CCI2018 - Azure Network - Security Best Practiceswalk2talk srl
Nell'era moderna del cloud computing, la tendenza è di spostare sempre più frequentemente i propri workload nel cloud pubblico e di utilizzare cloud ibridi. La sicurezza è spesso un elemento inibitore per l’utilizzo di ambienti cloud. Come è possibile strutturare la topologia di rete in presenza di ambienti cloud e renderla sicura ? Si può estendere il proprio datacenter nel cloud mantenendo un elevato livello di sicurezza della rete ? Come garantire un accesso sicuro ai servizi presenti nel cloud e con quali strumenti ? Una delle principali ragioni per utilizzare Azure per le proprie applicazioni e i propri servizi è data proprio dalla possibilità di poter usufruire di un ampio set di funzionalità e di strumenti di sicurezza integrati nella platform. In questa sessione saranno presentate le security best practices in ambito network nel mondo Azure, date da un'esperienza diretta sul campo. Affrontando scenari reali saranno riportate le linee guida e gli accorgimenti utili per utilizzare al meglio le potenzialità presenti nella piattaforma, al fine di strutturare il network in Azure rispettando tutti i principi di sicurezza.
By Francesco Molfese
Azure Active Directory | Microsoft Azure Tutorial for Beginners | Azure 70-53...Edureka!
** Microsoft Azure Certification Training: https://www.edureka.co/microsoft-azure-training**
This Edureka "Azure Active Directory” tutorial will give you a thorough and insightful overview of Microsoft Azure Active Directory and help you understand other related terms like Tenants, Domain services etc. Following are the offerings of this tutorial:
1. What is Azure Active Directory?
2. Azure AD vs Windows AD
3. Azure AD Audience
4. Azure AD Editions
5. Azure AD Tenants
6. Demo-Creating and using Active Directory
Check out our Playlists: https://goo.gl/A1CJjM
here's where Microsoft has invested, across these areas: identity and access management, apps and data security, network security, threat protection, and security management.
We’ve put a tremendous amount of investment into these areas and the way it shows up is across a pretty broad array of product areas and features.
Our Identity and Access Management tools enable you to take an identity-based approach to security, and establish truly conditional access policies
Our App and Data Security help you protect your apps and your data as it moves around—both inside and outside your organization
Azure includes a robust networking infrastructure with built-in security controls for your application and service connectivity.
Our Threat Protection capabilities are built in and fully integrated, so you can strengthen both pre-breach protection with deep capabilities across e-mail, collaboration services, and end points including hardware based protection; and post-breach detection that includes memory and kernel based protection and response with automation.
And our Security Management tools give you the visibility and more importantly the guidance to manage policy centrally
This is the Lesson 4 of the "Azure Governance - Free training" serie.
This document presents Azure Policy in-depth and lists all key items you should now when designing your Azure Policy Model.
Finally, the document describes all methods/tools (GUI & CLI) you can use to create, manage and assign Policy (Definition and Initiative Definition) to your Azure environment.
Creating and using a Custom Policies is also detailed on this document.
CCI2018 - Azure Network - Security Best Practiceswalk2talk srl
Nell'era moderna del cloud computing, la tendenza è di spostare sempre più frequentemente i propri workload nel cloud pubblico e di utilizzare cloud ibridi. La sicurezza è spesso un elemento inibitore per l’utilizzo di ambienti cloud. Come è possibile strutturare la topologia di rete in presenza di ambienti cloud e renderla sicura ? Si può estendere il proprio datacenter nel cloud mantenendo un elevato livello di sicurezza della rete ? Come garantire un accesso sicuro ai servizi presenti nel cloud e con quali strumenti ? Una delle principali ragioni per utilizzare Azure per le proprie applicazioni e i propri servizi è data proprio dalla possibilità di poter usufruire di un ampio set di funzionalità e di strumenti di sicurezza integrati nella platform. In questa sessione saranno presentate le security best practices in ambito network nel mondo Azure, date da un'esperienza diretta sul campo. Affrontando scenari reali saranno riportate le linee guida e gli accorgimenti utili per utilizzare al meglio le potenzialità presenti nella piattaforma, al fine di strutturare il network in Azure rispettando tutti i principi di sicurezza.
