Sidewinder G2 6.1.2 Administration Guide - Glossary of Technical ...

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Appendix F: Basic Troubleshooting Troubleshooting NTP Troubleshooting NTP 666 Interface configuration issues with HA If you modify your interface configuration, your HA configuration will not function until you update the HA Interfaces table (in the Admin Console, select High Availability > Common Parameters tab) to match the modified interface configuration. When you are finished updating the interface information, reboot the Sidewinder G2s. Troubleshooting remote interface test failover for peer-topeer HA If you have a peer-to-peer HA cluster configured and the remote host used for interface testing becomes unavailable, the primary will report an interface failure (after the specified number of failed ping attempts is reached) and failover will occur. When this happens, the new primary will receive the interface failure status from the former primary, and interface failure testing will be disabled. In this state, the standby will take over for the primary only if the primary becomes unavailable. Once the remote host is restored, you will need to issue the cf failover reset command on the standby, and then on the primary to reset and reenable the interface failover indicators. If you have NTP properly configured and enabled, you should be able to monitor NTP packets being sent/received on the appropriate Sidewinder G2 interfaces. To do so, enter the following command: tcpdump -npi ext_interface# port 123 where: ext_interface# is the external interface and number (for example em0, em1, etc.) NTP packets should be sent/received every 15-30 seconds. To check the exact time, enter the date command and compare it to a known good clock source (for example, www.time.gov). Note: An NTP proxy and an NTP server cannot run in the same burb. Therefore, if you have a proxy enabled and running in the same burb as the NTP server, the NTP server will not start.
Why did NTP stop? Appendix F: Basic Troubleshooting Troubleshooting NTP NTP is designed to automatically quit whenever the client’s time deviates from the server’s signal by more than 15 minutes. When a deviation of this magnitude occurs, NTP writes a message to file /var/log/messages before quitting. To restart NTP, first set the Sidewinder G2’s clock manually (refer to “Setting the system date and time” in Chapter 3) and then follow the directions below for restarting NTP. Why does NTP appear to be inaccurate? You probably have fixclock running. NTP clients will not synchronize with the Sidewinder G2 This may be because, when the Sidewinder G2 is configured as an NTP server, it reports itself as a stratum 0 time server. Not all clients can synchronize from a stratum 0 server. To change the stratum setting, type the following command: cf ntp add server burb=burbname ip=127.127.1.0 where: burbname = the burb that is serving time to the NTP clients. If the Sidewinder G2 is serving time to clients in multiple burbs, and one or more clients in each burb has a problem with stratum 0 servers, you must type this command once for each burb. Restarting NTP from the UNIX prompt If the NTP process stops, you can restart the NTP process by doing the following: 1 At a Sidewinder G2 command prompt, log in and enter the following command to switch to the Admn role: srole 2 To start the NTP time server, enter the following command: cf server restart ntp burb=burb 3 [Optional] Verify the state of the NTP servers by entering the following command: cf server status ntp 667
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ADMINISTRATION GUIDE
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Copyright © 2006 Secure Computing
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Other Terms and Conditions This pro
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CONTENTS Preface . . . . . . . . .
