Sidewinder G2 6.1.1 Administration Guide - Glossary of Technical ...

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Troubleshooting proxy rules F-24 Basic Troubleshooting Failed connection requests If the Sidewinder G2 rejects a connection request that you feel should have succeeded, you can take steps to determine why the connection was rejected. The steps shown below will help you to locate and correct rule configuration errors. They will also help you gain a better understanding of how those rules work. 1. Start the Admin Console and select Services Configuration -> Proxies. Verify that the appropriate proxy is enabled. The most common mistake is failing to enable the service type indicated by the proxy rule. Tip:Verify that all appropriate servers are enabled as well. 2. Select Policy Configuration -> Rules. Verify that the proxy rule for the proxy or server specifies the correct network. You need to enable the service type on the correct network to listen for incoming connections. In the Rules Source/Dest tab, this corresponds to the Source Burb column. 3. Verify the position of the rules within the Active Rules window. (Select Policy Configuration -> Rules -> and then click View Active Policy). The order of the rules in the Active Rules window is important. The attributes of a connection request sometimes may match more than one proxy rule. See “Creating proxy rules” on page 7-4 for a detailed example. 4. Check the audit log information. If the connection still fails, scan the audit log to determine which proxy rule denied the connection. See Chapter 18 for details on viewing audit. The below displays a common scenario, a connection that failed to match a rule: Apr 29 16:52:29 2002 CDT f_nss a_server t_acldeny p_major pid: 27122 ruid: 0 euid: 0 pgid: 188 fid: 2000001 logid: 0 cmd: ’nss’ domain: nss1 edomain: nss1 srcip: 172.17.9.27 srcburb: 1 dstip: 172.17.9.27 dstburb: 1 protocol: 6 service_name: telnet agent_type: server user_name: authmethod: acl_id: cache_hit: 0 5. Turn on verbose auditing of rule (ACL) checks.
Troubleshooting proxy rules To determine why no proxy rule matched the connection request, type the following command to turn on verbose auditing of rule checks: cf acl set loglevel=4 This increases the level of rule audits from the default level 2 (minor) to level 4 (major). Note: Modifications to the log level setting will not be overwritten if acld is restarted. To return the log level to its default value, you must manually reset it. When the connection attempt is rejected, the proxy or server will generate a more verbose audit message as shown below: May 5 02:37:42 2002 CDT f_ping_proxy a_aclquery t_info p_major pid: 184 ruid: 0 euid: 0 pgid: 184 fid: 2000001 logid: 0 cmd: 'pingp' domain: Ping edomain: Ping +|pingp|INFO|MAJOR|PING_PROXY|aclQUERY =Skipped 'http_out': query service 'ping' != rule 'http'. Skipped 'telnet_external': query agent 'proxy' != rule 'server'. Skipped 'http_ssl_out': query service 'ping' != rule 'https'. Skipped 'ftp_out': query service 'ping' != rule 'ftp'. Skipped 'telnet_out': query service 'ping' != rule 'telnet'. Skipped 'nntp_out': query service 'ping' != rule 'nntp'. Skipped 'real_media_out': query service 'ping' != rule 'RealMedia'. Skipped 'rtsp_out': query service 'ping' != rule 'rtsp'. Skipped 'gopher_out': query service 'ping' != rule 'gopher'. Skipped 'finger_out': query service 'ping' != rule 'finger'. Basic Troubleshooting F-25
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ADMINISTRATION GUIDE
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Copyright © 2005 Secure Computing
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Other Terms and Conditions This pro
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Table of Contents Chapter 1: Introd
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Table of Contents Enabling and disa
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Table of Contents Creating SNMP App
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Table of Contents About Sidewinder
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Table of Contents Configuring the S
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Table of Contents Active connection
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Table of Contents RIP with the Side
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Who should read this guide What is
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Chapter title Description Chapter 1
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Online help Where to find additiona
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C HAPTER 1 Introduction About this
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Figure 1-2. Protecting multiple net
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The Type Enforced environment Table
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Figure 1-3. Example of domain separ
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Additional Sidewinder G2 operating
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Proxy software and access control A
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C HAPTER 2 Administrator’s Overvi
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Figure 2-1. Sidewinder G2 administr
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Figure 2-2. Admin Console Login win
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Figure 2-3. Feature Notification wi
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About the top portion of the Admin
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Admin Console conventions Admin Con
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Figure 2-5. File Editor window Abou
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Figure 2-7. Backup File window Ente
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Remote administration using Secure
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Figure 2-10. sshd Server Configurat
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Administering Sidewinder G2 using T
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C HAPTER 3 General System Tasks Abo
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Figure 3-1. System Shutdown window
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Setting up and maintaining administ
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Figure 3-3. Administrator Informati
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Changing passwords Setting the syst
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Using system roles to access type e
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Configuration file backup and resto
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What is backed up and restored What
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Configuration file backup and resto
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Activating the Sidewinder G2 licens
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From a workstation that has Web acc
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Figure 3-8. Firewall License: Compa
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Figure 3-10. Firewall License: Enro
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Protected host licensing and the Ho
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Figure 3-11. Determining which VPN
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Table 3-3. Sidewinder G2 servers Se
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Configuring the synchronization ser
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Figure 3-14. Scanner: Advanced tab
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Figure 3-15. Scanner: Signature tab
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Configuring the shund server Figure
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Figure 3-18. IDS Configuration: Shu
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Figure 3-20. Software Management: I
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Loading and installing patches 5. C
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Loading and installing patches 3. S
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Modifying the burb configuration 2.
