DDoS Mitigation Strategies
|
|
|
- Dana Logan
- 7 years ago
- Views:
Transcription
1 DDoS Mitigation Strategies Internet2 Security Working Group 23 Feb 2016 Mark Beadles Information Security Officer Kevin Nastase Network Security Engineer Slide 1
2 About OARnet Created in 1987 by Ohio Board of Regents A division of Ohio Department of Higher Education Serves Ohio s education, research, health care, public broadcasting and government communities 100Gb network backbone miles of fiber in 6 rings 90 higher education clients 700 K-12 districts via 32 technology centers 750+ State government locations Slide 2
3 Slide 3
4 Denial of Service Background Statistics 3.6 events per day, 25.3 events per week, 110 events per average month event here is an anomalous UDP flow 79 Unique clients have seen events Targeted vs 267 different IP s Average event size: Gb (1.686 Gb UDP, Gb TCP) Largest event size: Gb ( Gb UDP,.213 Gb TCP) Data collected 3/15-2/16 Slide 4
5 Denial of Service Characteristics 1900/ssdp 41% 123/ntp 27% 53/dns 15% 520/rip 2% 161/snmp 1% 19/chargen 1% 80 36% % 53 3% 443 1% % (also src prt 0) Slide 5
6 Denial of Service Measures Monitoring Alerting Visualization Escalation Proactive DNS Targeted policing Reactive RTBH Hybrid DDoS Mitigation Slide 6
7 Denial of Service Measures: Alerting Sample Alert Suspected UDP (D)DoS Attack - Client: <redacted> Service: INTERNET, Router: <redacted> - xe-1/0/0.395, ifindex: 504 UDP: Gbps, TCP: Mbps, Total: Gbps UDP Src Port: 0 53, UDP Dest Port: , Destination IP: Statseeker Utilization Graph: <link> Netflow Reports: Top IP Protocols - <link> Top UDP Source Ports- <link> Top UDP Destination Ports - <link> Slide 7
8 Denial of Service Measures: Visualization Slide 8
9 Slide 9
10 Denial of Service Measures: Escalation Plan your incident response and escalation paths ahead of time Both technical and business DDoS is service affecting! Know who the right contacts are Practice & overcommunicate client NOC (24x7) Tier2 Engineering (on call) Security (on call) Slide 10
11 Denial of Service Measures: DNS DNS is both a target and a source of DDoS activity OARnet DNS 8 servers, 2 different OS s (secure64 + FreeBSD) ½ recursive, ½ authoritative Blind-master setup Slide 11
12 Denial of Service Measures: Targeted Policing Large proportion of DDoS activity has a profile that lends itself to straightforward policing UDP traffic in particular E.g.: why does 1900/udp need to be sent over the Internet? Considerations: Mission to deliver all the bits, fast Potential to disrupt applications ( 80/udp & Google) Manageability of multiple custom policers Slide 12
13 Denial of Service Measures: RTBH (aka BGP Null Route) Mechanism: Remotely triggered black hole Client sends specific host /32 route to OARnet tagged with appropriate BGP community value nnn:nn for Internet mmmm:mm for Internet2 OARnet backbone router sets next hop to discard Once BGP policy is configured, client can send prefixes without escalating to OARnet Slide 13
14 Denial of Service Measures: RTBH (aka BGP Null Route) Considerations: Target IP will not be able to communicate with Internet. (Yes, this may have been the intent...) However, this may allow the rest of your network to stay up during the attack! Strongly encouraging clients to set up RTBH for use when needed show configuration policy-options policy-statement MMM-ASnnnnn-IN term CANDIDATE-NULL { from { community AS600-NULL; route-filter /20 prefix-length-range /32-/32; route-filter /23 prefix-length-range /32-/32; } then { next-hop discard; accept; } } Slide 14
