How To Learn The Network Security
Slide berikut merupakan slide yang berisikan dasar-dasar bagi kita dalam memahami konsep keamanan jaringan komputer, baik dari sisi inftrastruktur, teknologi dan paradigma bagi pengguna.
Materi yang diberikan sudah disusun oleh Pakar yang merupakan Trainer CEH dan memang berkompeten dibidang keamanan jaringan.
Slide ini saya dapatkan dari beliau saat mengikut training Certified Computer Security Officer (CCSO) dan Certified Computer Security Analyst (CCSA) dari beliau.
Semoga bermanfaat sebagai acuan bagi kita untuk belajar tentang keamanan jaringan komputer.
Terimakasih
While computer systems today have some of the best security systems ever, they are more vulnerable than ever before.
This vulnerability stems from the world-wide access to computer systems via the Internet.
Computer and network security comes in many forms, including encryption algorithms, access to facilities, digital signatures, and using fingerprints and face scans as passwords.
How To Learn The Network Security
Slide berikut merupakan slide yang berisikan dasar-dasar bagi kita dalam memahami konsep keamanan jaringan komputer, baik dari sisi inftrastruktur, teknologi dan paradigma bagi pengguna.
Materi yang diberikan sudah disusun oleh Pakar yang merupakan Trainer CEH dan memang berkompeten dibidang keamanan jaringan.
Slide ini saya dapatkan dari beliau saat mengikut training Certified Computer Security Officer (CCSO) dan Certified Computer Security Analyst (CCSA) dari beliau.
Semoga bermanfaat sebagai acuan bagi kita untuk belajar tentang keamanan jaringan komputer.
Terimakasih
While computer systems today have some of the best security systems ever, they are more vulnerable than ever before.
This vulnerability stems from the world-wide access to computer systems via the Internet.
Computer and network security comes in many forms, including encryption algorithms, access to facilities, digital signatures, and using fingerprints and face scans as passwords.
With the explosion of the public Internet and e-commerce, private computers and computer networks, if not adequately secured are increasingly vulnerable to damaging attacks. Hackers, viruses, vindictive employees and even human error all represent
clear and present dangers to networks. And all computer users from the most casual Internet surfers to large enterprises could be affected by network security breaches. However, security breaches can often be easily prevented. How? This white paper provides you an overview of the most common network security threats and its solution which protects you and your organization from threats, hackers and ensures that the
data traveling across your networks is safe.
Security Attack Analysis for Finding and Stopping Network AttacksSavvius, Inc
Network breaches are on the rise, and the consequences are getting more dire. Needless to say, you don't want to be the next Target.You've invested in security tools like firewalls and IPS systems. But today's stealthy attacks can still get through. When you suspect an attack, you need your insurance policy—network forensics.
In this seminar, you'll learn how network forensics—network recording along with powerful search and analysis tools—can enable your in-house security team to track down, verify, and characterize attacks.
You'll also learn about the requirements for effective forensics on today's 10G and 40G networks.
And you'll learn some best practices for configuring captures to help you and your team pinpoint and remediate anomalous behavior that could signal an attack.
THREATS are possible attacks.
It includes
The spread of computer viruses
Infiltration and theft of data from external hackers
Engineered network overloads triggered by malicious mass e-mailing
Misuse of computer resources and confidential information by employees
Unauthorized financial transactions and other kinds of computer fraud conducted in the company's name
Electronic inspection of corporate computer data by outside parties
Damage from failure, fire, or natural disasters
With the explosion of the public Internet and e-commerce, private computers and computer networks, if not adequately secured are increasingly vulnerable to damaging attacks. Hackers, viruses, vindictive employees and even human error all represent
clear and present dangers to networks. And all computer users from the most casual Internet surfers to large enterprises could be affected by network security breaches. However, security breaches can often be easily prevented. How? This white paper provides you an overview of the most common network security threats and its solution which protects you and your organization from threats, hackers and ensures that the
data traveling across your networks is safe.
