Chapter 16. Managing Networks and Traffic

NetScaler ADC Type

Description of Capabilities

CloudPlatform Supported

 

 

Features

 

 

 

 

act as application firewall and

supported without limitation.

 

load balancer

In basic zones, static NAT,

 

 

elastic IP (EIP), and elastic

 

 

load balancing (ELB) are also

 

 

provided.

 

 

 

VPX

Virtual appliance. Can run as

Supported on ESXi and

 

VM on XenServer, ESXi, and

XenServer. Same functional

 

Hyper-V hypervisors. Same

support as for MPX.

 

functionality as MPX

CloudPlatform will treat VPX

 

 

and MPX as the same device

 

 

type.

 

 

 

SDX

Physical appliance. Can create

CloudPlatform will dynamically

 

multiple fully isolated VPX

provision, configure, and

 

instances on a single appliance

manage the lifecycle of

 

to support multi-tenant usage

VPX instances on the SDX.

 

 

Provisioned instances are

 

 

added into CloudPlatform

 

 

automatically – no manual

 

 

configuration by the

 

 

administrator is required. Once

 

 

a VPX instance is added into

 

 

CloudPlatform, it is treated the

 

 

same as a VPX on an ESXi

 

 

host.

 

 

 

16.7.2. Configuring SNMPCommunity String on a RHEL Server

The SNMP Community string is similar to a user id or password that provides access to a network device, such as router. This string is sent along with all SNMP requests. If the community string is correct, the device responds with the requested information. If the community string is incorrect, the device discards the request and does not respond.

The NetScaler device uses SNMP to communicate with the VMs. You must install SNMP and configure SNMP Community string for a secure communication between the NetScaler device and the RHEL machine.

1. Ensure that you installed SNMP on RedHat. If not, run the following command:

yum install net-snmp-utils

2.Edit the /etc/snmp/snmpd.conf file to allow the SNMP polling from the NetScaler device.

a.Map the community name into a security name (local and mynetwork, depending on where the request is coming from):

Note

Use a strong password instead of public when you edit the following table.

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Citrix Systems 4.2 manual Configuring SNMPCommunity String on a Rhel Server, Vpx
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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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