IP Forwarding and Firewalling | Citrix Systems 4.2 instruction

Chapter 16. Managing Networks and Traffic

5. Click the IP address you want to work with.

6.
Click the Static NAT	button.

The button toggles between Enable and Disable, depending on whether static NAT is currently enabled for the IP address.

7.If you are enabling static NAT, a dialog appears where you can choose the destination VM and click Apply.

16.21. IP Forwarding and Firewalling

By default, all incoming traffic to the public IP address is rejected. All outgoing traffic from the guests is also blocked by default.

To allow outgoing traffic, follow the procedure in Section 16.21.1, “Egress Firewall Rules in an Advanced Zone”.

To allow incoming traffic, users may set up firewall rules and/or port forwarding rules. For example, you can use a firewall rule to open a range of ports on the public IP address, such as 33 through 44. Then use port forwarding rules to direct traffic from individual ports within that range to specific ports on user VMs. For example, one port forwarding rule could route incoming traffic on the public IP's port 33 to port 100 on one user VM's private IP. For more information, seeSection 16.21.2, “Firewall Rules” and Section 16.21.3, “Port Forwarding”.

16.21.1. Egress Firewall Rules in an Advanced Zone

The egress traffic originates from a private network to a public network, such as the Internet. By default, the egress traffic is blocked in default network offerings, so no outgoing traffic is allowed from a guest network to the Internet. However, you can control the egress traffic in an Advanced zone by creating egress firewall rules. When an egress firewall rule is applied, the traffic specific to the rule is allowed and the remaining traffic is blocked. When all the firewall rules are removed the default policy, Block, is applied.

16.21.1.1. Prerequisites and Guidelines

Consider the following scenarios to apply egress firewall rules:

•Egress firewall rules are supported on Juniper SRX and virtual router.

•The egress firewall rules are not supported on shared networks.

•Allow the egress traffic from specified source CIDR. The Source CIDR is part of guest network CIDR.

•Allow the egress traffic with protocol TCP,UDP,ICMP, or ALL.

•Allow the egress traffic with protocol and destination port range. The port range is specified for TCP, UDP or for ICMP type and code.

•The default policy is Allow for the new network offerings, whereas on upgrade existing network offerings with firewall service providers will have the default egress policy Deny.

16.21.1.2. Configuring an Egress Firewall Rule

1. Log in to the CloudPlatform UI as an administrator or end user.

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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.

Citrix Systems 4.2 manual IP Forwarding and Firewalling, Egress Firewall Rules in an Advanced Zone

Models: 4.2