What ports need to be open for Citrix Receiver?
Open ports for Citrix Gateway and XenMobile to manage apps
| TCP port | Description | Destination |
|---|---|---|
| 443 | Used for connections to StoreFront from Citrix Receiver or Receiver for Web to Virtual Apps and Desktops. | Citrix Gateway |
| 443 | Used for connections to XenMobile for web, mobile, and SaaS app delivery. | Citrix Gateway |
What is port associated with Citrix ICA?
Citrix Gateway
| Destination | Type | Details |
|---|---|---|
| TCP, UDP | For VPN tunnel with secure ICA connections | |
| Citrix Gateway | TCP | HTTPS – GUI Administration |
| TCP | If an HTML client is used, then only 8443 port needs to be open between client and Command Center server. Citrix recommends using an HTML client as much as possible. | |
| TCP | SSH Access |
What is session reliability in Citrix?
Session reliability keeps sessions active and on the user’s screen when network connectivity is interrupted. Users continue to see the application they’re using until network connectivity resumes. With session reliability, the session is kept active on the server.
How can I tell if port 1494 is open?
telnet [servername] 1494. If the ICA listener is working you will get a black screen with the word ICA echoing on it (ICAICAICA…) If you don’t get the ICA echoing on the screen, then you will get an error message. That means you ICA listener is corrupted (or the port 1494 is blocked).
What port does Citrix workspace use?
TCP 80/443
Common Citrix Communication Ports
| Source | Type | Port |
|---|---|---|
| Citrix Workspace app | TCP | 80/443 |
| ICA or HDX | TCP/UDP | 1494 |
| ICA or HDX with Session Reliability | TCP/UDP | 2598 |
| ICA or HDX over TLS | TCP/UDP | 443 |
How do I enable session reliability?
This setting specifies the TCP port number for incoming session reliability connections. By default, the port number is set to 2598….To change the session reliability port number:
- Start Citrix Studio.
- Open the Session reliability port number policy.
- Edit the port number.
- Click OK.
How do I keep Citrix session alive from the client side?
Enable client keep-alive on the Citrix ADC.
- At global level. Navigate to System > Settings, click Configure Modes and select Client side Keep Alive.
- At service level. Navigate to Traffic Management > Load Balancing > Services, and select the required service. In the Settings section, select Client Keep-Alive check box.
Is port 1494 a TCP or UDP?
Port 1494 Details
| Port(s) | Protocol | Details |
|---|---|---|
| 1494 | tcp,udp | |
| 1494 | tcp | Citrix Terminal Server |
| 1494 | tcp,udp | citrix-ica |
| 1494 | tcp,udp | ica |
What is ICA Keep Alive?
ICA keep alives Enabling this setting prevents broken connections from being disconnected. If the server detects no activity, this setting prevents Remote Desktop Services (RDS) from disconnecting the session. The server sends keep-alive messages every few seconds to detect if the session is active.
How do I keep my Citrix session active?
Does Citrix use TCP or UDP?
For XenApp/XenDesktop versions released in Q4 2017 or later (version 7.16 or newer), the default protocol for ICA traffic will be changed from ICA TCP to Enlightened Data Transport (EDT). EDT is a recently-developed protocol from Citrix and is UDP based, unlike traditional ICA which is is TCP based.