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Importante –Webinar Audio


Citrix Netscaler
Optimização de WebApps
& BC/DR para VDI


                                           O audio para este webinar far-se-a
                                           por VoIP.
12 Novembro 2010                           Basta seleccionar a opção „Use
                                           Mic & Speakers‟ e escutar o
Rui Lopes – System Engineer                Webiinar atraves dos speakers do
                                           PC
Albora Soluciones




O Webinar comecará às 15h00                   Meeting ID: 272-733-112
Citrix NetScaler
Optimização de WebApps
& DR/BC para VDI
NetScaler: Simplify Web Application Delivery


Eliminate application downtime
Increase performance by 5x
Block 100% of web attacks
Improve web server utilization by 60%
Successful Web Application Delivery with NetScaler


      B2C

               Availability      Performance       Offload             Security


B2B
            • World-class L4-   • Caching      • Connection        • Access
              L7 load balancing                  pooling             Gateway SSL
                               • Compression
            • Intelligent                      • Web 2.0 offload     VPN
              service health                                       • Application
              monitoring                       • SSL processing
  P2P                                                                firewall


                                       App Expert Admin
NetScaler Maximizes Application Availability
                                     Site A


      B2C




B2B


                                     Site B

  P2P
AppExpert Rate Controls

• Make sure the right users get
                                                         Partners
 appropriate capacity
• Make sure wrong users get nothing
• Ensure no single user/app overwhelms
                                            Lines of Business


 a shared infrastructure
• Built into core NetScaler policy engine      Customers

• Usable within multiple NetScaler
 modules
                                                       Spiders,
                                                        botnets,
                                                     scrapers, etc.
Accelerated Application Delivery

        CUSTOMERS




                    SSL

        PARTNERS




        EMPLOYEES


                      • Advanced TCP Optimization
                      • Static and Dynamic Caching
                      • Hardware Compression


                           Enhanced User Productivity
NetScaler Speeds User Application Delivery

                      0.22
     SharePoint
                                       2.04

                             1.1
           SAP
                                                           5.22
                                                                                      With NetScaler
                              1.3
    Siebel CRM                                    4                                   Without NetScaler

                                                                  6.41
   Oracle Forms
                                                                                      10.1

                  0                2          4              6           8       10          12




                                                      Response Time in Seconds
Tested, Certified and Recommended by Leading ISVs




                             http://www.hqfastapps.com
Reduced Load on Servers

     CUSTOMERS




                   SSL

     PARTNERS




     EMPLOYEES
                             •   SSL Offload
                             •   TCP Multiplexing and Buffering
                             •   Static and Dynamic Caching
                             •   Hardware Compression


          Supports greater user capacity and more apps with minimal investment
Reduce Servers by 60%



                                      Before NetScaler


                                      After NetScaler




          Fewer Servers. More Apps.
Going Green with NetScaler


           One Way                                                  NetScaler Way
         Point Products
                             Load Balancer/L7 Switch

                            Caching Appliance

                           Application Firewall
                            SSL VPN                        ●   75% lower Power Consumption
                            Global Server Load Balancing   ●   Less Data Center Space
                            Performance Monitoring
                                                           ●   Lower Cooling
                                                           ●   Completely Integrated

        ~1800 Watts                                                  450 Watts

                          Savings $Thousands/Every Year
The Application-layer Threat – Blocked by NetScaler
                                                                                               DATA

                       Cross-Site                                                        • Financial Records
                       Scripting
                             SQL                                                         • Credit Card #s
                           Injection
                     Information                                                         • Social Security #s
                     Leakage
                  HTTP Response                                                          • Customer Records
                  Splitting Path                                                         • Employee Data
  Web App Users               Traversal
                          Internet                                                       • Healthcare Records
                                          Network
                                          Firewalls          Web Apps



Web threat growing
• Attacks against Web-based applications constitute over 60% of total Internet attacks
• 90% of businesses have reported a successful application attack within the last year
• With Web 2.0 the threat is greatly increased

… Also control & compliance demands.
AppExpert Templates
 • Cuts deployment times from days to
   minutes
 • Comprehensively defines applications
 • Consolidates app-specific configuration in
   one place
 • Simplifies ongoing lifecycle management




