Configuring Cisco Ip Security

Florent Parent, Jean Parent, Syngress Media

466 pages, parution le 01/11/2000

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Résumé

As more and more companies take their critical applications and business functions online, they need to know that their networks, systems, and data are protected. Cisco Systems, the world's largest internetworking vendor, has developed hardware and software solutions that provide security by tracking access by customers and business partners and prohibiting access by unauthorized outsiders. Configuring Cisco IP Security covers the full range of Cisco Secure hardware and software solutions, including PIX Firewall, Intrusion Detection System, and Authentication Agent, to help engineers and administrators protect their ISPs, corporate networks, and e-commerce sites. The book's user-friendly format includes a technology overview, a "fast-track" summary, easy-to-read chapters written by subject-matter experts, and dozens of helpful illustrations, screen shots, and captions.

Contents

Chapter 1: Introduction to IP Network Security: Introduction; Protecting Your Site; Typical Site Scenario; Host Security; Network Security; Availability; Integrity; Confidentiality; Access Control; Authentication; Authorization; Accounting; Network Communication in TCP/IP; Application Layer; Transport Layer; TCP; TCP Connection; UDP; Internet Layer; IP; ICMP; ARP; Network Layer; Security in TCP/IP; Cryptography; Symmetric Cryptography; Asymmetric Cryptography; Hash Function; Public Key Certificates; Application Layer Security; Pretty Good Privacy (PGP); Secure HyperText Transport Protocol (S-HTTP); Transport Layer Security; Secure Sockets Layer (SSL) and Transport Layer Security (TLS); Secure Shell (SSH); Filtering; Network Layer Security; IP Security Protocols (IPSec); Filtering (Access Control Lists); Data Link Layer Security; Authentication; Terminal Access Controller Access; Control System Plus (TACACS+); Remote Access Dial-In User Service (RADIUS); Kerberos; Cisco IP Security Hardware and Software; Cisco Secure PIX Firewall; Cisco Secure Integrated Software; Cisco Secure Integrated VPN Software; Cisco Secure VPN Client; Cisco Secure Access Control Server; Cisco Secure Scanner Cisco Secure Intrusion Detection System; Cisco Secure Policy Manager; Cisco Secure Consulting Services; Summary; FAQs
Chapter 2: Traffic Filtering on the Cisco IOS: Introduction; Access Lists; Access List Operation; Types of Access Lists; Standard IP Access Lists; Source Address and Wildcard Mask; Keywords any and host; Keyword log; Applying an Access List; Extended IP Access Lists; Keywords permit or deny; Protocol; Source Address and Wildcard-Mask; Destination Address and Wildcard Mask; Source and Destination Port Number; Established; Named Access Lists; Editing Access Lists; Problems with Access Lists; Lock-and-Key Access Lists; Reflexive Access Lists; Building Reflexive Access Lists; Applying Reflexive Access Lists; Reflexive Access List Example; Context-based Access Control; The Control-based Access Control Process; Configuring Control-based Access Control; Inspection Rules; Applying the Inspection Rule; Configuring Port to Application Mapping; Configuring PAM; Protecting a Private Network; Protecting a Network Connected to the Internet; Protecting Server Access Using Lock-and-Key; Protecting Public Servers Connected to the Internet; Summary; FAQs
Chapter 3: Network Address Translation (NAT): Introduction; NAT Overview; Overview of NAT Devices; Address Realm; NAT; Transparent Address Assignment; Transparent Routing; Public, Global, and External Networks; Private and Local Networks; Application Level Gateway; NAT Architectures; Traditional or Outbound NAT; Network Address Port Translation (NAPT); Static NAT; Twice NAT; Guidelines for Deploying NAT and NAPT; Configuring NAT on Cisco IOS; Configuration Commands; Verification Commands; Configuring NAT between a Private Network and Internet; Configuring NAT in a Network with DMZ; Considerations on NAT and NAPT; IP Address Information in Data; Bundled Session Applications; Peer-to-Peer Applications; IP Fragmentation with NAPT En Route; Applications Requiring Retention of Address Mapping; IPSec and IKE; Summary; FAQs