15 Denial of Service Measures: Hybrid Mitigation Deployed for K12 networks in Ohio 28 locations serving 700 districts Vendor-based Hybrid architecture: CPE device to filter, detect anomalies, trigger alert Cloud scrubbing service for larger events Manual intervention to approve BGP swing to cloud OARnet provided addresses outside allocated IP space for GRE tunnel termination & management Slide 15
16 Concluding thoughts Many DDoS events aren t volumetric pipe-filling attacks but instead target weak in particular firewalls Education and communication with clients cannot be overemphasized Consider different solutions to protect different resources: e.g. protect a web site by outsourcing to a CDN Slide 16
17 Thank you Slide 17
DDoS Mitigation Techniques
DDoS Mitigation Techniques Ron Winward, ServerCentral CHI-NOG 03 06/14/14 Consistent Bottlenecks in DDoS Attacks 1. The server that is under attack 2. The firewall in front of the network 3. The internet
DDoS Attacks. An open-source recipe to improve fast detection and automate mitigation techniques
DDoS Attacks An open-source recipe to improve fast detection and automate mitigation techniques Vicente De Luca Sr. Network Engineer vdeluca@zendesk.com AS21880 / AS61186 Introduction Tentative to solve:
DDoS Threat Report. Chris Beal Chief Security Architect MCNC chris.beal@mcnc.org @mcncsecurity on Twitter
DDoS Threat Report Insights on Finding, Fighting, and Living with DDoS Attacks v1.1 Chris Beal Chief Security Architect MCNC chris.beal@mcnc.org @mcncsecurity on Twitter DDoS in the News - 2014 DDoS Trends
Approaches for DDoS an ISP Perspective. barry@null0.net ognian.mitev@viawest.com
Approaches for DDoS an ISP Perspective barry@null0.net ognian.mitev@viawest.com Home School How everyone starts It s all up to you It s inexpensive (compared to other forms of education) Quality may not
F5 Silverline DDoS Protection Onboarding: Technical Note
F5 Silverline DDoS Protection Onboarding: Technical Note F5 Silverline DDoS Protection onboarding F5 Networks is the first leading application services company to offer a single-vendor hybrid solution
The Value of Flow Data for Peering Decisions
The Value of Flow Data for Peering Decisions Hurricane Electric IPv6 Native Backbone Massive Peering! Martin J. Levy Director, IPv6 Strategy Hurricane Electric 22 nd August 2012 Introduction Goal of this
Hunting down a DDOS attack
2006-10-23 1 Hunting down a DDOS attack By Lars Axeland +46 70 5291530 lars.axeland@teliasonera.com 2006-10-23 What we have seen so far What can an operator do to achieve core security What solution can
Traffic Diversion Techniques for DDoS Mitigation using BGP Flowspec. Leonardo Serodio leonardo.serodio@alcatel-lucent.com May 2013
Traffic Diversion Techniques for DDoS Mitigation using BGP Flowspec Leonardo Serodio leonardo.serodio@alcatel-lucent.com May 2013 Distributed Denial of Service (DDoS) Attacks DDoS attack traffic consumes
DNS Best Practices. Mike Jager Network Startup Resource Center mike@nsrc.org
DNS Best Practices Mike Jager Network Startup Resource Center mike@nsrc.org This document is a result of work by the Network Startup Resource Center (NSRC at http://www.nsrc.org). This document may be
HOW TO PREVENT DDOS ATTACKS IN A SERVICE PROVIDER ENVIRONMENT
HOW TO PREVENT DDOS ATTACKS IN A SERVICE PROVIDER ENVIRONMENT The frequency and sophistication of Distributed Denial of Service attacks (DDoS) on the Internet are rapidly increasing. Most of the earliest
Security Toolsets for ISP Defense
Security Toolsets for ISP Defense Backbone Practices Authored by Timothy A Battles (AT&T IP Network Security) What s our goal? To provide protection against anomalous traffic for our network and it s customers.