Download AppExpert templates @ http://community.citrix.com/display/ns/AppExpert+Templates
Citrix NetScaler
Desktop & App Virtualization
Secure Access, Availability and DR/BC for
XenApp/XenDesktop

                         Secure Remote
    Business                                          Local Load
                            Access
    Continuity                                        Balancing
                                                                      Web
                        • Access                                    Interface
 • Failover across                                • Web Interface    Servers
                          Gateway SSL
   XenApp sites                                     servers
                          VPN
 • Global server                                  • XML Broker
                        • Policy-based
   load balancing                                   servers
                          access control                                         App
                                                                      XML        Silo
     Global         Access Gateway Enterprise            Load        Broker
   Server Load                VPN
                           Load Balancer                Balancer     Servers
    Balancer        Global Server Load Balancer
                                                                    Sharepoint
                       Integrated Web Interface                       OWA
                                             Citrix Confidential
                                                                      SAP
                                                                       Etc.
Disaster Recovery Protection
                                                                                 XenApp Farms
                             DMZ



                                                                       Web Interface XML Brokers Application
                       NetScaler Enterprise      NetScaler Standard      Servers                    Silo
                              Pair                      Pair
                                                                                       Site A




                                                                       Web Interface XML Brokers Application
                                                                         Servers                    Silo
                                                                                       Site B
Requirements:                        Citrix Solution:                  Now included feature in GSLB:
• Failover between XenApp            • NetScaler Enterprise Pair x 2   • Run Web Interface
  Farms for DR                       • NetScaler Standard Pair x 2       on NetScaler MPX nCore
• Global load balancing for
  efficient traffic distribution
How NetScaler Adds Value to XenApp/XenDesktop
• Secure Access
  • Integrated Access Gateway, Enterprise for highly scalable, secure access

• High Availability
  • Load balance XenApp/XenDesktop components (e.g. Web Interface, XML Broker, Licensing Server,
    Smart Auditor, Password Manager, EdgeSight, etc.)
  • Smart monitors and alerts of service health

• Disaster Recovery/Business Continuity
  • Global Server Load Balancing (GSLB) provides multi-datacenter HA
  • One URL simplifies end-user access

• Integrated Web Interface on MPX nCore
  • Reduced CaPex/OpEx
  • Simplified Administration
  • Improved Security
Wizard-driven Configuration: Application



ISV Applications

 Citrix XenApp

Citrix XenDesktop
Extending "Pay As You Grow" to the High End
                        100Gbps
                                                                                                      SERVICE PROVIDER/TELCO/CLOUD + INTERNET
                                                                                                      CENTRIC
                                                                                                                                                                            MPX 21500
                        40Gbps
                                                                                                                                                                MPX 19500          50Gb

                                                                                                                                                                     35Gb
                                                                                                                                                  MPX 17500
                        20Gbps                                                                                                                                              Software
                                                              ENTERPRISE
NetScaler Performance




                                                                                                                                                         20Gb               Upgrade
                                                                                                                               MPX 15500

                                                                                                                                           15Gb

                        10Gbps                                                                                MPX 12500

                                                                                                                      10 Gb


                                  SMB (ISV)
                                                                                          MPX 10500                           Software
                                                                        MPX 9500                    6 Gb                      Upgrade
                                                                                   3Gb
                         1Gbps                              MPX 7500
                                                                            Software
                                                                  1Gb
                                                                            Upgrade
                                                  MPX5500

                                                      500Mb




                                   1    2     3                               10                                                100’s Apps / Multi-tenancy
                                                                                         Applications
                                                                                         Citrix Confidential - Do Not Distribute
New Addition to NetScaler Family

          ACCELERATION   AVAILABILITY   SECURITY   OFFLOAD
NetScaler    NetScaler   NetScaler
                 MPX         VPX on      VPX on
               Appliances   XenServer    VMware
Acceleration                             
Availability                             
Security                                 
Offload                                  
                                          ESX 3.5/4.0
NetScaler VPX Packaging
                                                       Maximum NetScaler NetScaler NetScaler
                                                         Tput  Standard Enterprise Platinum

           NetScaler VPX-Express                          1 Mbps        
           NetScaler VPX-10                             10 Mbps                                       
           NetScaler VPX-200                           200 Mbps                                       
           NetScaler VPX-1000                             1 Gbps                                      
           NetScaler VPX-3000                             3 Gbps                                      
  Detail on editions @ http://www.citrix.com/site/resources/dynamic/salesdocs/Citrix_NetScaler_Datasheet.pdf

                              Citrix Confidential - Do Not Distribute
When to Use Which?

