# Agent Installation - Knowledge base

## Changing Endpoint Central Server's Name/IP/Port Details in Agent

### Problem

Agents not communicating with the server after migration.

### Cause

The new server details like FQDN, IP, Port numbers are not available with the agent.

### Resolution

Changing the following details in the Endpoint Central Agents:

- The Name or the IP Address of the Endpoint Central Server
- The HTTP and HTTPS ports that are used by the Endpoint Central Agents to communicate with the Server
- The mode of the communication as HTTP or HTTPS

To change the values, either a GPO or a cscript can be used. This page explains about using cscript/commands to achieve the same.

[Learn about using GPO to inform agents about new server details.](https://www.manageengine.com/products/desktop-central/migrated-server-details-gpo.html)

### Steps:

1. **For Windows** – Download the [configureDCAgentServerCommunication.txt](https://www.manageengine.com/products/desktop-central/configureDCAgentServerCommunication.txt) and rename it to `configureDCAgentServerCommunication.vbs`.  
   **For Mac** – Download the [configureDCAgentServerCommunication_mac.txt](https://www.manageengine.com/products/desktop-central/configureDCAgentServerCommunication_mac.txt) and rename it to `configureDCAgentServerCommunication.sh`.  
   **For Linux** – Download the [configureDCAgentServerCommunication_linux.txt](https://www.manageengine.com/products/desktop-central/configureDCAgentServerCommunication_linux.txt) and rename it to `configureDCAgentServerCommunication.sh`.

2. Copy the script to the client computers where the agent is installed.

3. Open a command prompt/terminal.

4. To execute the script for Mac & Linux agents, add executable permission by running the command:

   ```bash
   chmod +x configureDCAgentServerCommunication.sh
   ```

5. Execute the command given below:

   **For Windows**

   ```bash
   cscript configureDCAgentServerCommunication.vbs <DCServerName> <DCServer IP Address> <DCServer HTTP Port> <DCServer HTTPS Port> <DCServerAgent Comm Protocol>
   ```

   Example:

   ```bash
   cscript configureDCAgentServerCommunication.vbs joe.manageengine.com 192.168.112.146 8020 8383 https
   ```

   **For Mac**

   ```bash
   sudo ./configureDCAgentServerCommunication.sh <DCServerName> <DCServer IP Address> <DCServer HTTP Port> <DCServer HTTPS Port> <DCServerAgent Comm Protocol>
   ```

   Example:

   ```bash
   sudo ./configureDCAgentServerCommunication.sh joe.manageengine.com 192.168.112.146 8020 8383 https
   ```

   **For Linux**

   ```bash
   sudo ./configureDCAgentServerCommunication.sh <server_name> <server_ip> <http_port> <'http'/'https'>
   ```

   Example:

   ```bash
   sudo ./configureDCAgentServerCommunication.sh joe.manageengine.com 192.168.112.146 8020 https
   ```

**Applies to:** Server Migration, Agent-Server Communication  

**Keywords:** Update Server Details, Agent-Server Communication