By Francesco Molfese
Azure Active Directory | Microsoft Azure Tutorial for Beginners | Azure 70-53...Edureka!
** Microsoft Azure Certification Training: https://www.edureka.co/microsoft-azure-training**
This Edureka "Azure Active Directory” tutorial will give you a thorough and insightful overview of Microsoft Azure Active Directory and help you understand other related terms like Tenants, Domain services etc. Following are the offerings of this tutorial:
1. What is Azure Active Directory?
2. Azure AD vs Windows AD
3. Azure AD Audience
4. Azure AD Editions
5. Azure AD Tenants
6. Demo-Creating and using Active Directory
Check out our Playlists: https://goo.gl/A1CJjM
here's where Microsoft has invested, across these areas: identity and access management, apps and data security, network security, threat protection, and security management.
We’ve put a tremendous amount of investment into these areas and the way it shows up is across a pretty broad array of product areas and features.
Our Identity and Access Management tools enable you to take an identity-based approach to security, and establish truly conditional access policies
Our App and Data Security help you protect your apps and your data as it moves around—both inside and outside your organization
Azure includes a robust networking infrastructure with built-in security controls for your application and service connectivity.
Our Threat Protection capabilities are built in and fully integrated, so you can strengthen both pre-breach protection with deep capabilities across e-mail, collaboration services, and end points including hardware based protection; and post-breach detection that includes memory and kernel based protection and response with automation.
And our Security Management tools give you the visibility and more importantly the guidance to manage policy centrally
This is the Lesson 4 of the "Azure Governance - Free training" serie.
This document presents Azure Policy in-depth and lists all key items you should now when designing your Azure Policy Model.
Finally, the document describes all methods/tools (GUI & CLI) you can use to create, manage and assign Policy (Definition and Initiative Definition) to your Azure environment.
Creating and using a Custom Policies is also detailed on this document.
Part 01: Azure Virtual Networks – An OverviewNeeraj Kumar
A virtual network in Azure is similar to the network that we have in our on-premises environment, helping us connect different resources. The azure network helps us connect virtual machines (VMs), create a connected system as a part of a FARMs so that they can communicate with each other, and talk to the on-premises systems as well in special connected scenarios.
This is the Part 1 of the Azure Virtual Networking Servies and is the part of the AZ-100 certification examination, and it provides an overview of the vNet, and the components of the virtual network that an Azure Administrator has to deal with on a daily basis.
Azure Role Based Access Control with an use case and explanation about various concepts like Global Administrators, Role Assignments, Account Administrators, Azure Roles, Custom Roles for both Azure AD and Azure Subscriptions
This is the Part 1 of the Azure Active Directory Topic. In this session I introduce the Azure AD and talk about what it is, how it differentiates with on-premises Active Directory Domain Services (AD DS). Further, in this session I provide demos on how to create Azure AD Users from the Azure Portal, associate Custom domains with the Azure AD tenant and the Azure AD PowerShell module. As a bonus, I also talk about and demo how to create additional Azure AD directory within the subscription.
Protect your business with a universal identity platform
The Azure Active Directory (Azure AD) enterprise identity service provides single sign-on and multi-factor authentication to help protect your users from 99.9 percent of cybersecurity attacks.
Gartner named Microsoft a leader in Magic Quadrant 2020 for Access Management
Single sign-on simplifies access to your apps from anywhere
Conditional Access and multi-factor authentication help protect and govern access
A single identity platform lets you engage with internal and external users more securely
Developer tools make it easy to integrate identity into your apps and services
Connect your workforce
Whether people are on-site or remote, give them seamless access to all their apps so they can stay productive from anywhere. Automate workflows for user lifecycle and provisioning. Save time and resources with self-service management.
