Virtualization Ports

VMware vSphere Management

Port 902 is primarily used by VMware vSphere for communication between the vSphere Client, ESXi hosts, and VMware management agents. It facilitates remote management, tasks automation, and host operations. The port enables secure communication pathways for remote console access, management functionalities, data transfers within VMware infrastructures, and integration with vCenter Server for centralized management.

VMware Console UDP

UDP port 902 is primarily used by VMware Server Console for communication between the managed VMware server and the management console. It enables important service functions like remote management, control, and monitoring of virtual infrastructure, ensuring administrators can maintain oversight of VMware environments efficiently through network communications.

SCOL Name Service

Port 1200 is primarily utilized by the SCOL 3D virtual worlds platform for world name resolution services, enabling clients to discover and connect to 3D virtual environments. It acts as a directory service that facilitates interactions within SCOL's interactive and immersive spaces.

Citrix ICA Session Reliability

TCP port 2598 is used by Citrix Independent Computing Architecture (ICA) protocol when Session Reliability is enabled, providing a seamless user experience during momentary network disruptions. Unlike the standard ICA port 1494, port 2598 supports the Common Gateway Protocol (CGP), allowing Citrix sessions to maintain connectivity without user interruption by buffering data until the network stabilizes.

QualiSystems TestShell

QualiSystems TestShell Suite is a comprehensive automation platform designed to accelerate and streamline network, cloud, and virtualization testing processes. It provides a modular framework enabling users to design, execute, and analyze test configurations in complex lab environments efficiently.

IBM RMC

IBM RMC (Remote Monitoring and Control) is a proprietary IBM protocol primarily used within IBM Power Systems environments. It enables the communication between the Hardware Management Console (HMC), Integrated Virtualization Manager (IVM), and logical partitions (LPARs), facilitating dynamic partition management and monitoring. This protocol is vital for resource allocation, hardware status updates, and remote configuration within enterprise IBM systems, supporting efficient virtualization and system management.

VMware Server UI (Insecure)

Port 8222 is primarily associated with the VMware Server Management User Interface, which provides web-based access to VMware virtualization servers. Notably, connections on this port are unsecured, exposing management functions without encryption and posing potential security risks. It is commonly seen alongside its secure counterpart on port 8333.

VMware Server UI (Secure)

Port 8333 is commonly used by VMware Server as a secure web interface for management. This interface provides administrators with access to control and configure virtual machines remotely through a browser-based console, offering convenient virtualization management capabilities.

VMware VI Client

Port 901 is primarily used by the VMware Virtual Infrastructure (VI) Client, which facilitates management communication between VMware ESX/ESXi servers and the management interface. It often serves the connection flow from servers being managed back to the console, enabling user access to virtualization controls and management features.

VMware Server Alternate Port

Port 904 serves as an alternate communication channel for VMware components when the default port 902 is unavailable, often on certain Linux distributions such as SUSE. It facilitates management connections for ESXi hosts, vCenter Server, and remote console services, playing a critical role in the VMware virtualization ecosystem by enabling secure and efficient management traffic flow.

iSCSI

iSCSI, defined in RFC 3720, stands for Internet Small Computer Systems Interface. It is a network protocol that enables the transport of block-level storage data over TCP/IP networks, allowing clients (initiators) to transmit SCSI commands to storage devices (targets) located remotely. This capability facilitates Storage Area Network (SAN) implementations without dedicated fiber channel infrastructure.

Citrix ICA

Port 1494 is primarily used for the Citrix Independent Computing Architecture (ICA) protocol, which facilitates remote desktop connectivity within Citrix XenApp and XenDesktop environments. ICA enables thin clients to connect efficiently to applications and desktops hosted on centralized servers, optimizing bandwidth and providing a seamless user experience.

VMware Remote Console

VMware Remote Console (VMRC) enables users to remotely access and manage virtual machines hosted on VMware infrastructure, providing full console access with mouse and keyboard control for administration and troubleshooting purposes.