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Blue Coat Systems SGOS Version 5.2.2 manual Clearing the DNS Cache, Clearing the Object Cache

Models: Blue Coat Systems SG Appliance SGOS Version 5.2.2

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To restore system defaults:

Volume 9: Managing the Blue Coat SG Appliance

To restore system defaults:

Note: The keep-consoleand factory-defaultsoptions are not available through the Management Console.

1.Select Maintenance > System and disks > Tasks.

2.From the Tasks field, click Restore the configuration to defaults. If you restore the configuration from the Management Console, most settings are lost because you cannot use the keep-console option.

The Restore Configuration dialog appears.

3.Click OK.

Related CLI Syntax to Restore System Defaults

SGOS# restore-defaults [keep-console]

SGOS# restore-defaults [keep-console] force

SGOS# restore-defaults factory-defaults

Clearing the DNS Cache

You can clear the DNS cache at any time. You might need to do so if you have experienced a problem with your DNS server or if you have changed your DNS configuration.

To clear the DNS cache:

1.Select Maintenance > System and disks > Tasks.

2.In the Tasks field, click Clear next to “the DNS cache.”

3.Click OK to confirm in the Clear system DNS cache dialog that appears.

Related CLI Syntax to Clear the DNS Cache

SGOS# clear-cache dns-cache

Clearing the Object Cache

You can clear the object cache at any time.

When you clear the cache, all objects in the cache are set to expired. The objects are not immediately removed from memory or disk, but a subsequent request for any object requested is retrieved from the source before it is served.

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Blue Coat Systems SGOS Version 5.2.2 manual Clearing the DNS Cache, Clearing the Object Cache, To restore system defaults

