
Brute force attack-
Prevention measures-
Long and secure passwords, containing special
characters, is first and most important prevention measure
to be taken.
Use of strong encryption algorithms like SHA-512.
Login limits should be set on the services that accept
login. Server software is generally set to do this out of the
box, as it’s a good security practice.
Occasionally changing passwords in a period of time.
14. Network Attacks (6)
DoS/DDoS attack-
Making service unavailable temporarily or indefinitely by
flooding the network with useless traffic in order to
overload systems.
In DoS attack, typically one system is involved to flood a
network whereas in DDoS attack multiple systems and
multiple networks are involved.
Due to the overloading of requests on a network,
legitimate users get a difficulty in accessing the services.
16. Network Attacks (6)
DoS/DDoS attack-
Prevention measures-
Limiting traffic by authentication of users, which can be
done by configuring servers.
Using Firewall or Antivirus programs on the network.
Keeping a check on the suspicious activities, which may
give a hint on starting stage of the attack.
“With 1.35 terabits per second of traffic hit, Github, on 28 Feb 2018
survived the biggest DDoS attack ever recorded in the history.”
17. Conclusion
Procedural steps of network security are discussed,
comprising of authentication followed by access
control.
Crucial network security components that enforces
and enriches the security over a network help in
protecting a network.
Network attacks that are common among the
internet world are visited to get a better
understanding of the real world.
“No one connected to a network is safe, literally no one. Knowledge of
getting compromised is way less than compromising a network.”-
Anonymous