DESTINATION BASED RTBH FILTERING AT ATTACK ORIGINATING INTERNET SERVICE PROVIDER
DESTINATION BASED RTBH FILTERING AT ATTACK ORIGINATING INTERNET SERVICE PROVIDER Sarita Sharma 1, Davender Saini 2 1 Student M. Tech. ECE (2013-2015) Gurgaon Institute of Technology Management (M.D.U)
Automated Mitigation of the Largest and Smartest DDoS Attacks
Datasheet Protection Automated Mitigation of the Largest and Smartest Attacks Incapsula secures websites against the largest and smartest types of attacks - including network, protocol and application
DDoS attacks in CESNET2
DDoS attacks in CESNET2 Ondřej Caletka 15th March 2016 Ondřej Caletka (CESNET) DDoS attacks in CESNET2 15th March 2016 1 / 22 About CESNET association of legal entities, est. 1996 public and state universities
Appendix A: Configuring Firewalls for a VPN Server Running Windows Server 2003
http://technet.microsoft.com/en-us/library/cc757501(ws.10).aspx Appendix A: Configuring Firewalls for a VPN Server Running Windows Server 2003 Updated: October 7, 2005 Applies To: Windows Server 2003 with
SecurityDAM On-demand, Cloud-based DDoS Mitigation
SecurityDAM On-demand, Cloud-based DDoS Mitigation Table of contents Introduction... 3 Why premise-based DDoS solutions are lacking... 3 The problem with ISP-based DDoS solutions... 4 On-demand cloud DDoS
Cisco IOS Flexible NetFlow Technology
Cisco IOS Flexible NetFlow Technology Last Updated: December 2008 The Challenge: The ability to characterize IP traffic and understand the origin, the traffic destination, the time of day, the application
Service Description DDoS Mitigation Service
Service Description DDoS Mitigation Service Interoute, Walbrook Building, 195 Marsh Wall, London, E14 9SG, UK Tel: +800 4683 7681 Email: info@interoute.com Contents Contents 1 Introduction...3 2 An Overview...3
Firewall on Demand Multidomain
Firewall on Demand Multidomain S E C U R I T Y V I A B G P F L O W S P E C & A W E B P L A T F O R M Leonidas Poulopoulos GRNET NOC Wayne Routly DANTE Jeffrey Haas JUNIPER Firewall on Demand Multidomain
Cisco Network Foundation Protection Overview
Cisco Network Foundation Protection Overview June 2005 1 Security is about the ability to control the risk incurred from an interconnected global network. Cisco NFP provides the tools, technologies, and
plixer Scrutinizer Competitor Worksheet Visualization of Network Health Unauthorized application deployments Detect DNS communication tunnels
Scrutinizer Competitor Worksheet Scrutinizer Malware Incident Response Scrutinizer is a massively scalable, distributed flow collection system that provides a single interface for all traffic related to
Network provider filter lab
Network provider filter lab Olof Hagsand Pehr Söderman KTH CSC Group Nr Name 1 Name 2 Name 3 Name 4 Date Instructor s Signature Table of Contents 1 Goals...3 2 Introduction...3 3 Preparations...3 4 Lab
Analysis of a DDoS Attack
Analysis of a DDoS Attack December 2014 CONFIDENTIAL CORERO INTERNAL USE ONLY Methodology around DDoS Detection & Mitigation Corero methodology for DDoS protection Initial Configuration Monitoring and
SolarWinds Log & Event Manager
Corona Technical Services SolarWinds Log & Event Manager Training Project/Implementation Outline James Kluza 14 Table of Contents Overview... 3 Example Project Schedule... 3 Pre-engagement Checklist...
Tutorial: Options for Blackhole and Discard Routing. Joseph M. Soricelli Wayne Gustavus NANOG 32, Reston, Virginia
Tutorial: Options for Blackhole and Discard Routing Joseph M. Soricelli Wayne Gustavus NANOG 32, Reston, Virginia Caveats and Assumptions The views presented here are those of the authors and they do not
This Lecture. The Internet and Sockets. The Start 1969. If everyone just sends a small packet of data, they can all use the line at the same.