Contents

Volume 9: Managing the Blue Coat SG Appliance Blue Coat Systems SG ApplianceSGOS Version Contact Information Blue Coat Systems Inc 420 North Mary AveSunnyvale, CA Contact Information Chapter 1: About Managing the SG ApplianceChapter 2 Monitoring the SG Appliance Chapter 3: Maintaining the SG ApplianceVolume 9: Managing the Blue Coat SG Appliance Chapter 4: DiagnosticsChapter 5: Statistics Appendix A: Glossary Index Volume 9: Managing the Blue Coat SG Appliance Chapter 4: Diagnostics Chapter 5: Statistics Chapter 1 About Managing the SG ApplianceDocument Conventions Chapter 2: Monitoring the SG ApplianceVolume 9: Managing the Blue Coat SG Appliance Using Director to Manage SG Systems “Using Director to Manage SG Systems” on page“Configuring SNMP” on page “Configuring Health Monitoring” on pageRelated CLI Commands for Director Registration Director Registration RequirementsRegistering the SG Appliance with Director To register the appliance with a DirectorTo view the fingerprint of the key Monitoring the System and Disks System SummaryTo delete a key To view the system summary statisticsViewing System Environment Sensors To view the system environment statisticsViewing Disk Status To view disk status or take a disk offlineVolume 9: Managing the Blue Coat SG Appliance Setting Up Event Logging and Notification Configuring Which Events to LogViewing SSL Accelerator Card Information To view SSL accelerator cardsSetting Event Log Size Related CLI Commands to Set the Event Log SizeEnabling Event Notification To set event log sizeTo enable event notifications Syslog Event MonitoringViewing Event Log Configuration and Content Viewing the Event Log ConfigurationTo enable syslog monitoring Related CLI Commands to Enable Syslog MonitoringViewing the Event Log Contents Understanding the Time FilterUnderstanding the Regex and Substring Filters Configuring SNMP To enable and configure SNMPRelated CLI Commands to Enable and Configure SNMP Enabling SNMPConfiguring SNMP Community Strings To set or change community stringsTo set or change community strings Configuring SNMP Traps To enable SNMP trapsRelated CLI Commands for Enabling SNMP Traps Volume 9: Managing the Blue Coat SG ApplianceConfiguring Health Monitoring Health Monitoring RequirementsAbout the Health Monitoring Metric Types About Health MonitoringVolume 9: Managing the Blue Coat SG Appliance Health Monitoring Example About License Expiration MetricsCRITICAL WARRNINGAbout Health Monitoring Notification About the General MetricsAbout the Licensing Metrics Volume 9: Managing the Blue Coat SG ApplianceAbout the Status Metrics Licensing Metrics” onSee Volume 5: Advanced Networking for Changing Threshold and Notification PropertiesVolume 9: Managing the Blue Coat SG Appliance Getting A Quick View of the SG Appliance Health Viewing Health Monitoring Statistics To review the health monitoring statisticsVolume 9: Managing the Blue Coat SG Appliance Troubleshooting SGOS#config show system-resource-metricsVolume 9: Managing the Blue Coat SG Appliance “Restoring System Defaults” on page Chapter 3: Maintaining the SG ApplianceRestarting the SG Appliance Hardware and Software Restart OptionsRestoring System Defaults Restore-DefaultsVolume 9: Managing the Blue Coat SG Appliance Factory-Defaults Keep-ConsoleTo restore system defaults Related CLI Syntax to Restore System DefaultsClearing the DNS Cache Clearing the Object CacheTroubleshooting Tip Clearing the Byte CacheClearing Trend Statistics Upgrading the SG ApplianceThe SG Appliance 5.x Version Upgrade To upgrade the SG applianceVolume 9: Managing the Blue Coat SG Appliance Related CLI Syntax to Upgrade the SGOS Software 4.Click RestartTo view SGOS system replacement options Managing SG Appliance SystemsTo view details for an SGOS system version Troubleshooting TipSetting the Default Boot System Example SessionSGOS> show installed-systems 1.Select Maintenance > Upgrade > SystemsRelated CLI Syntax to Set the Default Boot System Locking and Unlocking SG Appliance SystemsReplacing an SG Appliance System To lock a systemDeleting an SG Appliance System Disk ReinitializationMulti-DiskSG Appliances To delete a systemSingle-DiskSG Appliance Deleting Objects from the SG ApplianceTo delete a single object from the SG appliance To delete multiple objects from the SG applianceChapter 4: Diagnostics Diagnostic Reporting Service Information Sending Service Information Automatically“Diagnostic Reporting Heartbeats” on page “Diagnostic Reporting CPU Monitoring” on pageManaging the Bandwidth for Service Information Related CLI Syntax to Send Service InformationTo manage bandwidth for service information To send service information automaticallyConfigure Service Information Settings To send service informationVolume 9: Managing the Blue Coat SG Appliance Related CLI Syntax to Send Service Information c.Click Ok 5.Click SendCreating and Editing Snapshot Jobs To create a new snapshot jobTo edit an existing snapshot job Volume 9: Managing the Blue Coat SG Appliancea.Target: Enter the object to snapshot Packet Capturing the Job Utility PCAP File Name FormatCommon PCAP Filter Expressions Volume 9: Managing the Blue Coat SG ApplianceConfiguring Packet Capturing Using Filter Expressions in the CLITo enable, stop, and download packet captures Volume 9: Managing the Blue Coat SG Appliance6 7 8 9 a.Capture all matching packets Viewing Current Packet Capture Data Volume 9: Managing the Blue Coat SG ApplianceTo configure core image restart options Core Image Restart OptionsUploading Packet Capture Data To view current packet capture statisticsDiagnostic Reporting Heartbeats Volume 9: Managing the Blue Coat SG ApplianceDiagnostic Reporting CPU Monitoring To configure and view CPU monitoringVolume 9: Managing the Blue Coat SG Appliance “Viewing the Access Log” on page Chapter 5: StatisticsSelecting the Graph Scale “Viewing Traffic Distribution Statistics” on pageViewing Traffic Distribution Statistics Volume 9: Managing the Blue Coat SG ApplianceUnderstanding Chart Data Refreshing the DataAbout Bypassed Bytes About the Default Service Statistics Viewing Bandwidth Usage or GainTo view bandwidth usage or gain statistics Volume 9: Managing the Blue Coat SG ApplianceViewing Traffic History To view client and server byte statisticsSupported Proxy Types and Services Volume 9: Managing the Blue Coat SG ApplianceUnsupported Proxy Types Understanding Chart DataRefreshing the Data Viewing the ADN History Viewing Bandwidth Management StatisticsViewing Protocol Statistics Volume 9: Managing the Blue Coat SG ApplianceCIFS History “Contents Statistics” on page Viewing System StatisticsResources Statistics Viewing CPU UtilizationViewing Concurrent Users To view concurrent usersChapter 5: Statistics Viewing Disk Use Statistics Viewing Memory Use StatisticsTo view disk use statistics To view memory use statisticsTo view data allocation statistics Select Statistics > System > Resources > DataContents Statistics To view the distribution of cache contentsViewing Cached Objects by Size Viewing the Number of Objects Served by SizeEvent Logging Statistics To view the event logFailover Statistics Active Sessions—Viewing Per-ConnectionStatisticsTo view failover statistics Volume 9: Managing the Blue Coat SG ApplianceAnalyzing Proxied Sessions Viewing Proxied SessionsAbout the Proxied Sessions Statistics To view proxied sessionsVolume 9: Managing the Blue Coat SG Appliance Column HeadingDescription ClientChapter 5 Statistics Column HeadingDescription Server BytesVolume 9: Managing the Blue Coat SG Appliance Service Nameobject-by-objectbasis Is not displayed for MAPI and TCP-TunneltrafficUsing the Tool Tips About MMS Streaming ConnectionsViewing Sessions with Multiple Connections HTTPUnderstanding the Tree View Volume 9: Managing the Blue Coat SG ApplianceWhat Is Not Displayed Filtering the DisplayAbout the Byte Totals ADN TunnelsAnalyzing Bypassed Connections Statistics Volume 9: Managing the Blue Coat SG ApplianceViewing Bypassed Connections About the Bypassed Connection StatisticsTo view bypassed connections Volume 9 Managing the Blue Coat SG Appliance Filtering the DisplayThe following filters are available Viewing the Access Log Viewing Health Monitoring StatisticsViewing Health Check Statistics Viewing Advanced StatisticsUsing the CLI show Command to View Statistics Volume 9: Managing the Blue Coat SG ApplianceChapter 5: Statistics resourcesAllocation of system resources snmpVolume 9: Managing the Blue Coat SG Appliance Appendix A: Glossary Volume 9: Managing the Blue Coat SG Appliance authenticate-401attributeAppendix A: Glossary Volume 9: Managing the Blue Coat SG Appliance destination objectsAppendix A: Glossary Volume 9 Managing the Blue Coat SG Appliance health check typeAppendix A: Glossary Volume 9: Managing the Blue Coat SG Appliance Management ConsoleAppendix A: Glossary Volume 9: Managing the Blue Coat SG Appliance parent class bandwidthAppendix A: Glossary Network > Tunneling tabVolume 9: Managing the Blue Coat SG Appliance SG applianceAppendix A: Glossary Volume 9: Managing the Blue Coat SG Appliance Websense log typeIndex Page Page Volume 9: Managing the Blue Coat SG Appliance