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Table of Contents Modifying the sta
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Table of Contents Configuring the S
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Table of Contents About mail exchan
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Table of Contents Configuring and d
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Table of Contents CHAPTER 20 IPS At
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Table of Contents APPENDIX F Basic
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PREFACE Who should read this guide
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Online help Preface The Sidewinder
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1 CHAPTER Introduction In this chap
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Figure 2: Protecting multiple netwo
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Chapter 1: Introduction The Type En
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Type Enforced attributes Chapter 1:
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Figure 4: Multiple Type Enforced ar
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Chapter 1: Introduction Additional
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Chapter 1: Introduction Additional
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Network Services Sentry (NSS) Chapt
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2 CHAPTER Administrator’s Overvie
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Admin Console basics Chapter 2: Adm
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Figure 7: Admin Console Login windo
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Figure 9: Main Admin Console menu M
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Admin Console conventions Chapter 2
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Figure 11: Open File window Opening
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Figure 14: Find/Replace window Ente
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Chapter 2: Administrator’s Overvi
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Chapter 2: Administrator’s Overvi
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Figure 15: sshd Server Configuratio
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To access the trusted Telnet server
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3 CHAPTER General System Tasks In t
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Figure 16: System Shutdown window E
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Setting up and maintaining administ
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Figure 18: Administrator Informatio
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Changing passwords Setting the syst
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Using system roles to access type e
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Figure 20: Configuration file backu
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Chapter 3: General System Tasks Con
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Activating the Sidewinder G2 licens
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Chapter 3: General System Tasks Act
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Figure 23: Firewall License: Compan
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Figure 25: Firewall License: Enroll
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Chapter 3: General System Tasks Pro
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Enabling and disabling servers Figu
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Server Name Notes Chapter 3: Genera
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Configuring virus scanning services
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Figure 32: IDS Server window About
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Figure 34: Software Management: Sum
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Chapter 3: General System Tasks Loa
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Chapter 3: General System Tasks Loa
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Modifying the interface configurati
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About the Interface Status window M
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Chapter 3: General System Tasks Mod
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About the Aliases: New/Modify Netwo
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About the Static: Route window Conf
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About the SSL certificate fields fo
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Enabling/disabling the UPS server C
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4 CHAPTER Understanding Policy Conf
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Figure 45: Example of active rules
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Chapter 4: Understanding Policy Con
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Figure 47: User Groups user group n
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Figure 48: Netgroup Subnet objects
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Application Defenses Table 11: Samp
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Simple proxy rule examples Chapter
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Table 17: Proxy rules for the advan
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IP Filter rule basics Chapter 4: Un
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Figure 52: Example network Chapter
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Figure 53: Normal NAT IP Filter rul
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5 CHAPTER Creating Rule Elements In
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Chapter 5: Creating Rule Elements C
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About the Group Information tab Abo
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About the User Password tab Chapter
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About the User Group Membership win
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Figure 60: New Network Object windo
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Figure 62: Host network object wind
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Figure 63: IP Address network objec
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Figure 65: Subnet network object wi
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Figure 67: Group Membership window
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About the Service Groups window Cha
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6 CHAPTER Configuring Application D
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Chapter 6: Configuring Application
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About the URL Control tab Chapter 6
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Figure 73: Web/Secure Web: HTTP Rep
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Figure 74: Web/Secure Web: MIME/Vir
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Figure 76: Web/Secure Web: SmartFil
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About the Keyword Search tab Chapte
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Figure 81: Mail (Sendmail) MIME/Vir
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Configuring MIME filtering rules Ch
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Creating Mail (SMTP proxy) Defenses
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Figure 84: Mail (SMTP proxy): Desti
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Creating Citrix Application Defense
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Configuring the FTP Enforcements ta
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Configuring Virus/Spyware filtering
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Creating IIOP Application Defenses
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Configuring the H.323 Filter tab Ch
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About the Service Name (SID): New S
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Creating SOCKS Application Defenses
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Figure 95: SNMP v1: OID Editing win
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Creating Standard Application Defen
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Configuring connection properties C
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Configuring connection ports Chapte
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7 CHAPTER Configuring Network Defen
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Figure 100: Network Defense window
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About the Network Defenses: TCP tab
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Configuring the UDP Network Defense
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Configuring the ICMP Network Defens
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Configuring the ARP Network Defense
