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HP Norton Personal Firewall 2003 manual Appendix Troubleshooting Norton Personal Firewall

Models: Norton Personal Firewall 2003

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Appendix	A	Troubleshooting Norton Personal Firewall
		Troubleshoot Norton Personal Firewall problems	112
		What is wrong with this Web site?	112
		Why can’t I post information online?	113
		Why did an email message I sent never arrive?	113
		Why doesn’t Norton Personal Firewall notify me before
		letting programs access the Internet?	114
		Why can’t I print to a shared computer or connect to a
		computer on my local network?	114
		Why can’t I connect to the Internet via my cable
		modem?	114
		How can a Web site get my browser information?	115
Appendix	B	About the Internet
		How information is transmitted over the Internet	118
		About UDP	120
		About ICMP	120
		About IGMP	120
		How Web information is located on the Internet	120
		Requesting a page	121
		Understanding URLs	121
		How ports identify programs on servers	122
		How computers are identified on the Internet	123
Appendix	C	Understanding Internet risks
		Risks from hackers	125
		The process of a hacker attack	125
		Risks from active content	128
		Risks from inappropriate content and activities	129
		Blocking site and newsgroup categories	129
		Restricting access to programs	129
		Risks to your privacy	129
		Sending private information	129
		Understanding cookies	130
		Blocking cookies	130
		Tracking Internet use	131
		Risks from Trojan horses and viruses	131
		The likelihood of being attacked	132

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HP Norton Personal Firewall 2003 manual Appendix Troubleshooting Norton Personal Firewall