Security Attack Analysis for Finding and Stopping Network AttacksSavvius, Inc
Network breaches are on the rise, and the consequences are getting more dire. Needless to say, you don't want to be the next Target.You've invested in security tools like firewalls and IPS systems. But today's stealthy attacks can still get through. When you suspect an attack, you need your insurance policy—network forensics.
In this seminar, you'll learn how network forensics—network recording along with powerful search and analysis tools—can enable your in-house security team to track down, verify, and characterize attacks.
You'll also learn about the requirements for effective forensics on today's 10G and 40G networks.
And you'll learn some best practices for configuring captures to help you and your team pinpoint and remediate anomalous behavior that could signal an attack.
THREATS are possible attacks.
It includes
The spread of computer viruses
Infiltration and theft of data from external hackers
Engineered network overloads triggered by malicious mass e-mailing
Misuse of computer resources and confidential information by employees
Unauthorized financial transactions and other kinds of computer fraud conducted in the company's name
Electronic inspection of corporate computer data by outside parties
Damage from failure, fire, or natural disasters
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
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
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
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
Information Security Management. Security solutions copyyuliana_mar
Information Security Management. Introduction.
By Yuliana Martirosyan,
Based on Bell G. Reggard, Information Security Management. Concepts and Practices.
The presentation provide the basic and advance concept of memory and file system with their binding and linking concepts. It also include paging, disk and related concepts
It is for the new users those don't have much knowledge regarding IT Security. Here i focus on Windows In built firewall, Comodo, Zone Alarm and Out Post pro configuration basics.
This tutorial gives very good understanding on Computer Networks protocols After completing this tutorial, You will find yourself at a moderate level of expertise in knowing Advance Networking protocols (, from where you can take yourself to next levels.
Encryption in Microsoft 365 - ExpertsLive Netherlands 2024Albert Hoitingh
In this session I delve into the encryption technology used in Microsoft 365 and Microsoft Purview. Including the concepts of Customer Key and Double Key Encryption.
DevOps and Testing slides at DASA ConnectKari Kakkonen
My and Rik Marselis slides at 30.5.2024 DASA Connect conference. We discuss about what is testing, then what is agile testing and finally what is Testing in DevOps. Finally we had lovely workshop with the participants trying to find out different ways to think about quality and testing in different parts of the DevOps infinity loop.
Software Delivery At the Speed of AI: Inflectra Invests In AI-Powered QualityInflectra
In this insightful webinar, Inflectra explores how artificial intelligence (AI) is transforming software development and testing. Discover how AI-powered tools are revolutionizing every stage of the software development lifecycle (SDLC), from design and prototyping to testing, deployment, and monitoring.
Learn about:
• The Future of Testing: How AI is shifting testing towards verification, analysis, and higher-level skills, while reducing repetitive tasks.
• Test Automation: How AI-powered test case generation, optimization, and self-healing tests are making testing more efficient and effective.
• Visual Testing: Explore the emerging capabilities of AI in visual testing and how it's set to revolutionize UI verification.
• Inflectra's AI Solutions: See demonstrations of Inflectra's cutting-edge AI tools like the ChatGPT plugin and Azure Open AI platform, designed to streamline your testing process.
Whether you're a developer, tester, or QA professional, this webinar will give you valuable insights into how AI is shaping the future of software delivery.
Generating a custom Ruby SDK for your web service or Rails API using Smithyg2nightmarescribd
Have you ever wanted a Ruby client API to communicate with your web service? Smithy is a protocol-agnostic language for defining services and SDKs. Smithy Ruby is an implementation of Smithy that generates a Ruby SDK using a Smithy model. In this talk, we will explore Smithy and Smithy Ruby to learn how to generate custom feature-rich SDKs that can communicate with any web service, such as a Rails JSON API.
State of ICS and IoT Cyber Threat Landscape Report 2024 previewPrayukth K V
The IoT and OT threat landscape report has been prepared by the Threat Research Team at Sectrio using data from Sectrio, cyber threat intelligence farming facilities spread across over 85 cities around the world. In addition, Sectrio also runs AI-based advanced threat and payload engagement facilities that serve as sinks to attract and engage sophisticated threat actors, and newer malware including new variants and latent threats that are at an earlier stage of development.