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8 CHAPTER Creating Rules and Rule G
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About the Duplicate Rule Name windo
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Chapter 8: Creating Rules and Rule
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Figure 110: Proxy Rule: Authenticat
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Entering information on the Time ta
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Figure 113: IP Filter Rules window
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Figure 114: IP Filter Rules Source/
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Figure 115: IP Filter Time tab Abou
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Chapter 8: Creating Rules and Rule
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Figure 117: Modify Groups window Ch
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Selecting your active policy rules
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Figure 120: IP Filter General Prope
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9 CHAPTER Configuring Proxies In th
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Chapter 9: Configuring Proxies Prox
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Redirected proxy connections Chapte
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Figure 123: Port redirection for in
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Proxy Name Type and Port Descriptio
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Proxy Name Type and Port Descriptio
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Notes on selected proxy configurati
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Notes on using the FTP proxy Chapte
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HTTP/HTTPS considerations Chapter 9
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Figure 124: News server in front of
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About the T.120 proxy Chapter 9: Co
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Chapter 9: Configuring Proxies Note
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Figure 126: Proxies window About th
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Figure 127: ica proxy Advanced tab
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Configuring connection ports Chapte
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10 CHAPTER Setting Up Authenticatio
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Administrator authentication Chapte
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Supported authentication methods Ch
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SafeWord authentication Chapter 10:
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Chapter 10: Setting Up Authenticati
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Users, groups, and authentication C
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Figure 131: SSO Cached Authenticati
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Figure 133: Password Configuration
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Entering information on the RADIUS
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Adding or modifying a SafeWord serv
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Figure 137: SNK Configuration windo
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Entering information on the Windows
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Entering information on the Single
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Setting up authentication for servi
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Setting up authentication for Web s
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11 CHAPTER DNS (Domain Name System)
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About Sidewinder hosted DNS Chapter
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Figure 140: Mail exchanger example
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Advanced configurations Enabling an
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Figure 141: Transparent DNS Configu
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Chapter 11: DNS (Domain Name System
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Entering information on the Forward
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Adding an IP address Figure 146: DN
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About the Zone List window About th
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Figure 147: Master Zone Attributes
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Adding a forward lookup sub-domain
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Figure 148: Master Zone Contents ta
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Adding a new forward lookup entry C
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Table 26: DNS configuration options
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Figure 150: Reconfiguring Sidewinde
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About the Reconfiguring DNS: Sidewi
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DNS message logging Chapter 11: DNS
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12 CHAPTER Electronic Mail In this
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Chapter 12: Electronic Mail Overvie
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Sendmail differences on Sidewinder
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Reconfiguring mail Figure 152: Reco
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Managing sendmail Figure 153: sendm
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Chapter 12: Electronic Mail Editing
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Figure 155: Spamfilter: Whitelist C
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Chapter 12: Electronic Mail Configu
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About the COPY action Chapter 12: E
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Chapter 12: Electronic Mail Configu
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Other sendmail features Creating a
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5 Save the changes you made to file
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Allowing or denying mail on a user
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Chapter 12: Electronic Mail Managin
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13 CHAPTER Setting Up Web Services
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Figure 158: Access to your Web serv
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Figure 161: Option 2: The Web proxy
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Setting up Web access using the HTT
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Using the Web proxy server Figure 1
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Configuring the Web proxy server Fi
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Figure 168: Web Proxy Server window
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Configuring Web Proxy Server HTTP f
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Configuring browsers for the Web pr
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Certain browsers on UNIX Chapter 13
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14 CHAPTER Configuring Virtual Priv
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Protecting your information What ar
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Authenticating IKE VPNs Chapter 14:
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Configuring a VPN client Chapter 14
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Authentication Summary Automatic ke
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Chapter 14: Configuring Virtual Pri
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Understanding virtual burbs Chapter
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Create the virtual burb Configure p
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About the Client Address Pools wind
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Adding or modifying a subnet addres
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Figure 178: Client Address Pools: F
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Adding or modifying a client identi
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Table 28: Supported X.500 Attribute
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Single certificate versus Certifica
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Adding a Certificate Authority Chap
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Figure 180: Remote Identities tab A
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Figure 181: Firewall certificates A
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Figure 182: Remote certificates def
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Selecting a new proxy certificate I
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Figure 185: Import Firewall Certifi
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Exporting both the certificate and