Choose from thousands of SaaS apps
Simplify single sign-on. Azure AD supports thousands of pre-integrated software as a service (SaaS) applications.
Protect and govern access
Safeguard user credentials by enforcing strong authentication and conditional access policies. Efficiently manage your identities by ensuring that the right people have the right access to the right resources.
Engage with your customers and partners
Secure and manage customers and partners beyond your organizational boundaries, with one identity solution. Customize user journeys and simplify authentication with social identity and more.
Integrate identity into your apps
Accelerate adoption of your application in the enterprise by supporting single sign-on and user provisioning. Reduce sign-in friction and automate the creation, removal, and maintenance of user accounts.
Building an Enterprise-Grade Azure Governance ModelKarl Ots
As presented at the CloudBrew 2019 conference in 13.12.2019.
When proper governance model is followed, your Azure application development teams are operating in a secure and compliant Azure environment during design, development and operations. In this "lessons learned" type of session, Karl will will share practical tips on how to build a comprehensive Azure governance model, based on real-life experiences from working with multi-billion dollar corporations.
After this session, you should have a better understanding of Azure governance best practices and in-house team roles & responsibilities. You will also have an overview of the technical fundamentals of a comprehensive Azure Governance.
This presentation walks through the Security and Compliance functionality to customers leveraging Azure as a compute environment. It includes deep-dive references to detailed information on each topic presented.
By default Azure does not provide any network traffic isolation between the subnets in VNETs. This creates a unique challenge for IT network and security professionals who have multiple subnets in Azure and would like to provide segmentation within the VNETS; an architecture that is common in on premise networks, for both physical and virtual infrastructures, for mitigating various security concerns. Azure NSGs (Network Security Groups) provides solutions for such virtual network segmentations without using any additional virtual appliances.
You will learn :
1.Azure VM traffic isolation
2.Azure VNET traffic isolation
3.Azure network segmentation through traffic isolation
4.Isolated network security zones
What is Microsoft Azure?
What is Azure used for?
Why do businesses want to use someone else's hardware?
What are the advantages of virtualization?
Is Azure secure?
How does Azure stack up against the competition?
To help you make an informed decision about whether Azure is right for your business.
Enhancing the impregnability of linux serversIJNSA Journal
Worldwide IT industry is experiencing a rapid shift towards Service Oriented Architecture (SOA). As a
response to the current trend, all the IT firms are adopting business models such as cloud based services
which rely on reliable and highly available server platforms. Linux servers are known to be highly
secure. Network security thus becomes a major concern to all IT organizations offering cloud based
services. The fundamental form of attack on network security is Denial of Service. This paper focuses on
fortifying the Linux server defence mechanisms resulting in an increase in reliability and availability of
services offered by the Linux server platforms. To meet this emerging scenario, most of the organizations
are adopting business models such as cloud computing that are dependant on reliable server platforms.
Linux servers are well ahead of other server platforms in terms of security. This brings network security
to the forefront of major concerns to an organization. The most common form of attacks is a Denial of
Service attack. This paper focuses on mechanisms to detect and immunize Linux servers from DoS .
Part 01: Azure Virtual Networks – An OverviewNeeraj Kumar
A virtual network in Azure is similar to the network that we have in our on-premises environment, helping us connect different resources. The azure network helps us connect virtual machines (VMs), create a connected system as a part of a FARMs so that they can communicate with each other, and talk to the on-premises systems as well in special connected scenarios.
This is the Part 1 of the Azure Virtual Networking Servies and is the part of the AZ-100 certification examination, and it provides an overview of the vNet, and the components of the virtual network that an Azure Administrator has to deal with on a daily basis.
