Creating an Instance

2. Copy the key data into a file. The file looks like this:

-----BEGIN RSA PRIVATE KEY-----

MIICXQIBAAKBgQCSydmnQ67jP6lNoXdX3noZjQdrMAWNQZ7y5SrEu4wDxplvhYci

dXYBeZVwakDVsU2MLGl/K+wefwefwefwefwefJyKJaogMKn7BperPD6n1wIDAQAB

AoGAdXaJ7uyZKeRDoy6wA0UmF0kSPbMZCR+UTIHNkS/E0/4U+6lhMokmFSHtu

mfDZ1kGGDYhMsdytjDBztljawfawfeawefawfawfawQQDCjEsoRdgkduTy

QpbSGDIa11Jsc+XNDx2fgRinDsxXI/zJYXTKRhSl/LIPHBw/brW8vzxhOlSOrwm7

VvemkkgpAkEAwSeEw394LYZiEVv395ar9MLRVTVLwpo54jC4tsOxQCBlloocK

lYaocpk0yBqqOUSBawfIiDCuLXSdvBo1Xz5ICTM19vgvEp/+kMuECQBzm

nVo8b2Gvyagqt/KEQo8wzH2THghZ1qQ1QRhIeJG2aissEacF6bGB2oZ7Igim5L14

4KR7OeEToyCLC2k+02UCQQCrniSnWKtDVoVqeK/zbB32JhW3Wullv5p5zUEcd

KfEEuzcCUIxtJYTahJ1pvlFkQ8anpuxjSEDp8x/18bq3

-----END RSA PRIVATE KEY-----

3. Save the file.

6.3.3. Creating an Instance

Ensure that you use the same SSH key name that you created.

Note

You cannot create the instance by using the GUI at this time and associate the instance with the newly created SSH keypair.

A sample curl command to create a new instance is:

curl --globoff http://localhost:<port number>/?

command=deployVirtualMachine&zoneId=1&serviceOfferingId=18727021-7556-4110-9322-

d625b52e0813&templateId=e899c18a-

ce13-4bbf-98a9-625c5026e0b5&securitygroupids=ff03f02f-9e3b-48f8-834d-91b822da40c5&account=admin

\&domainid=1&keypair=keypair-doc

Substitute the template, service offering and security group IDs (if you are using the security group feature) that are in your cloud environment.

6.3.4. Logging In Using the SSH Keypair

To test your SSH key generation is successful, check whether you can log in to the cloud setup.

For example, from a Linux OS, run:

ssh -i ~/.ssh/keypair-doc <ip address>

The -i parameter directs the ssh client to use a ssh key found at ~/.ssh/keypair-doc.

6.3.5. Resetting SSH Keys

With the API command resetSSHKeyForVirtualMachine, a user can set or reset the SSH keypair assigned to a virtual machine. A lost or compromised SSH keypair can be changed, and the user can access the VM by using the new keypair. Just create or register a new keypair, then call resetSSHKeyForVirtualMachine.

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Citrix Systems 4.2 manual Creating an Instance, Logging In Using the SSH Keypair, Resetting SSH Keys
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4.2 specifications

Citrix Systems, a leading provider of virtualization solutions and cloud computing technologies, released version 4.2 of its popular software, Citrix XenApp, which was previously known as Presentation Server. This version marked a significant evolution in providing users with remote access to applications and desktops, emphasizing simplicity, performance, and security.

One of the standout features of Citrix XenApp 4.2 is its improved application streaming capabilities. This technology allows applications to be delivered to users in real-time, reducing the need for extensive local installations and enhancing the user experience. With application streaming, administrators can efficiently manage applications on a central server while ensuring that users have immediate access to the necessary tools.

Another highlight of this version is the enhanced security measures put in place to protect sensitive data. Citrix XenApp 4.2 includes support for SSL encryption, providing a secure communication channel for data transmitted between the server and clients. This is particularly crucial for businesses that need to comply with strict data protection regulations. Additionally, the integration of endpoint security features ensures that unauthorized access to applications is minimized.

Performance enhancements are also a critical focus in this release. Citrix optimized the delivery of applications over various network conditions, ensuring that users experience minimal latency regardless of their location. This was achieved through the incorporation of SmartAccess and SmartControl technologies, which allow administrators to set policies based on user roles, device types, and network conditions. This level of granularity enables organization-wide security without compromising on usability.

The user experience was further improved with a revamped interface, making it easier for end-users to access their applications and data. Simplified menus, clear navigation paths, and the ability to customize user settings contributed to a more efficient workflow, allowing users to focus on their tasks rather than struggling with the software.

Finally, Citrix XenApp 4.2 was designed to be highly scalable. Organizations of all sizes could deploy this solution to deliver applications efficiently, adapting to their specific needs as their user base grows or changes. This flexibility is crucial for businesses looking to future-proof their IT investments while maintaining optimal performance.

In summary, Citrix XenApp 4.2 stands out with its enhanced application streaming, robust security features, improved performance under varying conditions, user-friendly interface, and scalability, making it an ideal choice for organizations seeking to leverage virtualization for remote access to applications and desktops.
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