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3Com Webcache 1000 (3C16115), Webcache 3000 (3C16116) manual System Time

Models: Webcache 3000 (3C16116) Webcache 1000 (3C16115)

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70CHAPTER 5: SYSTEM TIME

A Warning window appears asking if you want to continue with the system time change. Click Yes to continue and reset the Performance Graphs, or No to cancel the change.

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3Com Webcache 1000 (3C16115), Webcache 3000 (3C16116) manual System Time

Contents

SuperStack Webcache 1000 3C16115 Webcache 3000 3C16116 User GuideEnd of Life Statement UNITED STATES GOVERNMENT LEGENDENVIRONMENTAL STATEMENT Regulated Materials StatementI GETTING STARTED CONTENTS2 INSTALLING THE WEBCACHE ABOUT THIS GUIDE4 MANAGING THE WEBCACHE II WEBCACHE FEATURES3 CONFIGURING WEB BROWSERS SECURITY 7 CONTROLLING AND MONITORING WEB ACCESSSYSTEM TIME 8 SYSTEM EVENTS9 PERFORMANCE MONITORING 10 SYSTEM DIAGNOSTICS11 SOFTWARE UPGRADE AND INSTALLATION What are System Diagnostics?III COMMAND LINE INTERFACE 12 COMMAND LINE INTERFACESAFETY INFORMATION PROBLEM SOLVINGPROBLEM SOLVING B CABLE SPECIFICATIONS AND PIN-OUTSGNU GENERAL PUBLIC LICENSE VERSION 2, JUNE REGULATORY NOTICES GLOSSARY INDEX 3COM END USER SOFTWARE LICENSE AGREEMENTReturning Products for Repair Page ABOUT THIS GUIDE Conventions Text ConventionsComments RelatedDocumentation Webcache 1000/3000 Online HelpRegistration Productsite Chapter 1 Introducing the Webcache Chapter 2 Installing the Webcache GETTING STARTEDChapter 3 Configuring Web Browsers Page Webcache? What is theINTRODUCING THE WEBCACHE Reduced Network Traffic3Com Network Controlled Web AccessThe Webcache and SupervisorLED Behavior View DetailWebcache - Front Figure 1 Webcache - Front View Webcache - Front View DetailView Detail The Webcache is powered-up but is not caching - a failure hasThe Webcache is not powered-up. This may indicate a power Webcache - Rear Figure 2 Webcache - Rear ViewLEDs 22 CHAPTER 1 INTRODUCING THE WEBCACHE IP Address Subnet Mask Default Router Domain Name System DNS Server 24 CHAPTER 1 INTRODUCING THE WEBCACHE INSTALLING THE WEBCACHE Choosing a Suitable Package ContentsSite Webcachemounts CAUTION Disconnect all cables from the Webcache before continuing28 CHAPTER 2 INSTALLING THE WEBCACHE Figure 5 Fitting a Rack-Mounting Bracket to the WebcacheFigure 6 Fitting a Rack-Mounting Rail to the Rear of the Rack b Tighten the screws with a suitable screwdriver 30 CHAPTER 2 INSTALLING THE WEBCACHE5 Attach the rack-mounting rail to the front of the rack. To do this 6 Repeat step 4 and step 5 for the other side of the rackSequence The Power-upPowering-up the WebcacheTable 7 Problems Indicated by LEDs Table 6 Power/Self test LED behaviorSuggested Solution Deploying the Webcache in Your Network Proxy Cache34 CHAPTER 2 INSTALLING THE WEBCACHE Transparent Cache Figure 10 Transparent Cache Deploymentas a Proxy Forwarder Figure 11 below Setting Up the Webcache for Management Example Setting Up Over the Test Network Setting Up Using a Cross-over Cable192.168.1.253 is the default IP address of the Webcache Accessing the Web InterfaceNetscape Navigator version 6 is not supported by the Webcache Figure 14 User name and password screen Interface Problems” on pageSetting Up Over the Test Network Figure 15 Setting Up Over the Test NetworkSetting Up Through the Console Port Accessing the Command Line Interface completing the Getting Started wizard before you introduce the Wizard SettingsGetting Started of the Webcache fit into those of your networkLive Network Connecting theWebcache to the CablesConcepts ConfigurationNetwork IP AddressesThe first part identifies the subnet number Host Name Domain Name Manual CONFIGURING WEB BROWSERS4 Click LAN Settings 5 Tick Use a proxy server explicitly direct its Web requests to the WebcacheProxy Auto 4 Select Manual Proxy ConfigurationFile Scripts 1 Log in to the Web interface 2 Click Device View on the Toolbar Use a backup Webcache if the first one failsBypass the Webcache for plain host names names which do not contain dots, commonly used for Intranet sites e.g4 Select