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Modifying the Configuration tab Mod
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About the Aliases: New/ Modify Netw
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Modifying the static route About th
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About the SSL certificate fields fo
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Figure 3-26. UPS Configuration wind
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C HAPTER 4 Understanding Policy Con
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Figure 4-2. Example of active rules
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Policy configuration basics The fol
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Rule elements Network objects—Ne
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Figure 4-4. User Groups user group
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Rule elements If an organization re
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Example of a rule that uses a servi
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Application Defenses You can also c
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Proxy rule basics Table 4-4. Applic
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Proxy rule basics the user request
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Proxy rule basics Table 4-5 summari
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Table 4-7. Proxy rules for sample c
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Table 4-9. Proxy rules for the adva
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Mutually exclusive rules for Transp
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Figure 4-7. IP Filtering on non-TCP
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Figure 4-8. IP Filtering on TCP/UDP
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Setting the IP Filter NAT port rewr
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Figure 4-11. "Source port" NAT IP F
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C HAPTER 5 Creating Rule Elements A
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Creating users and user groups Mod
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About the Group Information tab Abo
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About the User Password tab Creatin
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Figure 5-4. User Group Membership w
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Figure 5-6. New Network Object wind
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Entering domain information Figure
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Figure 5-9. IP Address network obje
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About the Netmap Members window Cre
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Figure 5-12. Network Object: netgro
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Creating service groups Figure 5-14
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C HAPTER 6 Configuring Application
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Viewing Application Defense informa
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Figure 6-2. Application Defense: We
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Creating Web or Secure Web Applicat
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Figure 6-5. Web/Secure Web: HTTP Re
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Figure 6-6. Web/Secure Web: MIME/Vi
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Creating Web Cache Application Defe
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Creating Mail Application Defenses
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Figure 6-10. Mail Size tab Creating
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Creating Mail Application Defenses
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Figure 6-12. Mail MIME/ Virus tab A
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Configuring MIME filtering rules Cr
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Creating Citrix Application Defense
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Creating FTP Application Defenses F
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Figure 6-16. Application Defenses:
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Creating Multimedia Application Def
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Figure 6-18. Application Defenses:
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Creating SOCKS Application Defenses
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Creating SNMP Application Defenses
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Figure 6-22. Example of OID numberi
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Figure 6-24. Application Defense Gr
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Configuring connection properties d
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C HAPTER 7 Creating Rules and Group
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Viewing rules and rule groups You c
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Entering information on the Proxy R
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Creating proxy rules 5. [Optional]
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Figure 7-4. Proxy Rule: Time tab Cr
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Figure 7-5. Proxy Rule: Application
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Figure 7-6. IP Filter Rules window
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About the IP Filter Source/ Dest ta
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Figure 7-8. IP Filter Time tab Crea
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Creating and managing rule groups C
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Figure 7-10. Modify Groups window A
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Figure 7-11. Active Rules window Ab
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Figure 7-13. IP Filter General Prop
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C HAPTER 8 Configuring Proxies Abou
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Proxy basics Important: Network att
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Redirected proxy connections Config
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Figure 8-2. Address redirection for
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Standard Sidewinder G2 proxies Prox
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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 Notes
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Sun RPC proxy considerations Notes
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Figure 8-5. News server behind the
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Proxy Name—Displays the name of t
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Figure 8-7. ica proxy Advanced tab
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Configuring connection ports Settin
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C HAPTER 9 Setting Up Authenticatio
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Administrator authentication Authen
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Supported authentication methods Su
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Supported authentication methods Wh
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Authentication process overview Aut
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Users, groups, and authentication C
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Configuring authentication services
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Figure 9-1. SSO Cached Authenticati
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Figure 9-3. LDAP configuration wind
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Figure 9-4. Password Configuration
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Adding or modifying a RADIUS server
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Figure 9-7. SecurID Configuration w
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Figure 9-8. SNK Configuration windo