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About the Security Associations win
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Configuring password information on
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Entering Certificate + Certificate
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Entering Manual information on the
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Entering information on the Advance
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Figure 191: VPN between two corpora
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Figure 192: One VPN association per
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Figure 193: One VPN association for
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15 CHAPTER Configuring the SNMP Age
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Figure 195: Community name within a
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Figure 196: MIBs supported by the S
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Defining a community name Defining
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Communication with systems in an ex
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16 CHAPTER One-To-Many Clusters In
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Considerations when using One-To-Ma
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Configuring One- To-Many Chapter 16
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Figure 201: One To Many Management
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Chapter 16: One-To-Many Clusters Co
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Chapter 16: One-To-Many Clusters Co
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Chapter 16: One-To-Many Clusters Un
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17 CHAPTER High Availability In thi
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HA configuration options Chapter 17
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You can configure failover HA in on
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Configuring the heartbeat burbs Cha
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Chapter 17: High Availability Confi
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Removing a secondary/standby from a
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Managing an HA cluster Features tha
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Chapter 17: High Availability Manag
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Changing the multicast address Chap
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About the Local Parameters tab Chap
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Chapter 17: High Availability Manag
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18 CHAPTER Monitoring In this chapt
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About the dashboard Viewing device
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Figure 211: System information: Dis
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Figure 213: Network Traffic: Interf
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Viewing IPS attack and system event
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Figure 218: Attacks by Service wind
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Monitoring Sidewinder G2 status usi
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finger Chapter 18: Monitoring Monit
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dig Chapter 18: Monitoring Monitori
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19 CHAPTER Auditing and Reporting I
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Auditing on the Sidewinder G2 Chapt
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Figure 221: Audit Viewing: View Mod
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Chapter 19: Auditing and Reporting
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Figure 224: Audit Veiwing: Filterin
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Attack Description Application Defe
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Attack Description Chapter 19: Audi
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Example 2: Filtering for services a
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Understanding audit messages Chapte
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Generating reports using the Admin
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Figure 226: Show Report window Tabl
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Report type Description Chapter 19:
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Report type Description Table 37: A
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Generating reports using Sidewinder
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20 CHAPTER IPS Attack and System Ev
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About the IPS Attack Responses wind
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Attack Description Application Defe
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Chapter 20: IPS Attack and System E
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Figure 230: Attack Responses: Setti
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Figure 232: System Responses Modify
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Event Description system critical a
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Figure 233: System Responses: Respo
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Sidewinder G2 SNMP traps Chapter 20
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Chapter 20: IPS Attack and System E
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A APPENDIX Command Line Reference I
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Sidewinder G2 area Commands Area De
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About editing Sidewinder G2 files A
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Changing file types in the operatio
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etc/monthly Appendix A: Command Lin
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CRL and certificate retrieval cron
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B APPENDIX Setting Up Network Time
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Figure 235: Sidewinder G2 as an NTP
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Figure 237: NTP conflict: Sidewinde
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Using command line: Appendix B: Set
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C APPENDIX Configuring Dynamic Rout
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Figure 238: Three OSPF protocol pha
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Figure 240: Sidewinder G2 within OS
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Figure 242: OSPF Properties tab Abo
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Configuring the OSPF Area: Interfac
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Configuring the OSPF Areas: Network
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D APPENDIX Configuring Dynamic Rout
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Page 661 and 662: Enabling/ disabling the routed serv
Page 663 and 664: E APPENDIX Setting Up SmartFilter S
Page 665 and 666: 4 Click Evaluate this version. 5 Co
Page 667 and 668: Figure 252: SmartFilter for Web and
Page 669 and 670: Appendix E: Setting Up SmartFilter
Page 671 and 672: F APPENDIX Basic Troubleshooting In
Page 673 and 674: Restoring access to the Admin Conso
Page 675 and 676: Appendix F: Basic Troubleshooting B
Page 677 and 678: Restoring system files Appendix F:
Page 679 and 680: 8 [Conditional] If needed, change p
Page 681 and 682: Appendix F: Basic Troubleshooting R
Page 683 and 684: Adding hardware to an active Sidewi
Page 685 and 686: Recovering when the licensed NIC fa
Page 687 and 688: What to do if the boot process fail
Page 689 and 690: If you forget your administrator pa
Page 691 and 692: Interpreting beep patterns Table 45
Page 693 and 694: Troubleshooting proxy rules Appendi
Page 695 and 696: Appendix F: Basic Troubleshooting T
Page 697 and 698: Understanding FTP and Telnet connec
Page 699 and 700: Active firewall list: 10.10.10.7 St
Page 701: Appendix F: Basic Troubleshooting T
Page 705 and 706: GLOSSARY ACE/Server A server made b
Page 707 and 708: Glossary burb A set of one or more
Page 709 and 710: Glossary external DNS External DNS
Page 711 and 712: ISAKMP (internet security associati
Page 713 and 714: ODBC (Open Database Connectivity) G
Page 715 and 716: eference implementation An IETF ter
Page 717 and 718: Glossary subnet A network addressin
Page 719 and 720: INDEX A A record (address record) 3
Page 721 and 722: B backup backup_file_list 51 comple
Page 723 and 724: domains access 7 Admn 8 checking 49
Page 725 and 726: Internet server 317 InterNIC 529 IP
Page 727 and 728: networks connections report 527 int
Page 729 and 730: R RADIUS authentication 281, 292 Re
Page 731 and 732: Sidewinder G2 Enterprise Manager xx
Page 733 and 734: user passwords 137 users changing p
Page 736: The Sidewinder G2 ® Security Appli
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