The latest edition of the OT/ICS and IoT security Threat Landscape Report 2024 also covers:
State of global ICS asset and network exposure
Sectoral targets and attacks as well as the cost of ransom
Global APT activity, AI usage, actor and tactic profiles, and implications
Rise in volumes of AI-powered cyberattacks
Major cyber events in 2024
Malware and malicious payload trends
Cyberattack types and targets
Vulnerability exploit attempts on CVEs
Attacks on counties – USA
Expansion of bot farms – how, where, and why
In-depth analysis of the cyber threat landscape across North America, South America, Europe, APAC, and the Middle East
Why are attacks on smart factories rising?
Cyber risk predictions
Axis of attacks – Europe
Systemic attacks in the Middle East
Download the full report from here:
https://sectrio.com/resources/ot-threat-landscape-reports/sectrio-releases-ot-ics-and-iot-security-threat-landscape-report-2024/
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
UiPath Test Automation using UiPath Test Suite series, part 4DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 4. In this session, we will cover Test Manager overview along with SAP heatmap.
The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
What will you get from this session?
1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
Topics covered:
Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Builder.ai Founder Sachin Dev Duggal's Strategic Approach to Create an Innova...Ramesh Iyer
In today's fast-changing business world, Companies that adapt and embrace new ideas often need help to keep up with the competition. However, fostering a culture of innovation takes much work. It takes vision, leadership and willingness to take risks in the right proportion. Sachin Dev Duggal, co-founder of Builder.ai, has perfected the art of this balance, creating a company culture where creativity and growth are nurtured at each stage.
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
Securing your Kubernetes cluster_ a step-by-step guide to success !KatiaHIMEUR1
Today, after several years of existence, an extremely active community and an ultra-dynamic ecosystem, Kubernetes has established itself as the de facto standard in container orchestration. Thanks to a wide range of managed services, it has never been so easy to set up a ready-to-use Kubernetes cluster.
However, this ease of use means that the subject of security in Kubernetes is often left for later, or even neglected. This exposes companies to significant risks.
In this talk, I'll show you step-by-step how to secure your Kubernetes cluster for greater peace of mind and reliability.
Kubernetes & AI - Beauty and the Beast !?! @KCD Istanbul 2024Tobias Schneck
As AI technology is pushing into IT I was wondering myself, as an “infrastructure container kubernetes guy”, how get this fancy AI technology get managed from an infrastructure operational view? Is it possible to apply our lovely cloud native principals as well? What benefit’s both technologies could bring to each other?
Let me take this questions and provide you a short journey through existing deployment models and use cases for AI software. On practical examples, we discuss what cloud/on-premise strategy we may need for applying it to our own infrastructure to get it to work from an enterprise perspective. I want to give an overview about infrastructure requirements and technologies, what could be beneficial or limiting your AI use cases in an enterprise environment. An interactive Demo will give you some insides, what approaches I got already working for real.
3. Basic Concepts
TCP/IP
TCP Uses a Fixed Connection
TCP is for communication between applications.
If one application wants to communicate with another via TCP, it sends a communication request. This request must
be sent to an exact address. After a "handshake" between the two applications, TCP will set up a "full-duplex"
communication between the two applications.
The "full-duplex" communication will occupy the communication line between the two computers until it is closed
by one of the two applications.
UDP is very similar to TCP, but simpler and less reliable.
IP is Connection-Less
IP is for communication between computers.
IP is a "connection-less" communication protocol.
IP does not occupy the communication line between two computers. IP reduces the need for network lines. Each
line can be used for communication between many different computers at the same time.
With IP, messages (or other data) are broken up into small independent "packets" and sent between computers via
the Internet.
IP is responsible for "routing" each packet to the correct destination.
@2010 PTC
4. Basic Concepts
Routing
Routing
is the method in which data finds its destination from one computer to the next. In the
Internet there are 3 major aspects of routing.
