---
title: "Communication Ports Used by ControlUp On-Premises Mode"
slug: "communication-ports-used-by-controlup-on-premises-mode"
updated: 2025-08-19T13:35:21Z
published: 2025-08-19T13:35:21Z
canonical: "support.controlup.com/communication-ports-used-by-controlup-on-premises-mode"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://support.controlup.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Communication Ports Used by ControlUp On-Premises Mode

![360017814378CUOn-PremisesSOLVE.jpg. Diagram showing controlup on-premises components and the connections between them](https://cdn.document360.io/098100b7-b9da-4bea-b4b9-017140ab863e/Images/Documentation/360017814378CUOn-PremisesSOLVE.jpg)

## [From the On-premises Server/Application](/docs/communication-ports-used-by-controlup-on-premises-mode#from-the-onpremises-serverapplication)

| Destination | Type | Port | Protocol | Details |
| --- | --- | --- | --- | --- |
| SQL Instance | TCP | 1433 | ms-sql-s | Application to SQL communication |
| Failover Server | TCP | 50500, 50501 | LDAP | LDS between COP Servers |

## [From the Console](/docs/communication-ports-used-by-controlup-on-premises-mode#from-the-console)

| Destination | Type | Port | Protocol | Details |
| --- | --- | --- | --- | --- |
| Citrix XenDesktop Controllers | TCP | 80 | HTTP | Communication with XenDesktop Infrastructure |
| Citrix XenServer Pool Master/Hosts | TCP | 80 | HTTP | Communication with XenServer Infrastructure (and RRD communication) |
| ControlUp Agent | TCP | 40705 | WCF | Console to agent communication via the WCF protocol |
| ControlUp Agent | TCP | 135 - 139, 445, 49152-65535 | RPC / WMI | Agent deployment and upgrades via the console Certain OOB actions, such as restarting the agent |
| ControlUp Monitor | TCP | 40706 | WCF | Console - Monitor management port |
| ControlUp Monitor | TCP | 135 - 139, 445, 49152-65535 | RPC / WMI | Monitor deployment and upgrades via the console Certain OOB actions, such as restarting the agent |
| ControlUp On-premises Server | TCP | 443 | HTTPS | Communication with ControlUp On-Premises Server web services |
| Domain Controllers | TCP | 389, 3268 | LDAP | LDAP communication with Domain Controllers. Used for: Initial Login, Adding new Computers, Adding new AD connections |
| NetScalers | TCP | 443 / 80 | HTTP(S) | Depending on what the administrator configured |
| Nutanix/AHV | TCP | 9440 |  | Communication with Nutanix Infrastructure |
| Horizon Connection Server | TCP | 443 | HTTPS | Communication with Horizon Infrastructure |
| VMware vCenter Server | TCP | 443 | HTTPS | Communication with vSphere Infrastructure |
| *.cloud.com | TCP | 443 | HTTPS | Communication with Citrix Cloud |
| Linux Client | TCP | 22 | SSH | Communication with Linux Machine |

## [From the Monitor](/docs/communication-ports-used-by-controlup-on-premises-mode#from-the-monitor)

| Destination | Type | Port | Protocol | Details |
| --- | --- | --- | --- | --- |
| Citrix XenDesktop Controllers | TCP | 80 | HTTP | Communication with XenDesktop Infrastructure |
| Citrix XenServer Pool Master/Hosts | TCP | 80 | HTTP | Communication with XenServer Infrastructure (and RRD communication) |
| ControlUp Agent | TCP | 40705 | WCF | Console to agent communication via the WCF protocol |
| ControlUp Agent | TCP | 135 - 139, 445 | RPC / WMI | Only used for agent deployment via the monitor |
| ControlUp Monitor | TCP | 40706 | WCF | Inter-Monitor communication |
| ControlUp On-premises Server | TCP | 443 | HTTPS | Communication with ControlUp On-premises Server web services |
| Domain Controllers | TCP | 389, 3268 | LDAP | LDAP communication with Domain Controllers. Used for: Initial Login, Adding new Computers, Adding new AD connections |
| IOP Appliance (standalone) | TCP | 443/9997/8089/9887 |  | For sending historical data and monitor statistics to the IOP appliance(s) |
| IOP Data Node | TCP | 9997 |  | Sending data to Insights |
| NetScalers | TCP | 443 / 80 | HTTP(S) | Depending on what the administrator configured |
| Nutanix/AHV | TCP | 9440 |  | Communication with Nutanix Infrastructure |
| SMTP Server | TCP | 25 | SMTP | Email Alerts |
| Horizon Connection Server | TCP | 443 | HTTPS | Communication with Horizon Infrastructure |
| VMware vCenter Server | TCP | 443 | HTTPS | Communication with vSphere Infrastructure |
| *.cloud.com | TCP | 443 | HTTPS | Communication with Citrix Cloud |
| Linux Client | TCP | 22 | SSH | Communication with Linux Machine |
| Solve Server | TCP | 443 | HTTPS | Communication with Solve |

## [From the Data Collector](/docs/communication-ports-used-by-controlup-on-premises-mode#from-the-data-collector)

| Destination | Type | Port | Protocol | Details |
| --- | --- | --- | --- | --- |
| Citrix XenDesktop Controllers | TCP | 80 | HTTP | Communication with XenDesktop Infrastructure |
| Citrix XenServer Pool Master/Hosts | TCP | 80 | HTTP | Communication with XenServer Infrastructure (and RRD communication) |
| NetScalers | TCP | 443 / 80 | HTTP(S) | Depending on what the administrator configured |
| Nutanix/AHV | TCP | 9440 |  | Communication with Nutanix Infrastructure |
| Horizon Connection Server | TCP | 443 | HTTPS | Communication with Horizon Infrastructure |
| VMware vCenter Server | TCP | 443 | HTTPS | Communication with vSphere Infrastructure |
| *.cloud.com | TCP | 443 | HTTPS | Communication with Citrix Cloud |
| Linux Client | TCP | 22 | SSH | Communication with Linux Machine |
| https://management.azure.com | TCP | 443 | HTTPS | Azure |

## [From the IOP Master Node](/docs/communication-ports-used-by-controlup-on-premises-mode#from-the-iop-master-node)

| Destination | Type | Port | Protocol | Details |
| --- | --- | --- | --- | --- |
| Domain Controllers | TCP | 389/636, 3268 | LDAP(S) | LDAP communication with Domain Controllers. Used for: Initial Login, Adding new Computers, Adding new AD connections |
| IOP Data Node | TCP | 8089 |  | Cluster Communication |
| SMTP Server | TCP | 25 | SMTP |  |

## [From the IOP Data Node](/docs/communication-ports-used-by-controlup-on-premises-mode#from-the-iop-data-node)

| Destination | Type | Port | Protocol | Details |
| --- | --- | --- | --- | --- |
| IOP Data Node | TCP | 9887 |  | Data Replication |
| IOP Data Node | TCP | 8089 |  | Cluster Communication |
| IOP Master Node | TCP | 8089 |  | Cluster Communication |
| IOP Data Nodes | TCP | 8000 |  | Data Node Ul |
| IOP Master Nodes | TCP | 8080 |  | Master Node UI Port |
| IOP Data and Master Nodes | TCP | 8777 |  | IOP Control |