    NetScaler Appliances               NetScaler VPX
 • Gig+ performance           • Labs/test environments
 • High volume SSL Offload    • Development environments
 • >100 SSL VPN CCUs          • “Datacenter-in-a-box”
 • FIPS requirements          • CPU-intensive workloads
 • Physical device security   • Frequently moved apps
                              • Fast/remote deployment
Trusted by Leading Enterprises and Web Properties




               7000+   Deployments Worldwide
#1          in 16 of 21 Categories
                                                         •   Overall Satisfaction                       •   Overall Value
                                                         •   Overall Tech Support                       •   Overall Sales & Procurement
                                                         •   Technology                                 •   Pre-Sales Flexibility
                                                                                                        •
BEST in
                                                         •   Ease of Use                                    Pre-Sales Commitment
                                                         •   Return on Investment                       •   Pre-Sales Responsiveness
                                                         •   Investment Protection                      •   Support Responsiveness
                                                         •                                              •
16 Categories                                            •
                                                             Customer Understanding
                                                             Sustained Commitment                       •
                                                                                                            Support Knowledge
                                                                                                            Support Effectiveness




Source: Enterprise Management Associates (EMA), Customer Satisfaction with Application Delivery Controller Vendors

www.citrix.com/customersatisfaction
Try Citrix Netscaler VPX
Citrix Netscaler Intro