1. Physical Address Finding
2. Determination of inter-network gateways
3. Numeric and symbolic Addresses
If
a computer wishes to transmit IP datagram it needs to encapsulate the physical address of the
destination network device in the frame. This address can be achieved by using the table that will
map the IP address with the physical address. Such table can be configured into a file that can be
read into the memory at the boot up time. Computer normally uses the Address Resolution
Protocol (ARP), which operates dynamically to maintain the translation table.
@2010 PTC
5. Basic Concepts
DNS
The
domain name system (DNS) is the way that Internet domain names are located
and translated into Internet Protocol addresses. A domain name is a meaningful and easyto-remember "handle" for an Internet address.
Because
maintaining a central list of domain name/IP address correspondences would
be impractical, the lists of domain names and IP addresses are distributed throughout the
Internet in a hierarchy of authority. There is probably a DNS server within close
geographic proximity to your access provider that maps the domain names in your
Internet requests or forwards them to other servers in the Internet.
@2010 PTC
6. Basic Concepts
NAT (Network Address Translation or Network Address Translator) is the translation of an Internet Protocol
address (IP address) used within one network to a different IP address known within another network. One
network is designated the inside network and the other is the outside.
Typically, a
company maps its local inside network addresses to one or more global outside IP addresses and
unmaps the global IP addresses on incoming packets back into local IP addresses. This helps ensure security since
each outgoing or incoming request must go through a translation process that also offers the opportunity to
qualify or authenticate the request or match it to a previous request. NAT also conserves on the number of
global IP addresses that a company needs and it lets the company use a single IP address in its communication
with the world.
NAT
is included as part of a router and is often part of a corporate firewall. Network administrators create a
NAT table that does the global-to-local and local-to-global IP address mapping. NAT can also be used in
conjunction with policy routing. NAT can be statically defined or it can be set up to dynamically translate from and
to a pool of IP addresses. Cisco's version of NAT lets an administrator create tables that map:
A
local IP address to one global IP address statically
A
local IP address to any of a rotating pool of global IP addresses that a company may have
A
local IP address plus a particular TCP port to a global IP address or one in a pool of them
A
global IP address to any of a pool of local IP addresses on a round-robin basis
@2010 PTC
7. Basic Concepts
Firewall
A
system designed to prevent unauthorized access to or from a private network. Firewalls can be
implemented in both hardware and software, or a combination of both. Firewalls are frequently used
to prevent unauthorized Internet users from accessing private networks connected to the Internet,
especially intranets. All messages entering or leaving the intranet pass through the firewall, which
examines each message and blocks those that do not meet the specified security criteria.
There
are several types of firewall techniques:
Packet
filter: Looks at each packet entering or leaving the network and accepts or rejects it based
on user-defined rules. Packet filtering is fairly effective and transparent to users, but it is difficult to
configure. In addition, it is susceptible to IP spoofing. Application gateway: Applies security
mechanisms to specific applications, such as FTP and Telnet servers. This is very effective, but can
impose a performance degradation. Circuit-level gateway: Applies security mechanisms when a TCP
or UDP connection is established. Once the connection has been made, packets can flow between
the hosts without further checking. Proxy server: Intercepts all messages entering and leaving the
network. The proxy server effectively hides the true network addresses. In practice, many firewalls
use two or more of these techniques in concert. A firewall is considered a first line of defense in
protecting private information. For greater security, data can be encrypted.
@2010 PTC
8. Basic Concepts
Tunneling
Tunneling, also known as "port forwarding," is the transmission of data intended
for use only within a private, usually corporate network through a public
network in such a way that the routing nodes in the public network are unaware
that the transmission is part of a private network.Tunneling is generally done by
encapsulating the private network data and protocol information within the
public network transmission units so that the private network protocol
information appears to the public network as data.Tunneling allows the use of
the Internet, which is a public network, to convey data on behalf of a private
network.
The PPTP makes it possible for authorized users to gain access to a private
network - called a virtual private network (VPN) -through an Internet service
provider (ISP) or online service. Another commonly used tunneling protocol is
generic routing encapsulation (GRE), developed by Cisco Systems. There are
numerous, less common tunneling protocols.