Azure Role Based Access Control with an use case and explanation about various concepts like Global Administrators, Role Assignments, Account Administrators, Azure Roles, Custom Roles for both Azure AD and Azure Subscriptions
This is the Part 1 of the Azure Active Directory Topic. In this session I introduce the Azure AD and talk about what it is, how it differentiates with on-premises Active Directory Domain Services (AD DS). Further, in this session I provide demos on how to create Azure AD Users from the Azure Portal, associate Custom domains with the Azure AD tenant and the Azure AD PowerShell module. As a bonus, I also talk about and demo how to create additional Azure AD directory within the subscription.
Protect your business with a universal identity platform
The Azure Active Directory (Azure AD) enterprise identity service provides single sign-on and multi-factor authentication to help protect your users from 99.9 percent of cybersecurity attacks.
Gartner named Microsoft a leader in Magic Quadrant 2020 for Access Management
Single sign-on simplifies access to your apps from anywhere
Conditional Access and multi-factor authentication help protect and govern access
A single identity platform lets you engage with internal and external users more securely
Developer tools make it easy to integrate identity into your apps and services
Connect your workforce
Whether people are on-site or remote, give them seamless access to all their apps so they can stay productive from anywhere. Automate workflows for user lifecycle and provisioning. Save time and resources with self-service management.
Choose from thousands of SaaS apps
Simplify single sign-on. Azure AD supports thousands of pre-integrated software as a service (SaaS) applications.
Protect and govern access
Safeguard user credentials by enforcing strong authentication and conditional access policies. Efficiently manage your identities by ensuring that the right people have the right access to the right resources.
Engage with your customers and partners
Secure and manage customers and partners beyond your organizational boundaries, with one identity solution. Customize user journeys and simplify authentication with social identity and more.
Integrate identity into your apps
Accelerate adoption of your application in the enterprise by supporting single sign-on and user provisioning. Reduce sign-in friction and automate the creation, removal, and maintenance of user accounts.
Building an Enterprise-Grade Azure Governance ModelKarl Ots
As presented at the CloudBrew 2019 conference in 13.12.2019.
When proper governance model is followed, your Azure application development teams are operating in a secure and compliant Azure environment during design, development and operations. In this "lessons learned" type of session, Karl will will share practical tips on how to build a comprehensive Azure governance model, based on real-life experiences from working with multi-billion dollar corporations.
After this session, you should have a better understanding of Azure governance best practices and in-house team roles & responsibilities. You will also have an overview of the technical fundamentals of a comprehensive Azure Governance.
This presentation walks through the Security and Compliance functionality to customers leveraging Azure as a compute environment. It includes deep-dive references to detailed information on each topic presented.
By default Azure does not provide any network traffic isolation between the subnets in VNETs. This creates a unique challenge for IT network and security professionals who have multiple subnets in Azure and would like to provide segmentation within the VNETS; an architecture that is common in on premise networks, for both physical and virtual infrastructures, for mitigating various security concerns. Azure NSGs (Network Security Groups) provides solutions for such virtual network segmentations without using any additional virtual appliances.
You will learn :
1.Azure VM traffic isolation
2.Azure VNET traffic isolation
3.Azure network segmentation through traffic isolation
4.Isolated network security zones
What is Microsoft Azure?
What is Azure used for?
Why do businesses want to use someone else's hardware?
What are the advantages of virtualization?
Is Azure secure?
How does Azure stack up against the competition?
To help you make an informed decision about whether Azure is right for your business.
Enhancing the impregnability of linux serversIJNSA Journal
Worldwide IT industry is experiencing a rapid shift towards Service Oriented Architecture (SOA). As a
response to the current trend, all the IT firms are adopting business models such as cloud based services
which rely on reliable and highly available server platforms. Linux servers are known to be highly
secure. Network security thus becomes a major concern to all IT organizations offering cloud based
services. The fundamental form of attack on network security is Denial of Service. This paper focuses on
fortifying the Linux server defence mechanisms resulting in an increase in reliability and availability of
services offered by the Linux server platforms. To meet this emerging scenario, most of the organizations
are adopting business models such as cloud computing that are dependant on reliable server platforms.