Chapter 4: Cisco PIX Firewall: Introduction; Overview of the Security Features; Differences Between IOS 4.x and 5.x; Initial Configuration; Installing the PIX Software; Basic Configuration; Installing the IOS over TFTP; Command Line Interface; IP Configuration; IP Address; Configuring NAT and NAPT; Security Policy Configuration; Security Strategies; Deny Everything That Is Not Explicitly Permitted; Allow Everything That Is Not Explicitly Denied; Identify the Resources to Protect; Demilitarized Zone (DMZ); Identify the Security Services to Implement; Authentication and Authorization; Access Control; Confidentiality; URL, ActiveX, and Java Filtering; Implementing the Network Security Policy; Authentication Configuration in PIX; Access Control Configuration in PIX; Securing Resources; URL, ActiveX, and Java Filtering; PIX Configuration Examples; Protecting a Private Network; Protecting a Network Connected to the Internet; Protecting Server Access Using Authentication; Protecting Public Servers Connected; to the Internet; Securing and Maintaining the PIX; System Journaling; Securing the PIX; Summary; FAQs
Chapter 5: Virtual Private Networks: Introduction; What Is a VPN?; Overview of the Different VPN Technologies; The Peer Model; The Overlay Model; Link Layer VPNs; Network Layer VPNs; Transport and Application Layer VPNs; Layer 2 Transport Protocol (L2TP); Configuring Cisco L2TP; LAC Configuration Example; LNS Configuration Example; IPSec; IPSec Architecture; Security Association; Anti-Replay Feature; Security Policy Database; Authentication Header; Encapsulating Security Payload; Manual IPSec; Internet Key Exchange; Authentication Methods; IKE and Certificate Authorities; IPSec Limitations; Network Performance; Network Troubleshooting; Interoperability with Firewalls and Network Address Translation Devices; IPSec and Cisco Encryption Technology (CET); Configuring Cisco IPSec; IPSec Manual Keying Configuration; IPSec over GRE Tunnel Configuration; Connecting IPSec Clients to Cisco IPSec; Cisco Secure VPN Client; Windows 2000; Linux FreeS/WAN; BSD Kame Project; Summary; FAQs
Chapter 6: Cisco Authentication, Authorization, and Accounting Mechanisms: Introduction; AAA Overview; AAA Benefits; Cisco AAA Mechanisms; Supported AAA Security Protocols; RADIUS; TACACS+; Kerberos; RADIUS, TACACS+, or Kerberos; Authentication; Login Authentication Using AAA; PPP Authentication Using AAA; Enable Password Protection for Privileged; EXEC Mode; Authorization; Configure Authorization; TACACS+ Configuration Example; Accounting; Configuring Accounting; Suppress Generation of Accounting Records; for Null Username Sessions; RADIUS Configuration Example; Typical RAS Configuration Using AAA; Typical Firewall Configuration Using AAA; Authentication Proxy; How the Authentication Proxy Works; Comparison with the Lock-and Key Feature; Benefits of Authentication Proxy; Restrictions of Authentication Proxy; Configuring Authentication Proxy; Configuring the HTTP Server; Configure Authentication Proxy; Authentication Proxy Configuration Example; Summary; FAQs
Chapter 7: Intrusion Detection: Introduction; What Is Intrusion Detection?; Network Attacks and Intrusions; Poor Network Perimeter/Device Security; Network Sniffers; Scanner Programs; Network Topology; Unattended Modems; Poor Physical Security; Application and Operating Software Weaknesses; Software Bugs; Web Server/Browser-based Attacks; Getting Passwords-Easy Ways in Cracking Programs; Trojan Horse Attacks; Virus or Worm Attacks; Human Failure; Poorly Configured Systems; Information Leaks; Malicious Users; Weaknesses in the IP Suite of Protocols; Layer 7 Attacks; Layer 5 Attacks; Layer 3 and 4 Attacks; Network and Host-based; Intrusion Detection; Network IDS; Host IDS; What Can't IDSs Do?; Deploying in a Network; Sensor Placement; Network Vulnerability Analysis Tools; Cisco's Approach to Security; Cisco Secure Scanner (NetSonar); Minimum System Specifications for; Secure Scanner V2.0; Searching the Network for Vulnerabilities; Viewing the Results; Keeping the System Up-to-Date; Cisco Secure Intrusion Detection System (NetRanger); What Is NetRanger?; Before You Install; Director and Sensor Setup; General Operation; nrConfigure; Data Management Package (DMP); Cisco IOS Intrusion Detection System; Configuring IOS IDS Features; Associated Commands; Cisco Secure Integrated Software (Firewall Feature Set); Summary; FAQs