This Lecture The Internet and Sockets Computer Security Tom Chothia How the Internet works. Some History TCP/IP Some useful network tools: Nmap, WireShark Some common attacks: The attacker controls the
Practical Advice for Small and Medium Environment DDoS Survival
Practical Advice for Small and Medium Environment DDoS Survival Chris "Mac" McEniry Sony Network Entertainment @macmceniry November 8 13, 2015 Washington, D.C. www.usenix.org/lisa15 #lisa15 1 Practical
MANAGED SECURITY SERVICES : IP AGNOSTIC DDOS AN IP AGNOSTIC APPROACH TO DISTRIBUTED DENIAL OF SERVICE DETECTION AND MITIGATION
AN IP AGNOSTIC APPROACH TO DISTRIBUTED DENIAL OF SERVICE DETECTION AND MITIGATION Overview Distributed Denial of Service (DDoS) attacks saturate target networks with service requests that consume the capacity
A10 Thunder TPS Hybrid DDoS Protection Deployment with Verisign OpenHybrid
A10 Thunder TPS Hybrid DDoS Protection Deployment with Verisign OpenHybrid Thunder TPS Signals DDoS Attack Information to Verisign s OpenHybrid, Creating a Powerful, Hybrid, DDoS Protection Solution DEPLOYMENT
Exterior Gateway Protocols (BGP)
Exterior Gateway Protocols (BGP) Internet Structure Large ISP Large ISP Stub Dial-Up ISP Small ISP Stub Stub Stub Autonomous Systems (AS) Internet is not a single network! The Internet is a collection
DDoS Protection. How Cisco IT Protects Against Distributed Denial of Service Attacks. A Cisco on Cisco Case Study: Inside Cisco IT
DDoS Protection How Cisco IT Protects Against Distributed Denial of Service Attacks A Cisco on Cisco Case Study: Inside Cisco IT 1 Overview Challenge: Prevent low-bandwidth DDoS attacks coming from a broad
BT Assure DoS Mitigation UK
BT Assure DoS Mitigation UK Annex to the Internet Connect UK Schedule Contents A note on we and you... 2 1. Service Summary... 2 2. Service Standard Components... 2 3. Service Options... 2 4. Service Management
Internet Firewall CSIS 4222. Packet Filtering. Internet Firewall. Examples. Spring 2011 CSIS 4222. net15 1. Routers can implement packet filtering
Internet Firewall CSIS 4222 A combination of hardware and software that isolates an organization s internal network from the Internet at large Ch 27: Internet Routing Ch 30: Packet filtering & firewalls
Routing Protocols (RIP, OSPF, BGP)
Chapter 13 Routing Protocols (RIP, OSPF, BGP) INTERIOR AND EXTERIOR ROUTING RIP OSPF BGP 1 The McGraw-Hill Companies, Inc., 2000 1 Introduction Packets may pass through several networks on their way to
How To Set Up Foglight Nms For A Proof Of Concept
Page 1 of 5 Foglight NMS Overview Foglight Network Management System (NMS) is a robust and complete network monitoring solution that allows you to thoroughly and efficiently manage your network. It is
and 26th november 2016
DDoS WHERE'S THE THREAT? and WHAT CAN YOU DO? 26th november 2016 Pieter Hanssens pieter.hanssens(at)belnet.be Thomas Eugène thomas.eugene(at)cert.be Presentation based on Whitepaper DDoS: Proactive and
Configuring Personal Firewalls and Understanding IDS. Securing Networks Chapter 3 Part 2 of 4 CA M S Mehta, FCA
Configuring Personal Firewalls and Understanding IDS Securing Networks Chapter 3 Part 2 of 4 CA M S Mehta, FCA 1 Configuring Personal Firewalls and IDS Learning Objectives Task Statements 1.4 Analyze baseline
BGP as an IGP for Carrier/Enterprise Networks
BGP as an IGP for Carrier/Enterprise Networks Presented by: Kevin Myers, SENIOR NETWORK ENGINEER IP ArchiTECHS MANAGED SERVICES Background Kevin Myers 15 + years in IT/Network Engineering Designed and
TDC s perspective on DDoS threats
TDC s perspective on DDoS threats DDoS Dagen Stockholm March 2013 Lars Højberg, Technical Security Manager, TDC TDC in Sweden TDC in the Nordics 9 300 employees (2012) Turnover: 26,1 billion DKK (2012)
Cheap and efficient anti-ddos solution