Contents

User’s Guide Norton Personal Firewall User’s Guide Symantec License and Warranty Disclaimer of Damages Contents Chapter Norton Personal Firewall basics Chapter Controlling access to protected computers Chapter Protecting your privacy Appendix Troubleshooting Norton Personal Firewall Contents Responding to emergencies If you think your computer is under attackTo block and investigate an attack Action Description Recover from an emergencyPrevent future problems Prevent future problems What’s new in Norton Personal Firewall About Norton Personal FirewallNorton Personal Firewall features About Norton Personal Firewall Norton Personal Firewall features include System requirements Installing Norton Personal FirewallRequirements Supported email clientsIf you’re using Windows XP Before installationSupported instant messenger clients Prepare your computerInstall Norton Personal Firewall To disable the Windows XP firewallTo install Norton Personal Firewall Install Norton Personal Firewall Click Next Register your software If the opening screen does not appearTo register your software Register your software Register your software Set up Home Networking After installationRestart your computer Use the Security AssistantTo set up Home Networking Set up Program ControlTo set up Program Control Set up Privacy Control To set up Privacy Control Set up Password ProtectionTo protect Norton Personal Firewall options with a password If you have Norton SystemWorks installedTo open Norton Personal Firewall from Norton SystemWorks To open Norton SystemWorks from Norton Personal FirewallIf you need to uninstall Norton Personal Firewall To uninstall Norton Personal FirewallTo uninstall LiveReg and LiveUpdate Access Norton Personal Firewall To access Norton Personal FirewallNorton Personal Firewall basics To use the Norton Personal Firewall system tray menu Access Norton Personal Firewall from the system trayAccess Norton Personal Firewall protection features To change settings for individual featuresWork with Norton Personal Firewall Use the Security Monitor To view the Security MonitorTo view the Security Center Respond to Norton Personal Firewall alerts Select a task with the Security MonitorLearn more with the Alert Assistant Adjust the Alerting Level To adjust the Alerting LevelTo use the Alert Assistant To view or hide Alert Tracker Use Alert TrackerTo review recent Alert Tracker messages Check your computer’s vulnerability to attackTo move Alert Tracker To hide Alert Tracker from the system tray menuTo get more information about an at-risk area Identify the source of communicationsTo trace a connection attempt from Statistics To trace a connection attempt from the Log ViewerStop Internet communication with Block Traffic Customize Norton Personal Firewall About LiveUpdate optionsAbout General options About Firewall optionsPassword-protect options About Web Content optionsAbout Email options Reset options password Temporarily disable Norton Personal FirewallTo reset your Norton Personal Firewall options password To temporarily disable Norton Personal FirewallTo access Help To disable a protection featureFor more information Look up glossary terms Use online HelpReadme file and Release Notes To access window or dialog box HelpWindow and dialog box Help To read the Readme fileTo read the Release Notes To install Adobe Acrobat ReaderAbout Norton Personal Firewall on the Web To access the Symantec Web site in your browserExplore online tutorials To read the User’s Guide from your hard diskTo subscribe to the Symantec Security Response newsletter Subscribe to the Symantec Security Response newsletterAbout program updates Keeping current with LiveUpdateAbout your subscription About protection updatesIf you run LiveUpdate on an internal network When you should updateRequest an update alert To request an update alertObtain updates using LiveUpdate If you can’t use LiveUpdateSet LiveUpdate to Interactive or Express mode To obtain updates from the Symantec Web siteTurn off Express mode To set LiveUpdate to Interactive or Express modeTo turn off Express mode Notify me To disable Automatic LiveUpdate Run LiveUpdate automatically Connect to a network Control how people use your computerEnable file and printer sharing To enable file and printer sharingOrganize computers into network zones To open the Home Network Wizard from the Security Monitor To open the Home Network Wizard from the Security CenterIdentify computers to Norton Personal Firewall To manually add computers to zonesTo remove computers from zones Find a computer’s IP address To find an IP address with IpconfigSpecify an individual computer To find an IP address with WinipcfgTo specify computers using a network address Specify computers using a network addressSpecify a range of computers If you use DhcpControl how outside users access your network Control how users access the InternetIf you access the Internet via a cable or DSL router If multiple computers share a single Internet connectionPGP If you run a Virtual Private NetworkGuarding against intrusion attempts Intrusion Detection analyzes communications Norton Personal Firewall monitors communicationsVisual Tracking locates attackers Customize firewall protection Change the Security Level sliderTo change the Security Level slider To change individual security settings Change individual security settingsClick Custom Level To reset security settings to defaults Reset security settings to defaultsCustomize firewall rules How firewall rules are processedCreate new firewall rules Enable Automatic Program ControlTo enable Automatic Program Control Scan for Internet-enabled programsTo add a program to Program Control Manually add a program to Program ControlTo change Program Control settings Change Program Control settingsManually add a firewall rule To add a General RuleTo add a Trojan Horse Rule Write a firewall rule To add a Program RuleTo write a firewall rule TCP UDP Select the ports the rule should monitor. Your options are Change an existing firewall ruleTemporarily disable a firewall rule Change the order of firewall rulesRemove a firewall rule Customize Intrusion Detection Reset firewall rules to the default settingsExclude specific network activity from being monitored To remove a firewall ruleTo include attack signatures To enable or disable AutoBlock Enable or disable AutoBlockUnblock computers To unblock computers currently blocked by AutoBlockRestrict a blocked computer Exclude computers from AutoBlockTo exclude specific computers from AutoBlock To restrict a blocked computerIdentify private information to protect Protecting your privacyPrivacy Control and SSL Add private informationTo add private information Modify or remove private information Customize Privacy ControlSet the Privacy Level To modify or remove private informationChange the Private Information setting Adjust individual Privacy Control settingsTo change the Private Information setting To set the Privacy LevelTo change the Cookie Blocking setting Change the Cookie Blocking settingEnable or disable Browser Privacy Disable or enable secure Web connectionsTo enable or disable Browser Privacy Blocking by dimensions Blocking Internet advertisementsHow Ad Blocking works Enable or disable Ad Blocking To enable or disable Ad BlockingBlocking by location To enable or disable Popup Window Blocking Enable or disable Popup Window BlockingTo enable or disable Flash blocking Enable or disable Flash blockingUse the Ad Trashcan To use the Ad TrashcanClick Open the Ad Trashcan. The Ad Trashcan window appears Use text strings to identify ads to block or permitHow to identify Ad Blocking strings Add an Ad Blocking stringTo add an Ad Blocking string To modify or remove an Ad Blocking string Modify or remove an Ad Blocking stringUse text strings to identify ads to block or permit Monitoring Norton Personal Firewall To view the Status & Settings window View the Status & Settings windowView the Statistics window To view the Statistics windowReset information in the Statistics window To reset information in the Statistics windowReview detailed statistics Reset detailed statistics counters To reset countersTo review detailed statistics View Norton Personal Firewall Logs To view the logs View the logsClear the logs Refresh the logsTo change the size of a log Change the size of the logsTo explore the Symantec service and support Web site Troubleshooting Norton Personal FirewallTroubleshoot Norton Personal Firewall problems What is wrong with this Web site?To search the Symantec service and support Web site Why did an email message I sent never arrive? Why can’t I post information online?To make your NetBIOS name visible Why can’t I connect to the Internet via my cable modem?To allow ISP port scans How can a Web site get my browser information?Troubleshoot Norton Personal Firewall problems About the Internet How information is transmitted over the Internet 119 About UDP How Web information is located on the InternetAbout Icmp About IgmpUnderstanding URLs Requesting aHow ports identify programs on servers How ports identify programs on serversWell-known ports How computers are identified on the Internet124 About the Internet Understanding Internet risks Risks from hackersProcess of a hacker attack Information gathering Privilege escalation Initial accessCovering tracks Risks from active contentRestricting access to programs Risks from inappropriate content and activitiesRisks to your privacy Blocking site and newsgroup categoriesBlocking cookies Understanding cookiesGood cookies Bad cookiesTracking Internet use Risks from Trojan horses and virusesLikelihood of being attacked Glossary Domain Download IP Internet Protocol IP address Internet Protocol address Network address Operating system Glossary Web Web site World Wide Web WWW Glossary Customer service Service and support solutionsTechnical support Subscription policySupport for old and dis versions Service and support offices Worldwide service and supportService and support solutions Index Index Index Index Index 150 Index Norton Personal Firewall