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Adding or modifying a Windows domai
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Configuring SSO b. In the Edit Logi
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Setting up authentication for servi
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Setting up authentication for admin
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Allowing users to change their pass
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. Select Manual Proxy Configuration
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C HAPTER 10 Domain Name System (DNS
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What is DNS? In a hosted DNS config
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Figure 10-1. Mail exchanger example
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Enabling and disabling your DNS ser
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Managing your current DNS configura
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Configuring hosted DNS servers Figu
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Figure 10-6. DNS Server Configurati
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Entering information on the Advance
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Figure 10-7. DNS Zones window Confi
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About the Zone List window About th
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Figure 10-8. Master Zone Attributes
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Adding a forward lookup sub-domain
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Figure 10-9. Master Zone Contents t
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Adding a new forward lookup entry C
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Reconfiguring DNS Reconfiguring DNS
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Figure 10-10. Reconfigure transpare
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About the Reconfiguring DNS: Sidewi
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Manually editing DNS configuration
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C HAPTER 11 Electronic Mail About t
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Overview of e-mail on Sidewinder G2
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Sendmail differences on Sidewinder
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Managing sendmail Managing sendmail
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Figure 11-2. Reconfigure Mail windo
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Figure 11-3. Sidewinder G2 mailerta
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Configuring advanced antispam optio
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Configuring the policy.cfg file Con
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About the COPY action Configuring a
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Configuring advanced anti-spam opti
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Redirecting mail to a different des
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Other sendmail features You can con
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Figure 11-5. Type of relayed messag
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Managing mail queues Managing mail
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C HAPTER 12 Setting Up Web Services
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Figure 12-3. Access to the internal
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Figure 12-5. Option 2: The Web prox
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Figure 12-7. Standard (transparent)
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Using the HTTP proxy 4. Create an H
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Using the Web proxy server Caching
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Figure 12-10. Web proxy server wind
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Figure 12-12. Web Proxy Server wind
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Configuring Web Proxy Server HTTP f
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Configuring browsers for the Web pr
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Internet Explorer 5.x/6.x Configuri
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1 C HAPTER 13 Configuring Virtual P
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Protecting your information What ar
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Sidewinder G2 VPN overview To preve
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Configuring hardware acceleration f
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Sidewinder G2 VPN overview Implemen
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Configuring the ISAKMP server Figur
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Configuring the Certificate server
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Understanding virtual burbs Underst
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Understanding virtual burbs You can
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Figure 13-5. Client Address Pools A
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Figure 13-6. Client Address Pools:
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Adding or modifying a client identi
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Configuring Certificate Management
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Single certificate versus Certifica
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About the Certificate Authorities t
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Figure 13-8. Remote Identities tab
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Figure 13-9. Firewall certificates
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Figure 13-11. SSL Certificates tab
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Figure 13-3. Load Certificate for P
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Figure 13-13. Import Remote Certifi
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Figure 13-14. Export Firewall Certi
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Configuring VPN Security Associatio
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Figure 13-16. Security Associations
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Configuring password information on
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Entering Certificate + Certificate
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Entering Single Certificate informa
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Example VPN Scenarios Example VPN S
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Example VPN Scenarios How it is don
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Example VPN Scenarios All clients
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Example VPN Scenarios c. Click New.
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The assumptions This VPN scenario a
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Example VPN Scenarios 2. In the Adm
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Example VPN Scenarios a. On the Cer
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C HAPTER 14 Configuring the SNMP Ag
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Figure 14-2. Community name within
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SNMP and Sidewinder G2 IPSEC_FAILU
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Figure 14-3. MIBs supported by the
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Defining a community name Setting u
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Communication with systems in an ex
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C HAPTER 15 One-To-Many Clusters Ab
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Overview DNS services must be conf
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Figure 15-2. Sample network configu
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Configuring One-To-Many b. In the P
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Configuring One-To-Many 3. In the R
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About the Modify Primary Address wi