Cheap and efficient anti-ddos solution Who am I? Alexei Cioban Experience in IT 13 years CEO & Founder IT-LAB 7 years IT trainings 5 years 2 About company Year of foundation - 2007 12 employees www.it-lab.md
LACNIC 25 CSIRTs Meeting Havana, Cuba May 4 th, 2016
LACNIC 25 CSIRTs Meeting Havana, Cuba May 4 th, 2016 DDoS Atacks: Detection, Analysis and Mitigation Lucimara Desiderá lucimara@cert.br Klaus Steding-Jessen jessen@cert.br Internet Governance in Brazil:
20-CS-6053-00X Network Security Spring, 2014. An Introduction To. Network Security. Week 1. January 7
20-CS-6053-00X Network Security Spring, 2014 An Introduction To Network Security Week 1 January 7 Attacks Criminal: fraud, scams, destruction; IP, ID, brand theft Privacy: surveillance, databases, traffic
Technical White Paper
Instant APN Technical White Paper Introduction AccessMyLan Instant APN is a hosted service that provides access to a company network via an Access Point Name (APN) on the AT&T mobile network. Any device
DDoS Overview and Incident Response Guide. July 2014
DDoS Overview and Incident Response Guide July 2014 Contents 1. Target Audience... 2 2. Introduction... 2 3. The Growing DDoS Problem... 2 4. DDoS Attack Categories... 4 5. DDoS Mitigation... 5 1 1. Target
and reporting Slavko Gajin slavko.gajin@rcub.bg.ac.rs
ICmyNet.Flow: NetFlow based traffic investigation, analysis, and reporting Slavko Gajin slavko.gajin@rcub.bg.ac.rs AMRES Academic Network of Serbia RCUB - Belgrade University Computer Center ETF Faculty
DRDoS Attacks: Latest Threats and Countermeasures. Larry J. Blunk Spring 2014 MJTS 4/1/2014
DRDoS Attacks: Latest Threats and Countermeasures Larry J. Blunk Spring 2014 MJTS 4/1/2014 Outline Evolution and history of DDoS attacks Overview of DRDoS attacks Ongoing DNS based attacks Recent NTP monlist
Automated Mitigation of the Largest and Smartest DDoS Attacks
Datasheet Protection Automated Mitigation of the Largest and Smartest Attacks Incapsula secures websites against the largest and smartest types of attacks - including network, protocol and application
perfsonar Multi-Domain Monitoring Service Deployment and Support: The LHC-OPN Use Case
perfsonar Multi-Domain Monitoring Service Deployment and Support: The LHC-OPN Use Case Fausto Vetter, Domenico Vicinanza DANTE TNC 2010, Vilnius, 2 June 2010 Agenda Large Hadron Collider Optical Private
ΕΠΛ 674: Εργαστήριο 5 Firewalls
ΕΠΛ 674: Εργαστήριο 5 Firewalls Παύλος Αντωνίου Εαρινό Εξάμηνο 2011 Department of Computer Science Firewalls A firewall is hardware, software, or a combination of both that is used to prevent unauthorized
DEFENSE NETWORK FAQS DATA SHEET
DATA SHEET VERISIGN INTERNET DEFENSE NETWORK FAQS WHAT IS A DOS OR DDOS ATTACK? A Denial of Service attack or Distributed Denial of Service attack occurs when a single host (DoS), or multiple hosts (DDoS),
Reducing the impact of DoS attacks with MikroTik RouterOS
Reducing the impact of DoS attacks with MikroTik RouterOS Alfredo Giordano Matthew Ciantar WWW.TIKTRAIN.COM 1 About Us Alfredo Giordano MikroTik Certified Trainer and Consultant Support deployment of WISP
Report of Independent Auditors
Ernst & Young LLP Suite 3300 370 17th Street Denver, Colorado 80202-5663 Tel: +1 720 931 4000 Fax: +1 720 931 4444 www.ey.com Report of Independent Auditors To the Management of NTT America, Inc.: We have
/ Staminus Communications
/ Staminus Communications Global DDoS Mitigation and Technology Provider Whitepaper Series True Cost of DDoS Attacks for Hosting Companies The most advanced and experienced DDoS mitigation provider in
Testing Network Security Using OPNET
Testing Network Security Using OPNET Agustin Zaballos, Guiomar Corral, Isard Serra, Jaume Abella Enginyeria i Arquitectura La Salle, Universitat Ramon Llull, Spain Paseo Bonanova, 8, 08022 Barcelona Tlf:
Question 1. [7 points] Consider the following scenario and assume host H s routing table is the one given below:
![Question 1. [7 points] Consider the following scenario and assume host H s routing table is the one given below:](/thumbs/29/13901983.jpg "Question 1. [7 points] Consider the following scenario and assume host H s routing table is the one given below:")
Computer Networks II Master degree in Computer Engineering Exam session: 11/02/2009 Teacher: Emiliano Trevisani Last name First name Student Identification number You are only allowed to use a pen and
Community tools to fight against DDoS
Community tools to fight against DDoS Fakrul Alam Senior Training Officer SANOG 27 & APNIC Regional Meeting, Kathmandu, Nepal 25 Jan - 01 Feb, 2016 Issue Date: Revision: 26-12-2015 1.3 DDoS Denial of Service
CS 457 Lecture 19 Global Internet - BGP. Fall 2011
CS 457 Lecture 19 Global Internet - BGP Fall 2011 Decision Process Calculate degree of preference for each route in Adj-RIB-In as follows (apply following steps until one route is left): select route with
Protection Solution. Strategic White Paper
Alcatel-Lucent Integrated DDoS Protection Solution Strategic White Paper Table of contents 1. DDoS Attacks Increasing in Sophistication and Scale / 1 2. DDoS Threat Landscape & Impacts / 2 2.2 Impact on
How valuable DDoS mitigation hardware is for Layer 7 Sophisticated attacks
How valuable DDoS mitigation hardware is for Layer 7 Sophisticated attacks Stop DDoS before they stop you! James Braunegg (Micron 21) What Is Distributed Denial of Service A Denial of Service attack (DoS)
Mitigating DDoS Attacks at Layer 7
Mitigating DDoS Attacks at Layer 7 Detect, Localize and Mitigate using DNS GSLB Allan Jude ScaleEngine Inc. Introductions Allan Jude 12 Years as FreeBSD Server Admin Architect of the ScaleEngine CDN (HTTP
IDG Connect DDoS Survey
KEY FINDINGS INTERACTIVE GUIDE 2016 IDG Connect DDoS Survey As Attacks Intensify DDoS Defenses Require New Strategies Introduction IDG (commissioned by A10 Networks ) conducted a survey of over 120 North
media network & internet access
This document explains the design principles behind the Sohonet Media Network, how it provides enhanced ISP services, and provides a single fully integrated connectivity solution. The Sohonet Media Platform
DISTRIBUTED DENIAL OF SERVICE OBSERVATIONS
: DDOS ATTACKS DISTRIBUTED DENIAL OF SERVICE OBSERVATIONS 1 DISTRIBUTED DENIAL OF SERVICE OBSERVATIONS NTT is one of the largest Internet providers in the world, with a significant share of the world s
DDoS Mitigation Solutions
DDoS Mitigation Solutions The Real Cost of DDOS Attacks Hosting, including colocation at datacenters, dedicated servers, cloud hosting, shared hosting, and infrastructure as a service (IaaS) supports
Restorable Logical Topology using Cross-Layer Optimization
פרויקטים בתקשורת מחשבים - 236340 - סמסטר אביב 2016 Restorable Logical Topology using Cross-Layer Optimization Abstract: Today s communication networks consist of routers and optical switches in a logical
Outline. Outline. Outline
Network Forensics: Network Prefix Scott Hand September 30 th, 2011 1 What is network forensics? 2 What areas will we focus on today? Basics Some Techniques What is it? OS fingerprinting aims to gather
Internet Traffic Trends A View from 67 ISPs
Internet Traffic Trends A View from 67 ISPs Craig Labovitz (labovit@arbor.net) Danny McPherson (danny@arbor.net) Scott Iekel-Johnson (scottij@arbor.net) Mike Hollyman (mhollyman@arbor.net) Internet Statistics
Security and Access Control Lists (ACLs)
Security and Access Control Lists (ACLs) Malin Bornhager Halmstad University Session Number 2002, Svenska-CNAP Halmstad University 1 Objectives Security Threats Access Control List Fundamentals Access
Course Overview: Learn the essential skills needed to set up, configure, support, and troubleshoot your TCP/IP-based network.