Linux servers are well ahead of other server platforms in terms of security. This brings network security
to the forefront of major concerns to an organization. The most common form of attacks is a Denial of
Service attack. This paper focuses on mechanisms to detect and immunize Linux servers from DoS .
ENHANCING THE IMPREGNABILITY OF LINUX SERVERSIJNSA Journal
Worldwide IT industry is experiencing a rapid shift towards Service Oriented Architecture (SOA). As a response to the current trend, all the IT firms are adopting business models such as cloud based services which rely on reliable and highly available server platforms. Linux servers are known to be highly secure. Network security thus becomes a major concern to all IT organizations offering cloud based services. The fundamental form of attack on network security is Denial of Service. This paper focuses on fortifying the Linux server defence mechanisms resulting in an increase in reliability and availability of services offered by the Linux server platforms. To meet this emerging scenario, most of the organizations are adopting business models such as cloud computing that are dependant on reliable server platforms. Linux servers are well ahead of other server platforms in terms of security. This brings network security to the forefront of major concerns to an organization. The most common form of attacks is a Denial of Service attack. This paper focuses on mechanisms to detect and immunize Linux servers from DoS .
DDoS attacks make headlines everyday, but how do they work and how can you defend against them? DDoS attacks can be high volume UDP traffic floods, SYN floods, DNS amplification, or Layer 7 HTTP attacks. Understanding how to protect yourself from DDoS is critical to doing business on the internet today. Suzanne Aldrich, a lead Solutions Engineer at Cloudflare, will cover how these attacks work, what is being targeted by the attackers, and how you can protect against the different attack types. She will cap the session with the rise in IoT attacks, and expectations for the future of web security.
This was a group project which was created by myself, Samy Izebboudjen, Daniel Phan, and Eric Hernandez in which we tested a denial of service SYN flood script against a targeted website on our own local network on a virtual machine. In this project, we also used virtual machines (via VirtualBox) in order to set up our testing environment as well as used Wireshark to analyze the network traffic during the simulation.
This project was conducted during our ISYS-575 (Information Security Management) course at San Francisco State University and the purpose of this project and write-up was to test network security and determine the overall effects a denial of service attack has against a targeted website/network.
A ROBUST MECHANISM FOR DEFENDING DISTRIBUTED DENIAL OF SERVICE ATTACKS ON WEB...IJNSA Journal
Distributed Denial of Service (DDoS) attacks have emerged as a popular means of causing mass targeted service disruptions, often for extended periods of time. The relative ease and low costs of launching such attacks, supplemented by the current inadequate sate of any viable defense mechanism, have made them one of the top threats to the Internet community today. Since the increasing popularity of web-based applications has led to several critical services being provided over the Internet, it is imperative to monitor the network traffic so as to prevent malicious attackers from depleting the resources of the network and denying services to legitimate users. This paper first presents a brief discussion on some of the important types of DDoS attacks that currently exist and some existing mechanisms to combat these attacks. It then points out the major drawbacks of the currently existing defense mechanisms and proposes a new mechanism for protecting a web-server against a DDoS attack. In the proposed mechanism, incoming traffic to the server is continuously monitored and any abnormal rise in the inbound traffic is immediately detected. The detection algorithm is based on a statistical analysis of the inbound traffic on the server and a robust hypothesis testing framework. While the detection process is on, the sessions from the legitimate sources are not disrupted and the load on the server is restored to the normal level by blocking the traffic from the attacking sources. To cater to different scenarios, the detection algorithm has various modules with varying level of computational and memory overheads for
their execution. While the approximate modules are fast in detection and involve less overhead, they provide lower level of detection accuracy. The accurate modules employ complex detection logic and hence involve more overhead for their execution. However, they have very high detection accuracy. Simulations carried out on the proposed mechanism have produced results that demonstrate effectiveness of the proposed defense mechanism against DDoS attacks.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
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.
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.