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Citrix Netscaler Intro

  • 1. Importante –Webinar Audio Citrix Netscaler Optimização de WebApps & BC/DR para VDI O audio para este webinar far-se-a por VoIP. 12 Novembro 2010 Basta seleccionar a opção „Use Mic & Speakers‟ e escutar o Rui Lopes – System Engineer Webiinar atraves dos speakers do PC Albora Soluciones O Webinar comecará às 15h00 Meeting ID: 272-733-112
  • 2. Citrix NetScaler Optimização de WebApps & DR/BC para VDI
  • 3. NetScaler: Simplify Web Application Delivery Eliminate application downtime Increase performance by 5x Block 100% of web attacks Improve web server utilization by 60%
  • 4. Successful Web Application Delivery with NetScaler B2C Availability Performance Offload Security B2B • World-class L4- • Caching • Connection • Access L7 load balancing pooling Gateway SSL • Compression • Intelligent • Web 2.0 offload VPN service health • Application monitoring • SSL processing P2P firewall App Expert Admin
  • 5. NetScaler Maximizes Application Availability Site A B2C B2B Site B P2P
  • 6. AppExpert Rate Controls • Make sure the right users get Partners appropriate capacity • Make sure wrong users get nothing • Ensure no single user/app overwhelms Lines of Business a shared infrastructure • Built into core NetScaler policy engine Customers • Usable within multiple NetScaler modules Spiders, botnets, scrapers, etc.
  • 7. Accelerated Application Delivery CUSTOMERS SSL PARTNERS EMPLOYEES • Advanced TCP Optimization • Static and Dynamic Caching • Hardware Compression Enhanced User Productivity
  • 8. NetScaler Speeds User Application Delivery 0.22 SharePoint 2.04 1.1 SAP 5.22 With NetScaler 1.3 Siebel CRM 4 Without NetScaler 6.41 Oracle Forms 10.1 0 2 4 6 8 10 12 Response Time in Seconds
  • 9. Tested, Certified and Recommended by Leading ISVs http://www.hqfastapps.com
  • 10. Reduced Load on Servers CUSTOMERS SSL PARTNERS EMPLOYEES • SSL Offload • TCP Multiplexing and Buffering • Static and Dynamic Caching • Hardware Compression Supports greater user capacity and more apps with minimal investment
  • 11. Reduce Servers by 60% Before NetScaler After NetScaler Fewer Servers. More Apps.
  • 12. Going Green with NetScaler One Way NetScaler Way Point Products Load Balancer/L7 Switch Caching Appliance Application Firewall SSL VPN ● 75% lower Power Consumption Global Server Load Balancing ● Less Data Center Space Performance Monitoring ● Lower Cooling ● Completely Integrated ~1800 Watts 450 Watts Savings $Thousands/Every Year
  • 13. The Application-layer Threat – Blocked by NetScaler DATA Cross-Site • Financial Records Scripting SQL • Credit Card #s Injection Information • Social Security #s Leakage HTTP Response • Customer Records Splitting Path • Employee Data Web App Users Traversal Internet • Healthcare Records Network Firewalls Web Apps Web threat growing • Attacks against Web-based applications constitute over 60% of total Internet attacks • 90% of businesses have reported a successful application attack within the last year • With Web 2.0 the threat is greatly increased … Also control & compliance demands.
  • 14. AppExpert Templates • Cuts deployment times from days to minutes • Comprehensively defines applications • Consolidates app-specific configuration in one place • Simplifies ongoing lifecycle management Download AppExpert templates @ http://community.citrix.com/display/ns/AppExpert+Templates
  • 15. Citrix NetScaler Desktop & App Virtualization
