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| Date post: | 30-Dec-2015 |
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| Upload: | jody-stone |
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Votre réseauVotre réseau
ClientsClients
The Internet
serveurs Webserveurs Web
Wide Area BandwidthWide Area Bandwidth
GenerationGeneration SpeedSpeed TechnologyTechnology ApplicationApplication
14.414.428.828.8 Modem, SVDModem, SVD Text great,Text great,
Pictures OKPictures OKNarrowbandNarrowband
(Today)(Today)
100-400100-400ISDN, ISDN,
PC cable PC cable modemmodem
Pictures great,Pictures great,Video OKVideo OK
MidbandMidband(1-2 years)(1-2 years)
BroadbandBroadband(2+ years)(2+ years) 1500+1500+ ATMATM Video greatVideo great
(k-baud/sec.)(k-baud/sec.)
Serveurs de données et le WebServeurs de données et le Web MainframeMainframe
DB/2DB/2
SNASNA Server Server
InternetInternetInformationInformation
ServerServer
ReportReportfilefile
<HTML><HTML><HEAD><HEAD>
<A HREF=“http:/starsql.idc?”><A HREF=“http:/starsql.idc?”>Run query</A>Run query</A>
<A HREF=“ftp://[email protected]/reportFile”><A HREF=“ftp://[email protected]/reportFile”>Retrieve Report</A>Retrieve Report</A>
ODBC/ODBC/DRDADRDA
FTP/AFTP
Navigateur WebNavigateur Web
Internet
Web Server FunctionalityWeb Server Functionality
Web browser 1
FilesFiles
Web browser n
Server sideServer sideClient sideClient side
HTTPHTTPHTTPHTTP WebWebserverserverWebWeb
serverserver
Web serverWeb serverWeb serverWeb serverC
GI
CG
I
PerlPerl
Web browserWeb browserclientclient
Web browserWeb browserclientclient
Perl scriptsPerl scripts
SimpleSimpleapplicationsapplications
ProcessProcess ProcessProcess
HTTPHTTPAny EXEcutableAny EXEcutableAny EXEcutableAny EXEcutable
Web Server ExtensibilityWeb Server ExtensibilityCGI (Common Gateway Interface)CGI (Common Gateway Interface)
HTTP And CGI/ISAPIHTTP And CGI/ISAPI
Clien
tC
lient
Win
Inet/lib
raryW
inIn
et/library
Sock
etsS
ockets
Net
wor
k (
IP s
tack
)N
etw
ork
(IP
sta
ck)N
etwork
(IP stack
)N
etwork
(IP stack
)
Soc
ket
sS
ock
ets
CG
I/IS
AP
IC
GI/
ISA
PI
Ser
ver
Ser
ver
ClientClient ServerServer
HTTP “GET”HTTP “GET”
ActiveX ServerActiveX ServerFramework Run timeFramework Run time
VolcanoVolcanoPagePage
ProcessesProcesses
PagePage
Invokes ServerInvokes Server
ControlControl
Ad Ad RotatorRotator
HTTP responseHTTP response
Internet Information Server Components• FTP, Gopher, HTTP (WWW) publishing services
• Internet Explorer for Windows® 3.x, Windows NT™, and Windows 95
• Online product tour, documentation, and samples• Support for industry-standard extension mechanisms:
CGI, ISAPI• Internet Database Connector• Internet Service Manager administration application
Internet Information Server Advanced Features• Virtual directories
• Virtual servers
• Log to File, Log to Database
• Internet Server API
• Internet Database Connector
• Grant/deny client-computer access
• Limit network use
• SSL
Internet Server API (ISAPI) Creating Active Servers• Industry-standard Web server extensions: Active
Servers• High-performance (in-process)• Maintain state between requests• ActiveX™ Server applications (ISAPI)
offer forms processing, gateways, dynamic content
• ActiveX Filters (ISAPI) offer request monitoring, statistics gathering, custom authentication, custom request processing, data translations
Windows NT Integration• Security
– User Manager/user-level access control– File Manager/file and directory access control– Challenge/response authentication protocol
• Monitoring– Performance Monitor– SNMP– Event Viewer
• Publish content on network “shares”
Internet Information Server Internet Information Server ArchitectureArchitecture
ATQATQ File openFile open
cachecache
InternetInternetService ManagerService Manager
RPCRPCWindows SocketsWindows Sockets
CGICGI
ISAPIISAPIMicrosoft SQL Server,Microsoft SQL Server,
Microsoft Access, Microsoft Access, ORACLE...ORACLE...