ER(Entity Relationship) Diagram for online shopping - TAEHimani415946
https://bit.ly/3KACoyV
The ER diagram for the project is the foundation for the building of the database of the project. The properties, datatypes, and attributes are defined by the ER diagram.
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. Azure DDoS Protection Standard
Arnaud Lheureux
Cloud Chief Security Officer
One Commercial Partner
Microsoft APAC
Twitter: @arnaudLheureux
2. Attack
Frequency
Attack
Size
Attack
Vectors
58%
Vs. 2017
1.7 Tbps
Peak
4X
> 50Gbps
56%
Multi-vector
• Continued growth in frequency, size,
sophistication, and impact
• Often utilized as ‘cyber smoke screen’ to mask
infiltration attacks
400 Gbps
(NTP amp)
650 Gbps
(Mirai)
1.7 Tbps
(Memcached)
2+ Tbps
(???)
Attackers Use UPnP to SidestepDDoS Defenses
May 2018
Attack
Downtime
35%
Businesses
impacted
Major cyber attack disrupts internet
service across Europe & US using
Mirai botnet
Oct 2016
Feb 2018
3. DDoS attack types
Volumetric attacks
Example attacks
Protocol attacks
Example attacks
Resource attacks
Example attacks
7. Azure DDoS System Overview
Region
AZ-2
AZ-3AZ-1
RN RN
DC DC
Edge
DC DC
DC DC
Edge
DDoS Protection
Express
Route
Internet
Peers
DDoS Protection
Continuous
monitoring
Edge mitigation
protects datacenter
bandwidth
Global distribution of
attack traffic
Regional failover
Global mitigation
platform
10. Azure DDoS Defense
Designed into the global network
Global distribution of attack traffic
during large scale attacks
25+ Tbps global mitigation
capacity
Continuous monitoring, learning,
and protection signature
improvements
Proven defense for Microsoft
services
Specifically tuned protection for
your app
Active traffic monitoring to
proactively detect emerging threats
and attack vectors
Traffic
Monitoring
DDoS Protection
DDoS Protection
Azure Host
SDN
Emerging attack
patterns
Virtual Network
Your applications
11.
12.
13. Simple to provision for all your virtual network resources
Always on monitoring with near real time telemetry and alerting
Automatic network layer attack
DDoS Attack Analytics
Attack data snapshots and full post attack summary
DDoS Rapid Response
Azure Security Center integration
Cloud scale DDoS protection for your applications
14. Choose DDoS Protection Standard
when
• You have been a victim of
targeted DDoS attacks in past
• You’re running your business
critical applications in Azure
• You need visibility when your
resources are under attack.
• You want DDoS policies tuned
to the traffic pattern of your
application
• You have to prove DDoS
mitigation compliance
assurance
21. Best Practices & Reference Architecture
http://aka.ms/ddosbest
Design for scalability
Ensure that your VM
architecture includes more
than one VM and that each
VM is included in an
availability set.
Recommend using Virtual
machine Scale Sets for
autoscaling capabilities …….
Defense in depth
deploy Azure services in a
virtual network
Using service endpoints
will switch service traffic to
use virtual network private
addresses …….
Design for security
Focus on the 5 pillars of
software quality.
Security and privacy are
built right into the Azure
platform, beginning with
the Security Development
Lifecycle (SDL)………
22. Attack Mitigations
Attack defense originates in the region
where the application is hosted but we
utilize global capacity depending on
attack size
Users (and attackers) connect
to your applications via the
closest Azure edge location
Attack Type Description
Ping Flood
Server receives a lot of spoofed Ping packets from a very large set of source IP it is being targeted by a Ping Flood attack. Such
an attack’s goal is to flood the target with ping packets until it goes offline
IP Null Attack
TCP packet with none of the SYN, FIN, ACK, or RST flags set has been sent to a specific host., these packets can bypass security
measures.
