Citrix Cloud Connectors: How they work and how to get the most from them
FollowConnectors have long fulfilled a key role in providing a simple, secure way to connect on-premises resources to the Citrix Cloud console. They unlock the advantages of cloud management by bridging on-prem and cloud deployments, without requiring complex networking or …
The post Citrix Cloud Connectors: How they work and how to get the most from them first appeared on Citrix Blogs.
Citrix Cloud Connectors: How they work and how to get the most from them
Connectors have long fulfilled a key role in providing a simple, secure way to connect on-premises resources to the Citrix Cloud console. They unlock the advantages of cloud management by bridging on-prem and cloud deployments, without requiring complex networking or …
The post Citrix Cloud Connectors: How they work and how to get the most from them first appeared on Citrix Blogs.
Citrix Cloud Connectors: How they work and how to get the most from them
Connectors have long fulfilled a key role in providing a simple, secure way to connect on-premises resources to the Citrix Cloud console. They unlock the advantages of cloud management by bridging on-prem and cloud deployments, without requiring complex networking or …
The post Citrix Cloud Connectors: How they work and how to get the most from them first appeared on Citrix Blogs.
Citrix Cloud Connectors: How they work and how to get the most from them
Connectors have long fulfilled a key role in providing a simple, secure way to connect on-premises resources to the Citrix Cloud console. They unlock the advantages of cloud management by bridging on-prem and cloud deployments, without requiring complex networking or …
The post Citrix Cloud Connectors: How they work and how to get the most from them first appeared on Citrix Blogs.
AWS環境でのNetScalerを考える
システムの耐障害性を検討する上でネットワーク機器の高可用性は必要不可欠です。このブログでは、AWS環境におけるNetScalerの冗長性を考えます。
始めにオンプレミス環境のNetScalerでは、2台のNetScalerでプライマリ/セカンダリの関係を確立するHigh Availability(以降HA)と、複数台のNetScalerをグルーピングしてトラフィックを捌くCluster、この2つの機能を使用することができます。シンプルにプライマリ/セカンダリで動くHAの方が馴染みあるかと思います。AWS環境においては、NetScalerのClusterがサポートされていません。また、HAも一部制約があり、オンプレミス環境同様に構成することができません。本稿では、AWS環境上でNetScalerの冗長構成を取るにはどのように構成したら良いか説明します。
NetScalerのHAは仮想IPアドレスをプライマリ/セカンダリで共有し、HAフェイルオーバーが発生した際にはGARPを使用することが一般的で、IPとMACアドレスのバインディングの更新を他のネットワークデバイスに通知します。
しかしながらここでまた制限があります。AWS環境ではGARPがサポートされていません。(AWS環境でNetScalerをご利用いただく際の制限はこちらです)
したがって、AWS環境でのNetScalerのHAの考え方はオンプレミス環境での動作の考え方/必要要件とは異なります。AWS環境の機能をうまく利用した別のARPテーブルの更新手段が必要です。
では、HAフェイルオーバー発生時にAWS環境でどのような処理が必要か下図をベースに説明していきます。
例としてAWS環境に構築されたCitrix Virtual Apps and Desktopsへの入り口として、NetScaler(Gateway)が動いています。オンプレミス環境のユーザーからのアクセスがTransit Gatewayを通過しAWSのVPCに到達、NetScaler#1がトラフィックを処理していて、HA切り替わりが発生する前の状態です。
Figure 1
次に、HAフェイルオーバーが発生します。
Figure 2
①NetScaler HAフェイルオーバーが発生
②NetScalerが以下のFQDNをDNSサーバーに名前解決
・ec2.ap-northeast-1.amazonaws.com(東京リージョンの場合)
・iam.amazonaws.com
③NetScalerに付与されたIAM権限をもってNetScalerがAWSコンソール(EC2、IAM)にアクセス
④NetScaler#1を指していた該当のルートをNetScalerが書き換える
Before: 宛先
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Updates to Session Recording service preview and introducing the 2209 current release
Session Recording continues to bring new features and capabilities to both on-prem and cloud. We know that organizations are faced with managing constantly growing session recording files that take up large amounts of storage. Intelligently storing and deleting files as …
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6 essential steps for planning a hybrid cloud migration
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Are you considering moving some of your on-premises workloads to the cloud? Many organizations are migrating to hybrid cloud environments. This allows them to enjoy the benefits of the cloud while continuing to leverage existing datacenter investments. Here are some …
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On Premises vs. Cloud: Which is best for your business?
Many organizations are considering the best infrastructure for deploying virtual apps and desktops. The choice is essentially between on-premises and cloud solutions, or a mix of both. Is on premises or cloud better than the other? On-premises virtual desktop infrastructure …
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How a hybrid DaaS strategy can give you the best of both worlds
Organizations everywhere are moving to the cloud to help improve flexibility and agility, reduce costs, streamline operations, and meet the needs of remote workers. But every organization is different in deciding if and when they want to migrate to the …
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Get highly flexible, SaaS-based app delivery and security with Citrix
Last November, Citrix introduced a paradigm-shifting advancement in application delivery with the first intent-based app delivery and security service. Citrix App Delivery and Security Service consists of two SaaS offerings — Self Managed and Citrix Managed. Self Managed …
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