Course Name: TCP/IP Networking Course Overview: Learn the essential skills needed to set up, configure, support, and troubleshoot your TCP/IP-based network. TCP/IP is the globally accepted group of protocols
ΕΠΛ 475: Εργαστήριο 9 Firewalls Τοίχοι πυρασφάλειας. University of Cyprus Department of Computer Science
ΕΠΛ 475: Εργαστήριο 9 Firewalls Τοίχοι πυρασφάλειας Department of Computer Science Firewalls A firewall is hardware, software, or a combination of both that is used to prevent unauthorized Internet users
DDoS detection & mitigation
Introduction Name: Thomas de Looff 1 of 3 owners of PCextreme - Management - Datacenter - Network - Finance Hobbies - Programming - Running - Kitesurfing PCextreme Services - Cloud Compute & Objects -
IPV6 流 量 分 析 探 讨 北 京 大 学 计 算 中 心 周 昌 令
IPV6 流 量 分 析 探 讨 北 京 大 学 计 算 中 心 周 昌 令 1 内 容 流 量 分 析 简 介 IPv6 下 的 新 问 题 和 挑 战 协 议 格 式 变 更 用 户 行 为 特 征 变 更 安 全 问 题 演 化 流 量 导 出 手 段 变 化 设 备 参 考 配 置 流 量 工 具 总 结 2 流 量 分 析 简 介 流 量 分 析 目 标 who, what, where,
FIREWALL AND NAT Lecture 7a
FIREWALL AND NAT Lecture 7a COMPSCI 726 Network Defence and Countermeasures Muhammad Rizwan Asghar August 3, 2015 Source of most of slides: University of Twente FIREWALL An integrated collection of security
Availability Digest. www.availabilitydigest.com. Prolexic a DDoS Mitigation Service Provider April 2013
the Availability Digest Prolexic a DDoS Mitigation Service Provider April 2013 Prolexic (www.prolexic.com) is a firm that focuses solely on mitigating Distributed Denial of Service (DDoS) attacks. Headquartered
Network Performance Monitoring at Minimal Capex
Network Performance Monitoring at Minimal Capex Some Cisco IOS technologies you can use to create a high performance network Don Thomas Jacob Technical Marketing Engineer About ManageEngine Network Servers
Internet Protocol: IP packet headers. vendredi 18 octobre 13
Internet Protocol: IP packet headers 1 IPv4 header V L TOS Total Length Identification F Frag TTL Proto Checksum Options Source address Destination address Data (payload) Padding V: Version (IPv4 ; IPv6)
Protect your network: planning for (DDoS), Distributed Denial of Service attacks
Protect your network: planning for (DDoS), Distributed Denial of Service attacks Nov 19, 2015 2015 CenturyLink. All Rights Reserved. The CenturyLink mark, pathways logo and certain CenturyLink product
ICND2 NetFlow. Question 1. What are the benefit of using Netflow? (Choose three) A. Network, Application & User Monitoring. B.
ICND2 NetFlow Question 1 What are the benefit of using Netflow? (Choose three) A. Network, Application & User Monitoring B. Network Planning C. Security Analysis D. Accounting/Billing Answer: A C D NetFlow
Page 1. Outline EEC 274 Internet Measurements & Analysis. Traffic Measurements. Motivations. Applications
Outline EEC 274 Internet Measurements & Analysis Spring Quarter, 2006 Traffic Measurements Traffic measurements What metrics are we interested in? Measurement and analysis methodologies Traffic characterization
PowerLink Bandwidth Aggregation Redundant WAN Link and VPN Fail-Over Solutions
Bandwidth Aggregation Redundant WAN Link and VPN Fail-Over Solutions Find your network example: 1. Basic network with and 2 WAN lines - click here 2. Add a web server to the LAN - click here 3. Add a web,
State of Texas. TEX-AN Next Generation. NNI Plan
State of Texas TEX-AN Next Generation NNI Plan Table of Contents 1. INTRODUCTION... 1 1.1. Purpose... 1 2. NNI APPROACH... 2 2.1. Proposed Interconnection Capacity... 2 2.2. Collocation Equipment Requirements...