Internet serverInternet server
GopherGopherserviceservice
FTPFTPserviceservice
HTTPHTTPserviceservice
FiltersFilters
TransmitFileTransmitFile
TCP/IPTCP/IP
wininet.dllwininet.dll
ClientClientapplicationapplication
Batch, Perl,Batch, Perl,etc. scriptsetc. scripts
ClientClientapplicationapplication
IDCIDC
Resources• SSL Certificates:
http://www.verisign.com/Microsoft/index.html
• Perl 5 and ISAPI Perl: http://www.perl.hip.com
• ISAPI specifications: http://www.microsoft.com/intdev/inttech/isapi.htm
• Internet Information Server info: http://www.microsoft.com/infoserv
• Windows NT Resource Center: http://www.bhs.com
CGI Application (1 Of 2)CGI Application (1 Of 2)
WebWebserverserverWebWeb
serverserver
URLURLhttp://webserver/scripts/my_app.exe?parametershttp://webserver/scripts/my_app.exe?parameters
URLURLhttp://webserver/scripts/my_app.exe?parametershttp://webserver/scripts/my_app.exe?parameters
my_app.exemy_app.exe(CGI application)(CGI application)
my_app.exemy_app.exe(CGI application)(CGI application)
Possible use of anyPossible use of anyrunning service; e.g.,running service; e.g.,
Microsoft SQL ServerMicrosoft SQL Serveron Windows NTon Windows NT
(on the same or any(on the same or anynetworked machine)networked machine)
Possible use of anyPossible use of anyrunning service; e.g.,running service; e.g.,
Microsoft SQL ServerMicrosoft SQL Serveron Windows NTon Windows NT
(on the same or any(on the same or anynetworked machine)networked machine)
Other processOther process
LaunchedLaunchedprocessprocess
LaunchedLaunchedprocessprocess
Do whateverDo whateverserver workserver workmy_app doesmy_app does
Do whateverDo whateverserver workserver workmy_app doesmy_app does
CGI Application (2 Of 2)CGI Application (2 Of 2)
Why:Why: Designed to extend servers Designed to extend servers beyond simple HTML file servingbeyond simple HTML file serving
What:What: Uniform way to extend servers. Uniform way to extend servers. CGI applications take input from command CGI applications take input from command line, stdin, and environment variables, andline, stdin, and environment variables, andrespond via stdoutrespond via stdout
Why not?Why not? One new process per request One new process per request High overheadHigh overhead Scales poorlyScales poorly No provision for state retentionNo provision for state retention
Reference: Reference: http://hoohoo.ncsa.uiuc.edu/cgi/http://hoohoo.ncsa.uiuc.edu/cgi/
Filter APIsFilter APIsFilter APIsFilter APIs
Application APIs
Windows NT Server,Internet Information ServerC
GI
CG
I
perl.dllperl.dllperl.dllperl.dll
WebWebbrowserbrowser
WebWebbrowserbrowser
Scripts,e.g., Perl
SimpleSimpleapplicationapplication
SimpleSimpleapplicationapplication
ActiveX Serverfilters
ActiveX Server
applications
PerlPerlscriptsscriptsPerlPerl
scriptsscriptsInternetInternetdatabasedatabaseconnectorconnector
(IDC)(IDC)
InternetInternetdatabasedatabaseconnectorconnector
(IDC)(IDC)
ActiveX Server: ISAPIActiveX Server: ISAPI
ISAPI DLLISAPI DLL
Windows NT Server,Windows NT Server,Internet Information ServerInternet Information Server
Windows NT Server,Windows NT Server,Internet Information ServerInternet Information Server
URLURLhttp:// webserver/scripts/ my_app.dll?parametershttp:// webserver/scripts/ my_app.dll?parameters
URLURLhttp:// webserver/scripts/ my_app.dll?parametershttp:// webserver/scripts/ my_app.dll?parameters
my_app.dllmy_app.dll(active server (active server application)application)
my_app.dllmy_app.dll(active server (active server application)application)
Possible use of anyPossible use of anyrunning service;running service;
e.g., SQL Server one.g., SQL Server onWindows NTWindows NT
(on the same or any(on the same or anynetworked machine)networked machine)
Possible use of anyPossible use of anyrunning service;running service;