Automatic Proxy Configuration 4 Click LAN Settings 5 Tick Use automatic configuration script52 CHAPTER 3 CONFIGURING WEB BROWSERS Web Proxy first tries to connect to the server. The delay is caused by the Webwithout delays caused by WPAD Auto-DiscoveryWeb Proxy Click LAN SettingsTick Automatically detect settings Auto-DiscoveryWEBCACHE FEATURES Page Management MANAGING THE WEBCACHESoftware Interfaces Logging in as a Default UserThe admin user name is case-sensitive Interface192.168.1.253 is the default IP address of the Webcache Accessing the Web InterfaceThe Banner Understanding the Figure 18 The Web Interface Web InterfaceThe Banner The ToolbarThe Device View The ToolbarThe Summary View The Help ViewLAN Port Hotspot Device MimicConsole Port Hotspot Unit HotspotWeb Client Blocking Web Site Blocking Save Configuration Notepad Device SummarySymbolBehavior 64 CHAPTER 4 MANAGING THE WEBCACHEwindow. It contains information about the managed Webcache The InformationArea If the Summary View is currently selected, a table is displayed which66 CHAPTER 4 MANAGING THE WEBCACHE SYSTEM TIME Choosing a Network TimeProtocol? Protocol ServerProtocol Configuring theConfiguration command in the Web interface System Time70 CHAPTER 5 SYSTEM TIME CAUTION To prevent unauthorized access and configuration of the Passwords?Setting Passwords 6 SECURITYPassword Recovery What is PasswordRecovery? password is automatically set to the default for the admin userPassword Recovery Performing74 CHAPTER 6 SECURITY WEB ACCESS CONTROLLING AND MONITORINGDomain Name Rules 4 Check Enable Web Site BlockingSite Blocking Example2 Select System - Caching - Customize Response in the Navigation Tree 78 CHAPTER 7 CONTROLLING AND MONITORING WEB ACCESS Client BlockingExample see “Proxy Auto Configuration PAC File Scripts” on page What is AccessBlocking to control access to the Internet, you should ensure that Go on the standard Squid access log format and can be analyzed usingLogging 3 Select System - Caching - View Access Log in the Navigation Tree Access LogsAnalyzing the 82 CHAPTER 7 CONTROLLING AND MONITORING WEB ACCESS SYSTEM EVENTS NotificationA software upgrade has succeeded A software upgrade has failed 4 Check Enable Email Notifcation of System EventsA new software upgrade is available The Webcache has failed its Power On Self TestSNMP Traps Traps The community string of the network management station is set toPERFORMANCE MONITORING What isPerformance monitoring is always enabled you cannot turn it off Monitoring?Hit and Miss Rate % Bandwidth Saving %Request Rate sec-1 Throughput Kbits/sec SystemHit and Miss Latencies msec CPU Load %New TCP Connection sec Disk Activity secNetwork Packets sec DNS Lookups secWhat are System SYSTEM DIAGNOSTICSDiagnostics? Pinging OtherYou can interrupt a PING request at any time by clicking Stop Tracing IPAddresses Performing a TraceYou can interrupt a trace route request at any time by clicking Stop System LogSystem Log 94 CHAPTER 10 SYSTEM DIAGNOSTICS Special.aspPage 96 CHAPTER 10 SYSTEM DIAGNOSTICS INSTALLATION SOFTWARE UPGRADE ANDUpgrades 2 Select System Control Upgrade Settings in the Navigation TreePerforming a Software Upgrade Performing an Automatically Detected Software UpgradeUpgrade Later View Upgrade Version Release NotesUpgrade Now Discard UpgradePerforming a Manual Software Upgrade Performing a Software UpgradeInstallation What is a SoftwareInstallation? CAUTION Unlike a software upgrade, all of the Webcache’sSaving and ConfigurationsRestoring 104 CHAPTER 11 SOFTWARE UPGRADE AND INSTALLATION Examplematching configuration file to restore the settings Configurationearlier software version via a software installation, you can use a Saving a5 Click Restore. The restore process begins 106 CHAPTER 11 SOFTWARE UPGRADE AND INSTALLATIONCOMMAND LINE INTERFACE Chapter 12 Command Line InterfacePage You must use a VT52 or VT100/ANSI compatible terminal emulator Accessing the Command Line InterfaceCOMMAND LINE INTERFACE console port Accessing theCommand Line Console PortCommand Line Interface Logging In To the Command Line InterfaceProtocol menu GettingStarted commandLogout command Security menuTo enter multiple