BB2798 How Playtech uses predictive analytics to prevent business outages
BB2798 How Playtech uses predictive analytics to prevent business outages Eli Eyal, Playtech Udi Shagal, HP June 13, 2013 Copyright 2013 Hewlett-Packard Development Company, L.P. The information contained
1. Firewall Configuration
1. Firewall Configuration A firewall is a method of implementing common as well as user defined security policies in an effort to keep intruders out. Firewalls work by analyzing and filtering out IP packets
Firewalls Netasq. Security Management by NETASQ
Firewalls Netasq Security Management by NETASQ 1. 0 M a n a g e m e n t o f t h e s e c u r i t y b y N E T A S Q 1 pyright NETASQ 2002 Security Management is handled by the ASQ, a Technology developed
Chapter 11 Cloud Application Development
Chapter 11 Cloud Application Development Contents Motivation. Connecting clients to instances through firewalls. Chapter 10 2 Motivation Some of the questions of interest to application developers: How
DDoS attacks on electronic payment systems. Sean Rijs and Joris Claassen Supervisor: Stefan Dusée
DDoS attacks on electronic payment systems Sean Rijs and Joris Claassen Supervisor: Stefan Dusée Scope High volume DDoS attacks Electronic payment systems Low bandwidth requirements: 5 from account X to
Implementing Secure Converged Wide Area Networks (ISCW)
Implementing Secure Converged Wide Area Networks (ISCW) 1 Mitigating Threats and Attacks with Access Lists Lesson 7 Module 5 Cisco Device Hardening 2 Module Introduction The open nature of the Internet
SolarWinds Certified Professional. Exam Preparation Guide
SolarWinds Certified Professional Exam Preparation Guide Introduction The SolarWinds Certified Professional (SCP) exam is designed to test your knowledge of general networking management topics and how
Federal Computer Incident Response Center (FedCIRC) Defense Tactics for Distributed Denial of Service Attacks
Threat Paper Federal Computer Incident Response Center (FedCIRC) Defense Tactics for Distributed Denial of Service Attacks Federal Computer Incident Response Center 7 th and D Streets S.W. Room 5060 Washington,
Arrow ECS University 2015 Radware Hybrid Cloud WAF Service. 9 Ottobre 2015
Arrow ECS University 2015 Radware Hybrid Cloud WAF Service 9 Ottobre 2015 Get to Know Radware 2 Our Track Record Company Growth Over 10,000 Customers USD Millions 200.00 150.00 32% 144.1 16% 167.0 15%
Traffic Monitoring : Experience
Traffic Monitoring : Experience Objectives Lebah Net To understand who and/or what the threats are To understand attacker operation Originating Host Motives (purpose of access) Tools and Techniques Who
GregSowell.com. Mikrotik Security
Mikrotik Security IP -> Services Disable unused services Set Available From for appropriate hosts Secure protocols are preferred (Winbox/SSH) IP -> Neighbors Disable Discovery Interfaces where not necessary.
Chapter 4 Restricting Access From Your Network
Chapter 4 Restricting Access From Your Network This chapter describes how to use the content filtering and reporting features of the RangeMax NEXT Wireless Router WNR834B to protect your network. You can
Firewalls. Basic Firewall Concept. Why firewalls? Firewall goals. Two Separable Topics. Firewall Design & Architecture Issues
CS 155 May 20, 2004 Firewalls Basic Firewall Concept Separate local area net from internet Firewall John Mitchell Credit: some text, illustrations from Simon Cooper Router All packets between LAN and internet
FIREWALLS & NETWORK SECURITY with Intrusion Detection and VPNs, 2 nd ed. Chapter 5 Firewall Planning and Design
FIREWALLS & NETWORK SECURITY with Intrusion Detection and VPNs, 2 nd ed. Chapter 5 Firewall Planning and Design Learning Objectives Identify common misconceptions about firewalls Explain why a firewall
21.4 Network Address Translation (NAT) 21.4.1 NAT concept
21.4 Network Address Translation (NAT) This section explains Network Address Translation (NAT). NAT is also known as IP masquerading. It provides a mapping between internal IP addresses and officially
NetFlow use cases. ICmyNet / NetVizura. Miloš Zeković, milos.zekovic@soneco.rs. ICmyNet Chief Customer Officer Soneco d.o.o.
NetFlow use cases ICmyNet / NetVizura, milos.zekovic@soneco.rs Soneco d.o.o. Serbia Agenda ICmyNet / NetVizura overview Use cases / case studies Statistics per exporter/interfaces Traffic Patterns NREN
Catalyst 6500/6000 Switches NetFlow Configuration and Troubleshooting
Catalyst 6500/6000 Switches NetFlow Configuration and Troubleshooting Document ID: 70974 Introduction Prerequisites Requirements Components Used Conventions Background Information Configure Network Diagram
Chapter 6 Configuring the SSL VPN Tunnel Client and Port Forwarding
Chapter 6 Configuring the SSL VPN Tunnel Client and Port Forwarding This chapter describes the configuration for the SSL VPN Tunnel Client and for Port Forwarding. When a remote user accesses the SSL VPN