--- 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](#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](#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](#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](#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](#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](#from-the-iop-data-node)

Destination	Type	Port	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