e.g., SQL Server one.g., SQL Server onWindows NTWindows NT
(on the same or any(on the same or anynetworked machine)networked machine)
Other processOther process
Do whateverDo whateverserver workserver workmy_app doesmy_app does
Do whateverDo whateverserver workserver workmy_app doesmy_app does
Throughput megabits/secondThroughput megabits/second(100% API)(100% API)
MegabitsMegabitsper secondper second
00112233445566
Connections/secondConnections/second(100% API)(100% API)
00
2020
4040
6060
8080
100100
ConnectionsConnectionsper secondper second
Performance: ISAPI Versus CGIPerformance: ISAPI Versus CGI
WebStone 1.1: WebStone 1.1: Internet Information ServerInternet Information Server
ISAPI versus CGIISAPI versus CGI
ISAPIISAPICGICGI
Custom ISAPICustom ISAPIExtensionsExtensions
Custom ISAPICustom ISAPIExtensionsExtensions
ActiveX server framework run timeActiveX server framework run timeProcess isolation, user tracking, application state managementProcess isolation, user tracking, application state management
ActiveX ActiveX server server objectsobjects
ActiveX ActiveX server server objectsobjects
ActiveX server ActiveX server scriptingscripting
ActiveX server ActiveX server scriptingscripting
Internet Internet Database Database
ConnectorConnector
Internet Internet Database Database
ConnectorConnector
Microsoft Microsoft ExchangeExchange
Web ConnectorWeb Connector
Microsoft Microsoft ExchangeExchange
Web ConnectorWeb Connector
Windows NT Server, Internet Information ServerWindows NT Server, Internet Information ServerTransport, security, and managementTransport, security, and management
Windows NT Server, Internet Information ServerWindows NT Server, Internet Information ServerTransport, security, and managementTransport, security, and management
Static contentStatic content(e.g., HTML)(e.g., HTML)Static contentStatic content(e.g., HTML)(e.g., HTML)
Microsoft Microsoft ExchangeExchangeMicrosoft Microsoft ExchangeExchange
Custom applications, Custom applications, legacy systems, etc.legacy systems, etc.
Custom applications, Custom applications, legacy systems, etc.legacy systems, etc.
Active content Active content (e.g., databases)(e.g., databases)Active content Active content
(e.g., databases)(e.g., databases)
ISAPIISAPIISAPIISAPI
““Viper” - transaction processing, coordination, scalabilityViper” - transaction processing, coordination, scalability
The ActiveX ServerThe ActiveX Server
Filter APIs
InternetInternetInformationInformation
ServerServer
InternetInternetInformationInformation
ServerServer
InternetInternetdatabasedatabaseconnectorconnector
InternetInternetdatabasedatabaseconnectorconnector
Application APIsApplication APIs
CG
IC
GI
perl.dllperl.dllperl.dllperl.dll
WebWebbrowserbrowser
WebWebbrowserbrowser
Perl scriptsPerl scriptsPerl scriptsPerl scripts
SimpleSimpleapplicationsapplications
SimpleSimpleapplicationsapplications
ActiveX ServerActiveX Serverfiltersfilters
ActiveX ServerActiveX Serverfiltersfilters
ActiveX ActiveX Server Server
applicationsapplications
ActiveX ActiveX Server Server
applicationsapplications
ActiveX Server ActiveX Server Programming: ISAPIProgramming: ISAPI
Microsoft Exchange Microsoft Exchange Web ConnectorWeb Connector
Web connectorWeb connector
http://www.company.com/scripts/webex.dll/InternetInternetInternetInternet
Microsoft ExchangeServer
MAPIMAPI
ISAPIISAPI
Internet Information ServerInternet Information Server
Web browserWeb browser
San FranciscoSan Francisco New YorkNew York
PublicnetworkSecure pipeSecure pipe
Application Session SecurityApplication Session SecurityWeb clientWeb client
WebWebserverserver
Secure transportSecure transport Connection/session-orientedConnection/session-oriented Application-independent - Web, FTP, TelnetApplication-independent - Web, FTP, Telnet
??Questions Questions
