> For the complete documentation index, see [llms.txt](https://deviceon.gitbook.io/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://deviceon.gitbook.io/docs/agent/background-services.md).
# Background Services
## **Main Service**
The main service for connecting to the DeviceOn server/cloud is called “**DeviceOnAgent**” on Windows or “**saagent.service**” on Linux. This service is configured to start **manually** by default.
The other related service is “**DeviceOnAgent Portal**” on Windows or “**deviceonagentwebservice.service**” on Linux. This provides the web interface and is configured to start automatically. It will launch the **DeviceOnAgent** service on startup.
{% tabs %}
{% tab title="Windows" %}
{% endtab %}
{% tab title="Linux" %}
To confim the connection status on Linux through **agnet\_status**:\
0: Disconnect, 1: Connected, 2: Connecting.
```bash
cat /usr/local/AgentService/agent_status
```
* To update remote server IP:
```bash
sudo sed -i "s/CURRENT_IP/NEW_IP/g" /usr/local/AgentService/agent_config.xml
sudo systemctl restart saagent.service
```
* To update IoT Key or Credential URL:
```bash
sudo vi /usr/local/AgentService/agent_config.xml
```
Update CrdentialURL and IoTKey tag value and save, then restart the saagent.service.
{% endtab %}
{% endtabs %}
## **Watchdog Service**
The “**SAWatchdog**” service is a basic watchdog governing “**DeviceOnAgent** (Windows), **saagent.service** (Linux)” in order to ensure service quality.
{% tabs %}
{% tab title="Windows" %}
{% endtab %}
{% tab title="Linux" %}
To list only the running services on linux, we run:
```bash
systemctl --type service --state running
```
{% endtab %}
{% endtabs %}
---
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