  • 16. Secure Access, Availability and DR/BC for XenApp/XenDesktop Secure Remote Business Local Load Access Continuity Balancing Web • Access Interface • Failover across • Web Interface Servers Gateway SSL XenApp sites servers VPN • Global server • XML Broker • Policy-based load balancing servers access control App XML Silo Global Access Gateway Enterprise Load Broker Server Load VPN Load Balancer Balancer Servers Balancer Global Server Load Balancer Sharepoint Integrated Web Interface OWA Citrix Confidential SAP Etc.
  • 17. Disaster Recovery Protection XenApp Farms DMZ Web Interface XML Brokers Application NetScaler Enterprise NetScaler Standard Servers Silo Pair Pair Site A Web Interface XML Brokers Application Servers Silo Site B Requirements: Citrix Solution: Now included feature in GSLB: • Failover between XenApp • NetScaler Enterprise Pair x 2 • Run Web Interface Farms for DR • NetScaler Standard Pair x 2 on NetScaler MPX nCore • Global load balancing for efficient traffic distribution
  • 18. How NetScaler Adds Value to XenApp/XenDesktop • Secure Access • Integrated Access Gateway, Enterprise for highly scalable, secure access • High Availability • Load balance XenApp/XenDesktop components (e.g. Web Interface, XML Broker, Licensing Server, Smart Auditor, Password Manager, EdgeSight, etc.) • Smart monitors and alerts of service health • Disaster Recovery/Business Continuity • Global Server Load Balancing (GSLB) provides multi-datacenter HA • One URL simplifies end-user access • Integrated Web Interface on MPX nCore • Reduced CaPex/OpEx • Simplified Administration • Improved Security
  • 19. Wizard-driven Configuration: Application ISV Applications Citrix XenApp Citrix XenDesktop
  • 20. Extending "Pay As You Grow" to the High End 100Gbps SERVICE PROVIDER/TELCO/CLOUD + INTERNET CENTRIC MPX 21500 40Gbps MPX 19500 50Gb 35Gb MPX 17500 20Gbps Software ENTERPRISE NetScaler Performance 20Gb Upgrade MPX 15500 15Gb 10Gbps MPX 12500 10 Gb SMB (ISV) MPX 10500 Software MPX 9500 6 Gb Upgrade 3Gb 1Gbps MPX 7500 Software 1Gb Upgrade MPX5500 500Mb 1 2 3 10 100’s Apps / Multi-tenancy Applications Citrix Confidential - Do Not Distribute
  • 21. New Addition to NetScaler Family ACCELERATION AVAILABILITY SECURITY OFFLOAD
  • 22. NetScaler NetScaler NetScaler MPX VPX on VPX on Appliances XenServer VMware Acceleration    Availability    Security    Offload    ESX 3.5/4.0
  • 23. NetScaler VPX Packaging Maximum NetScaler NetScaler NetScaler Tput Standard Enterprise Platinum NetScaler VPX-Express 1 Mbps  NetScaler VPX-10 10 Mbps    NetScaler VPX-200 200 Mbps    NetScaler VPX-1000 1 Gbps    NetScaler VPX-3000 3 Gbps    Detail on editions @ http://www.citrix.com/site/resources/dynamic/salesdocs/Citrix_NetScaler_Datasheet.pdf Citrix Confidential - Do Not Distribute
  • 24. When to Use Which? NetScaler Appliances NetScaler VPX • Gig+ performance • Labs/test environments • High volume SSL Offload • Development environments • >100 SSL VPN CCUs • “Datacenter-in-a-box” • FIPS requirements • CPU-intensive workloads • Physical device security • Frequently moved apps • Fast/remote deployment
  • 25. Trusted by Leading Enterprises and Web Properties 7000+ Deployments Worldwide
  • 26. #1 in 16 of 21 Categories • Overall Satisfaction • Overall Value • Overall Tech Support • Overall Sales & Procurement • Technology • Pre-Sales Flexibility • BEST in • Ease of Use Pre-Sales Commitment • Return on Investment • Pre-Sales Responsiveness • Investment Protection • Support Responsiveness • • 16 Categories • Customer Understanding Sustained Commitment • Support Knowledge Support Effectiveness Source: Enterprise Management Associates (EMA), Customer Satisfaction with Application Delivery Controller Vendors www.citrix.com/customersatisfaction