CharGEN Flood
A CharGEN amplification attack is carried out by sending small packets carrying a spoofed IP of the target to internet enabled
devices running CharGEN. These spoofed requests to such devices are then used to send UDP floods as responses from these
devices to the target.
SNMP Amplification
SNMP amplification attack is carried out by sending small packets carrying a spoofed IP of the target to the internet enabled
devices running SNMP.These spoofed requests to such devices are then used to send UDP floods as responses from these
devices to the target. However, amplification effect in SNMP can be greater when compared with CHARGEN and DNS attacks.
NTP Reflection
The NTP amplification attack is carried out by sending small packets carrying a spoofed IP of the target to internet enabled
devices running NTP.These spoofed requests to such devices are then used to send UDP floods as responses from these devices
to the target.
DNS Reflection
The attacker spoofs look-up requests to domain name system (DNS) servers to hide the source of the exploit and direct the
response to the target.
DNS Water Torture
A randomized 12-character alphanumeric subdomain is prepended to the target domain and the attacking bots send their
queries to their locally-configured DNS servers, which are typically DNS servers at local ISPs.
SSDP Amplification
SSDP enabled network devices that are also accessible to UPnP from the internet are an easy source for generating SSDP
amplification floods. The SSDP amplification attack is also carried out by sending small packets carrying a spoofed IP of the
target to devices. These spoofed requests to such devices are used to send UDP floods as responses from these devices to the
target.
QUIC Flood It uses UDP-80 to generate reflection attack.
SYN Flood
This attack exploits the design of the three-way TCP communication process between a client, host, and a server. In this process,
a client initiates a new session by generating a SYN packet. The host assigns and checks these sessions until they are closed by
the client. To carry out a SYN Flood attack, an attacker sends a lot of SYN packets to the target server from spoofed IP
addresses.
SYN-ACK Flood
SYN-ACK packet is generated by the listening host to acknowledge an incoming SYN packet. A large amount of spoofed SYN-
ACK packets is sent to a target server in a SYN-ACK Flood attack.
ACK and PUSH ACK
Flood
During an active TCP-SYN session, ACK or PUSH ACK packets carry information to and from the host and client machines till the
session lasts. During an ACK & PUSH ACK flood attack, a large amount of spoofed ACK packets is sent to the target server to
deflate it.Since these packets are not linked with any session on the server’s connection list, the server spends more resources on
processing these requests.
ACK Flood
This attack exploits the design of the three-way TCP communication process between a client, host, and a server. In this process,
a client sent ACK packets to be part of existing session.
ACK Fragmentation
Fragmented ACK packets are used in this bandwidth consuming version of the ACK & PUSH ACK Flood attack. To execute this
attack, fragmented packets of 1500 bytes are sent to the target server.
RST/FIN Flood
After a successful three or four-way TCP-SYN session, RST or FIN packets are exchanged by servers to close the TCP-SYN
session between a host and a client machine. In an RST or FIN Flood attack, a target server receives a large number of spoofed
RST or FIN packets that do not belong to any session on the target server.
Synonymous TCP-SYN packets carrying the target server’s Source IP and Destination IP are sent to the target server.
STOMP ( Session
Flood Attack)
Disguise of a valid TCP session by carrying a SYN, multiple ACK and one or more RST or FIN packets.
UDP Flood
In this type of DDoS attack a server is flooded with UDP packets. Unlike TCP, there isn’t an end to end process of
communication between client and host. This makes it harder for defensive mechanisms to identify a UDP Flood attack. Random
source IP/PORT.
23. DDoS Protection Planning
Planning and preparing for a DDoS attack is crucial in
understanding the availability and response of an
application during an actual attack.
We’ve partnered with BreakingPoint Cloud to offer tooling
for Azure customers to generate traffic load against DDoS
Standard enabled public endpoints via a safe
environment.
ü Various test profiles available
ü Validate how Microsoft Azure DDoS Protection
protects your Azure resources
ü Optimize your incident response process
ü Document DDoS compliance
ü Train your network security teams