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Understanding the One-To-Many tree
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Understanding the One-To-Many tree
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C HAPTER 16 High Availability About
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HA configuration options HA configu
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You can configure failover HA in on
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Configuring HA — DNS configuratio
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Configuring HA 8. Select the HA con
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Configuring HA Cluster ID—Select
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Joining a Sidewinder G2 to an exist
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Configuring HA 8. Click Next. The S
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Removing the primary from an HA clu
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Figure 16-3. Special HA and Interfa
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About the Common Parameters tab Man
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Changing the multicast address Mana
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Figure 16-2. Local Parameters tab A
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Managing an HA cluster Scheduling a
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Connecting directly to a secondary/
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C HAPTER 17 Alarm Events and Respon
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Table 17-1. Alarm event column desc
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Filter Name Description Configuring
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Configuring alarm events and event
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Figure 17-3. Event Response tab Abo
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Configuring alarm events and event
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Example alarm event scenario Exampl
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Sample Strikeback results Sample St
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Ignoring network probe attempts Ign
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Checking system status Checking sys
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Rlg0 7418 p2 IW+ 0:01.30.u (tcsh) t
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Network interfaces Checking network
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Checking network status ; Dig 2.1
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C HAPTER 18 Monitoring, Auditing, a
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Monitoring Sidewinder G2 status Fig
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Auditing on the Sidewinder G2 Audit
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Figure 18-3. Audit Viewing: View Mo
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Figure 18-4. Snapshot Audit Data wi
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Figure 18-5. Export Audit Data wind
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Figure 18-6. Audit Filtering tab Ab
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Filter Type Description Auditing on
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Example 2: Filtering for services a
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Field Description src_burb Specify
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Logging application messages using
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Generating and viewing reports usin
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Figure 18-7. Firewall Reports windo
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Report Type Description Generating
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Report Type Description Generating
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Using third party reporting tools U
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Using third party reporting tools 3
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A A PPENDIX A Command Line Referenc
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Sidewinder G2 area Commands Area De
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Working with files on the Sidewinde
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Changing a file’s type (chtype) W
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Understanding automatic (cron) jobs
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Understanding automatic (cron) jobs
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A A PPENDIX B Setting Up Network Ti
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Figure B-2. Sidewinder G2 as an NTP
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Figure B-4. NTP conflict: Sidewinde
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Configuring NTP on a Sidewinder G2
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A A PPENDIX C Configuring Dynamic R
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Overview All OSPF routers on a netw
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Figure C-3. Sidewinder G2 within OS
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Figure C-5. OSPF Properties tab Abo
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Figure C-6. OSPF Area tab Setting u
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Authentication Information window F
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Configuring "passive" OSPF Other im
Page 661 and 662: A A PPENDIX D Configuring Dynamic R
Page 663 and 664: RIP processing on the Sidewinder G2
Page 665 and 666: RIP with the Sidewinder G2 using tr
Page 667 and 668: If connection is lost between Route
Page 669 and 670: Figure D-4. RIP with the Sidewinder
Page 671 and 672: RIP with the Sidewinder G2 NOT usin
Page 673 and 674: Configuring RIP on the Sidewinder G
Page 675 and 676: Enabling/ disabling the routed serv
Page 677 and 678: A A PPENDIX E Setting Up SmartFilte
Page 679 and 680: Subscribing to the SmartFilter Cont
Page 681 and 682: Figure E-1. SmartFilter window: Gen
Page 683 and 684: Figure E-2. SmartFilter Advanced ta
Page 685 and 686: Editing the SmartFilter files Table
Page 687 and 688: Table E-2. Category Codes Editing t
Page 689 and 690: A A PPENDIX F Basic Troubleshooting
Page 691 and 692: Restoring access to the Admin Conso
Page 693 and 694: Backing up system files The Sidewin
Page 695 and 696: Performing an incremental backup Ba
Page 697 and 698: Table F-2. Sidewinder G2 restore sc
Page 699 and 700: Restoring system files Performing a
Page 701 and 702: Table F-3. Restore Script Commands
Page 703 and 704: To add hardware, follow these steps
Page 705 and 706: Re-imaging your Sidewinder G2 Syste
Page 707 and 708: If you forget your administrator pa
Page 709 and 710: Interpreting beep patterns Interpre
Page 711: What you hear What it means What yo
Page 715 and 716: Starting the rule monitoring tool (
Page 717 and 718: Troubleshooting High Availability T
Page 719 and 720: Troubleshooting High Availability N
Page 721 and 722: Troubleshooting High Availability N
Page 723 and 724: Why did NTP stop? Troubleshooting N
Page 725 and 726: R EFERENCE Glossary ACE/Server A se
Page 727 and 728: Glossary BSD/OS The operation syste
Page 729 and 730: Glossary event response A response
Page 731 and 732: Glossary internal DNS Manages DNS i
Page 733 and 734: Glossary network-layer proxy Also k
Page 735 and 736: Glossary proxy A software agent tha
Page 737 and 738: Glossary SecureOS The UNIX-based op
Page 739 and 740: URL (universal resource locator) Gl
Page 741 and 742: A R EFERENCE Index A record (addres
Page 743 and 744: ackup_file_list 3-15 complete (full
Page 745 and 746: checking 3-12 creator A-12 current
Page 747 and 748: overview 1-12 IP sniffing 1-2 IP sp
Page 749 and 750: NNTP 8-19 nntp proxy 8-11 non-trans
Page 751 and 752: to operational kernel command 3-4 r
Page 753 and 754: smartfilter.site file E-9 SMTP 11-2
Page 755 and 756: certificate authority 13-27 certifi
Page 758: The Sidewinder G2 ® Security Appli
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