commands Commands are not case-sensitiveTo enter a simple command To enter commands that require valuesTo display sub-menus the CommandsA Quick Guide to To display parent menusEnter system name The Getting Started command allows you to quickly configure or viewGetting Started Enter system contactEnter new password The date and time are set as soon as you press ReturnOld password ExampleExiting the Command LineAfter the exit, the first key that you press returns you to the login Displaying and Changing IP-related Information118 CHAPTER 12 COMMAND LINE INTERFACE Resetting IP Information to Factory Default Settings Displaying and Changing IP-related InformationInformation 120 CHAPTER 12 COMMAND LINE INTERFACEno password Changing the AdminPassword Displaying andEnter new value enable,disable enable Displaying and Changing Webcache Information and FunctionsThe Password Recovery feature is enabled Do you wish to continue yes,no noWhat Happens During an Initialization? What Happens During a Reboot?Webcache is initializing, you cannot communicate with it Specifying a Webcache NameSystem Name LocationSoftware Version Time Since ResetContact Hardware VersionPROBLEM SOLVING Chapter 13 Problem SolvingPage Accessing the Webcache via the Console Line PROBLEM SOLVINGThe terminal or terminal emulator can no longer access the Accessing the Webcache via TelnetInterface Problems You cannot access the Webcache using TelnetYou cannot access the Web interface The Web interface responds slowly to commandsThe Proxy Auto Configuration PAC file is ignored by the Web browser The System Time does not update in the Web interfaceThe Webcache fails to power-up Solving CommandProblems The Command Line Interface responds slowly to commandsNo Web sites can be accessed using the Webcache PerformanceCheck ProblemsSolving Webcache The performance of the Webcache is poor Local domain sites cannot be accessed using the Webcache as a proxy Solving Webcache Performance Problems136 CHAPTER 13 PROBLEM SOLVING Appendix B Cable Specifications and Pin-outs APPENDICES AND INDEXAppendix A Safety Information Appendix C Technical Specifications Appendix D Technical SupportPage SAFETY INFORMATION This must be approved for the country where it is used Important SafetyPower Cord Set InformationFrance and Peru only U.K. Only†Impédance à la terre Vous devez mettre l’appareil à la terre à la masse ce groupe Consignes importantes de sécuritéCordon électrique Il doit être agréé dans le pays dutilisationConsignes importantes de sécurité Wichtige Sicherheitsinformat ionen NetzsteckerBezeichnung Neutral tragen †Impédance à la terre Wichtige Sicherheitsinformationen146 APPENDIX A SAFETY INFORMATION Category CABLE SPECIFICATIONS ANDPIN -OUTS CategoryNull-Modem Cable Pin-outsPC-AT Serial Cable Pin Number SignalModem Cable 9-pin to RS-232 25-pin Function150 APPENDIX B CABLE SPECIFICATIONS AND PIN-OUTS TECHNICAL SPECIFICATIONS Remote Monitoring MIB RFC 152 APPENDIX C TECHNICAL SPECIFICATIONSSNMP protocol RFC MIB-II RFC Interface MIB RFC Telnet RFCOnline Technical ServicesServices World Wide Web SiteHostname ftp.3com.com Password your Internet e-mail address154 APPENDIX D TECHNICAL SUPPORT Europe, Middle East and Support from 3ComCountryTelephone Number CountryTelephone Number AfricaTo obtain an authorization number, call or fax NET 3Com Returning Products for RepairU.S.A. and Canada 1 408 326158 APPENDIX D TECHNICAL SUPPORT GLOSSARY Fast Ethernet EthernetSee MAC address full duplexline speed LAN portlatency MRTG162 GLOSSARY that communicate as if they are on the same physical LAN 164 GLOSSARY INDEX Page Page 168 INDEX Page 170 INDEX IMPORTANT Read Before Using This Product 3COM END USER SOFTWARE LICENSE AGREEMENTGNU GENERAL PUBLIC LICENSE VERSION 2, JUNE You may charge a fee for the physical act of transferring a copy, and you may at your option offer warranty protection in exchange for a fee NO WARRANTY Copyright C 19yy name of author one line to give the programs name and a brief idea of what it doessignature of Ty Coon, 1 April Ty Coon, President of Vice FCC STATEMENT How to Identify and Resolve Radio-TV Interference ProblemsREGULATORY NOTICES INFORMATION TO THE USER