Application uses Remote Method Invocation (RMI) tunneling incase of Split
Configuration.
@2010 PTC
9. Basic Concepts
In computer networking, DMZ is a firewall configuration for securing local area networks (LANs). In a DMZ configuration,
most computers on the LAN run behind a firewall connected to a public network like the Internet. One or more computers
also run outside the firewall, in the DMZ. Those computers on the outside intercept traffic and broker requests for the rest
of the LAN, adding an extra layer of protection for computers behind the firewall.
Traditional DMZs allow computers behind the firewall to initiate requests outbound to the DMZ. Computers in the DMZ in
turn respond, forward or re-issue requests out to the Internet or other public network, as proxy servers do. (Many DMZ
implementations, in fact, simply utilize a proxy server or servers as the computers within the DMZ.) The LAN firewall,
though, prevents computers in the DMZ from initiating inbound requests.
DMZ is a commonly-touted feature of home broadband routers. However, in most instances these features are not true
DMZs. Broadband routers often implement a DMZ simply through additional firewall rules, meaning that incoming
requests reach the firewall directly. In a true DMZ, incoming requests must first pass through a DMZ computer before
reaching the firewall.
@2010 PTC
10. Web &Security Concepts
Proxy
In an enterprise that uses the Internet, a proxy server is a server that acts as an intermediary between a
workstation user and the Internet so that the enterprise can ensure security, administrative control, and caching
service. A proxy server is associated with or part of a gateway server that separates the enterprise network from
the outside network and a firewall server that protects the enterprise network from outside intrusion.
A
proxy server receives a request for an Internet service (such as a Web page request) from a user. If it passes
filtering requirements, the proxy server, assuming it is also a cache server , looks in its local cache of previously
downloaded Web pages. If it finds the page, it returns it to the user without needing to forward the request to the
Internet. If the page is not in the cache, the proxy server, acting as a client on behalf of the user, uses one of its
own IP addresses to request the page from the server out on the Internet. When the page is returned, the proxy
server relates it to the original request and forwards it on to the user.
To
the user, the proxy server is invisible; all Internet requests and returned responses appear to be directly with
the addressed Internet server. (The proxy is not quite invisible; its IP address has to be specified as a configuration
option to the browser or other protocol program.)
An
advantage of a proxy server is that its cache can serve all users. If one or more Internet sites are frequently
requested, these are likely to be in the proxy's cache, which will improve user response time. In fact, there are
special servers called cache servers. A proxy can also do logging.
@2010 PTC
11. Web &Security Concepts
Reverse
Proxy
When web server is configured with reverse proxy functionality, it acts as a proxy for one or
more backend servers and serves as a single point of access or gateway in a server farm. In a
reverse proxy setup, the web server forwards the HTTP request it received from the browser
client to the appropriate backend server. The HTML response from the backend server is sent
back to the browser through the web server. Thus, the web server with reverse proxy hides the
existence of backend servers.
@2010 PTC
12. Web &Security Concepts
over SSL or HTTP Secure) is the use
of Secure Socket Layer (SSL) or Transport Layer
Security (TLS) as a sublayer under regular HTTP
application layering. HTTPS encrypts and decrypts
user page requests as well as the pages that are
returned by the Web server. The use of HTTPS
protects against eavesdropping and man-in-themiddle attacks. HTTPS was developed by Netscape.
HTTPS and SSL support the use of X.509 digital
certificates from the server so that, if necessary, a
user can authenticate the sender. Unless a different
port is specified, HTTPS uses port 443 instead of
HTTP port 80 in its interactions with the lower
layer, TCP/IP.
HTTPS (HTTP
@2010 PTC
13. Certificates
The certificates gives 2 important information.
The owner of the certificate, and the authority
who signed the certificate.
When Application is used by real company
they are using signed certificates by
authorities.
If you have to install a test server, you can
signed yourself your certificate, but when
you will connect to Application you will get
a popup stating that the certificate cannot
be trusted.
@2010 PTC