Hinweis der Redaktion

  1. Esta apresentação será focada sobre como o Netscaler pode que pode ser utilizado para optimização de aplicações web e/ou para garantir uma maior disponibilidade de ambientes de virtualização de desktops ou aplicacoes.
  2. NetScaler é tipicamente colocado à frente dos nossos webservers e actua com um reverse proxy permitindo melhorar a disponibilização das aplicações em 4 dimensoes principaisDisponibilidade, Performance, Offload e SegurançaTodas elas sobre a mesma plataforma e proporcionando um excelente investimento.Em cada categoria existem um conjunto de features disponibilizadas pelo NetscalerDisponibilidade : balanceamento de carga laeyer 4 ou layer 7 e monitorização inteligente dos serviços. Performance: Alem da crompressão de trafego HTTP, o caching estatico ou dinamico de conteudosOffload : multiplexação de ligacoes TCP ou offload de SSL reduz o processamento dos servidores de backend e é especialmente importante para aplicacoes web 2.0Segurança aplicacionalEnd-to-end application, com a integração do Access Gateway Enterprise para acesso remoto seguro e um firewall aplicacional para protecção contra ataques de camada aplicacional
  3. Para ilustrar, o Netscaler maximiza a disponibilidade aplicacional atraves de balanceamento de carga inteligente e content switching de layer7. São features que garantem as aplicaoes estão sempre disponiveis para os clientes.A feature de Global server load balancing possibilita um failover e redirecionamento transparente dos utilizadores para um site de backup no caso de desastre, sobrecarga do site principal ou para efectuar uma distribuição dos utilizadores por diferentes sites para garantir uma melhor performance.Por exemplo de distribuição inteligente, uma organização com dois sites. O principal em Portugal e um secundario no Brazil/ na nuvem. Não faz sentido obrigar os utilizadores do Brazil a ligarem-se a portugal quando e se puderem aceder ao mesmo conteudo muito mais proximo. O Netscaler pode redireccionar estes utilizadores para o site mais proximo de modo a que a experiencia de utilização e performance seja a melhor.to a back-up site in the event of a disaster and can be used to intelligently spread user requests across multiple sites during normal business operations.
  4. Dentro da mesma categoria de disponibilidade, o Netscaler permite também implementar politicas sobre o numero de pedidos ou trafego gerado por cada utilizador.Os Rate Controls são um mecanismo mais potente e granular do que a simples implementação de QoS ou shapping a nivel de rede.Não estamos limitados a controlar o trafego somente atraves de ip’s e portos, mas permite-nos ir ao nivel de cada pedido ou URL.Um exemplo práticoUma organização permite aos seus parceiros que republiquem nos seus sites conteúdos que estão colocados no seu website. Um cenario frequente agora que falamos cada vez mais em mashups.No entanto, esta organização está preocupada com o facto de ter demasiados partners a buscar o seu conteudo, sobrecarregando o site principal e degradar o desempenho do seu site.Os AppExpert Rate controls podem ser usados de modo a limitar utilizaçoes abusivas de um utilizador particular, garantindo o desempenho mas mantendo a facilidade de mashup.Existem outras aplicações, como limitação da largura de banda consumida, numero de ligações para uma determinada aplicação. Enfim, este tipo de politica é bastante granular.
  5. O segundo pilar envolve a melhoria da performance para o end-user.NetScaler contem um conjunto alargado de tecnicas de aceleração aplicacional, reduzindo os tempos de resposta independentemente da localização do utilizador.Três exemplos:Tecnologias de optimização TCP como client keep-alive, fast ramp, windows scaling eacknowledgement selectivos de modo a melhorar a performance do protocolo TCP,Caching que permite a disponibilização de conteudo cujo acesso seja mais frequente, seja dinamico ou estatico, a partir da memoria do Netscaler.Esta feature, veremos mais à frente, tem tambem a vantagem de fazer o offload dos servidores de backend.AppCompress que comprime os dados transmitidos atraves HTTP de modo a garantir menos tráfego na rede e uma transmissão mais rápida.Todas estas features permitem uma melhor experiencia de utilização e, consequentemente uma melhor produtividade.
  6. A terceira grande vantagem da utilização do Netscaler envolve a capacidae de fazer o offload da carga dos servidores web.Se analisarmos bem, o que um webserver deve fazer é gerar conteudo. Se tem que gastar recursos – leia-se ciclos de cpu - a desempenhar outras tarefas como comprimir trafego, gerir sessoes TCP e encriptar trafego então vamos precisar de uma pool muito maior de maquinas.Como entra o Netscaler nesta equação e economizar em termos de servidor?Pois bem, passar estas tarefas secundarias e intensivas em termos de CPU para o Netscaler. E Não se preocupem, foi desenhado para aguentar a carga…Estas tarefas incluem: : encriptação/ desemcriptação SSL de chaves ate 4096 bits. Esta é uma função que só por si pode “arrear” com um servidor que não tenha interfaces com hardware especifico para esta função (e estas NIC são caras!!). Também o numero de certificados SSL é menor (passa a ser só um instalado no Netscaler) e a sua gestao muito mais simplificada. multiplexing de ligações TCP permite consolidar um numero elevado de pedidos de cliente para um numero substancialmente inferior de ligacoes persistentes entre o Netscaler e os webservers, de modo a que estes não tenham que gastar ciclos na gestão nos set-up’s e tear-down das sessoes TCP. Outro “resource hog”, para utilizar alguma giria…Com o TCP Buffering, o Netscaler guarda em buffer as respostas dos servidores, liberta-o para processar outro pedido distincto e posteriomente entrega ao cliente na sua velocidade. a maneira simples de ver a vantagem é imaginando um cliente a ligar-se a um servidor atraves de um dial-up – ja não se usa, mas para o efeito de demosntração, sem passar pelo Netscaler.O webserver recebe o pedido do utilizador, comprende o pedido e serve a resposta. A questão é que esta resposta vai atraves de uma ligação dial-up e enquanto o servidor não completar de transmitir a sua resposta ao cliente – o que pode demorar – não processa outro pedido.Como o netscaler o servidor responde rapidamente ao Netscaler – na pratica esta a funcionar como proxy entre os clientes e os servidores, o servidor fica liberto para responder ao proximo pedido e o Netscaler logo se encarregará de comprimir os dados e falar com o cliente ao seu ritmo. e como mencionado previmante o caching e a compressão permitem que os conteudos sejam disponibilizados a partir do Netscaler sem que o webserver receba o pedido. E menos pedidos é equivalente a menos carga. quer isto dizer que para o mesmo numero de utilizadores, o Netscaler pode reduzir de forma drastica as necessidades em termos de servidores.