Chapter 8: Network Security Management: Introduction PIX Firewall Manager; PIX Firewall Manager Overview; PIX Firewall Manager Benefits; Supported PIX Firewall IOS Version Versus; PIX Firewall Manager Version; Installation Requirements for PIX Firewall Manager; PIX Firewall Manager Features; Using PIX Firewall Manager; Configuration; Installation Errors in PIX Firewall Manager; A Configuration Example; CiscoWorks 2000 ACL Manager; ACL Manager Overview; ACL Manager Device and Software Support; Installation Requirements for ACL Manager; ACL Manager Features; Using a Structure Access Control Lists; Security Policy; Increase Deployment Time for Access Control Lists; Ensure Consistency of Access Control Lists; Keep Track of Changes Made on the Network; Troubleshooting and Error Recovery; Basic Operation of ACL Manager; Using ACL Manager; Configuration; An ACL Manager Configuration Example; Cisco Secure Policy Manager; Cisco Secure Policy Manager Overview; The Benefits of Using Cisco Secure Policy Manager; Installation Requirements for Cisco; Secure Policy Manager; Cisco Secure Policy Manager Features; Cisco Firewall Management; VPN and IPSec Security Management; Security Policy Management; Network Security Deployment Options; Cisco Secure Policy Manager Device and; Software Support; Using Cisco Secure Policy Manager; Configuration; CSPM Configuration Example; Cisco Secure ACS; Cisco Secure ACS Overview; Cisco Secure ACS Benefits; Installation Requirements for Cisco Secure ACS; Cisco Secure ACS Features; Placing Cisco Secure ACS in Your Network; Cisco Secure ACS Device and Software Support; Using Cisco Secure ACS; Configuration; Cisco Secure ACS Configuration Example; Summary; FAQs
Chapter 9: Security Processes and Managing: Cisco Security Fast Track; Introduction; What Is a Managing; Cisco Security Fast Track?; Introduction to Cisco Network Security; Network Security; Network Communications in TCP/IP; Security in TCP/IP; Traffic Filtering on the Cisco IOS; Access Lists; Standard and Extended Access Lists; Reflexive Access Lists; Context-based Access Control; Network Address Translation (NAT); Private Addresses; Network Address Translation; Static NAT; Traditional or Outbound NAT; Network Address Port Translation (NAPT or PAT); Considerations; Cisco PIX Firewall; Security Policy Configuration; Securing and Maintaining the PIX; Virtual Private Networks (VPNs); L2TP; IPSec; Network Troubleshooting; Interoperability with Firewalls and Network Address; Translation Devices; Cisco Authentication, Authorization and Accounting Mechanisms; Authentication; Authorization; Accounting; Intrusion Detection; What Is Intrusion Detection?; Cisco Secure Scanner (NetSonar); Cisco Secure NetRanger; Cisco Secure Intrusion Detection Software; Network Security Management; Cisco PIX Firewall Manager; CiscoWorks 2000 ACL Manager; Cisco Secure Policy Manager; Cisco Secure Access Control Manager; General Security Configuration Recommendations on Cisco; Remote Login and Passwords; Disable Unused Network Services; Logging and Backups; Traffic Filtering; Physical Access; Keeping Up-to-Date; Summary; FAQs
Index

L'auteur - Jean Parent

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L'auteur - Syngress Media

Syngress Media, Inc. creates books and software for information technology professionals seeking skill enhancement and career advancement. Its products are designed to comply with vendor and industry standard course curricula and are optimized for certification exam preparation

Caractéristiques techniques

	PAPIER
Éditeur(s)	Syngress
Auteur(s)	Florent Parent, Jean Parent, Syngress Media
Parution	01/11/2000
Nb. de pages	466
Format	18,6 x 23,2
Couverture	Broché
Poids	823g
Intérieur	Noir et Blanc
EAN13	9781928994176

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