  7. Mas não é só ao nivel dos servidores que podemos poupar em termos de custos de infrastura.claro que podemos fazer tudo o que falamos com soluçoes pontuais. Adicionar um modulo para gestao de trafego local, outro para gerir o trafego global, mais um como servidor de cache, uma firewall aplicacional, o concentrador SSL e já temos um belo rack cheio e um consumo energetico consideravel.Com oNetScaler podemos cortar a energia/cooling até 75%. Não sei ao certo quanto custo o m2 de datacenter, mas certamente voces saberão que não é barato.
  8. Com tantasfuncionalidades,opções e a propriacomplexidade das aplicacoes, poderáparecer-vos agora que a implementação e gestãoseráumatarefaingrata.Simera moroso.Maspartir da versão 9, com osAppExpert Templates estastarefasforamdramaticamentesimplificadas.Um template não é mais do queumaencapsulação de um conjunto de politicas e configuraçoes de cadacomponenteparaquepossamosfazer a optimização de umaaplicaçãoespecifica.Estes templates sãodesenvolividospela Citrix, pelacomunidadeouporqualqueradministradorquepodecustomizaroudesenvolverosseusproprios templatesOsmesmopodemserimportados, exportadostornandofacil a partilha e normalização de configurações entre difernetessistemas.Porexemplo, voltandoaoexemplo dos dois datacenter distribuidosem Portugal e no Brazil, possocriar o meu template especificopara a minha app, enviar o ficheiropara o administradorqueestá no Brazil e garantirumanormalizaçãoemtermos de configuraçãosobreosdoissistemas..A implmentaçãopassou de diasparaminutos. E podemosvê-lo online com um exemplo.[DEMO 1 : Netscaler & Sharepoint]Importar o app expert sharepointDefinir end pointsMostrar network visualizer
  9. Até agora temos visto como o Netscaler nos pode ajudar com aplicações web, no entanto, e como temos capacidade de gestao de carga e monitorização inteligente, vejamos como é que podemos integrar o Netscaler numa infrastrutura de virtualização de desktops ou aplicacoes com xendesktop.
  10. Uma infrasturura de virtualização de desktops ou aplicacoes é tipicamente composta por webinterfaces que fazem a autenticação dos utilizadores, os brokers de XML que cuidam de gerir as ligacoes entre os clientes e as apps ou desktops.Tipicamente existem multiplas instancias de cada um destes componentes. E para um utilização eficaz dos mesmos podemos usar um balanceador de carga para gerir a carga entre estas instancias para garantir a alta disponibilide, redundancia e capacidade de escala da farm.Como os nosso utilizadores são remotos, ha que encriptar o trafego e aplicar regras de controlo de acesso, ou seja precisamos de um concentrador VPN.E para garantir o failover entre sites, necessitaremos de um Global Server Load balancer.Ora com o Netscaler podemos fazer tudo isto na mesma plataforma e ainda efectuar a optimização das nossas aplicacoes web como o sharepoint, o outlook web access, SAP, o que seja…E ainda integrar o web interface na propria apliance netscaler, se tal for desejavel.
  11. E uma vez mais, a implementação está deveras simplificada.Atraves de wizards, podemos executar as diferentes configurações em poucos passos. Podemos seguir os passos de um dos wizards disponiveis.[DEMO 2] wizards xendesktop LB
  12. Entrentanto a Citrix anunciou o NetScaler VPX - virtual appliance
  13. NetScalerVPX disponibiliza o mesmo tipo de funcionalidade que estão disponiveis nas appliances.Tanto para XenServer como para VMWare ESX 4.0 Estão disponiveis Aceleração aplicacionalBalanceamento de carga e gestao de trafego Segurança, incluindo o Access gateway e a Firewall AplicacionalServer offload
  14. Então usar uma apliance fisica e quando usar uma virtual apliance? Nesta tabela podemos ver algumas orientações. Apliances fisicassão a escolha ideal para situaçoes onde é necessario um alto throughput, SSL offload – as apliances tem hardware dedicado para esta função. E onde existe uma politica explicita para utilizar equipamentos de segurança fisicos. Por outro lado, o VPX é perfeito para ambientes não produtivos, testes e desenvolvimento, situaçoes em que se pretende ter toda a infrastrutura o mais virtualizada possivel – por exemplo para correr o netsscaler vpx sobre os mesmos servidores Xenserver que servem a infrastrutura de virtualização de desktops. (embora, confesso que acho a ideia do “datacenter in a box” terrivelmente sexy… estou la perto.), ambientes on necessitemos de rapidas mudanças por exemplo para modelo de multi-tenancy de um cloud provider.
  15. Na proxima sexta-feira às 10h00 vamos falar sobre Branch Repeaters e optimização de ligacoes WAN.Estejam atentos ao mail.
  16. Edge Tier – amortizes cost across departmentsScale to 20 Gbps and beyondConsolidate edge NetworkingFlex Tier – affordable & dept-specificTraffic and policy isolation per tenant Application-specific policiesDepartmental control
  17. Greater Deployment FlexibilityOn-demand provisioning of NetScaler based on business needsTighter coupling with applications allowing for greater optimization and tuningEnables “virtual network” upstream in application lifecycle Prevents “deployment failures” downstreamSMB CustomersSingle solution that allows administrators to take applications from POC to full production deployment