# OS checks

## Check Internet and DNS Connectivity

To get started with the AI Manager, ensure you have internet access and a functioning DNS. To troubleshoot and verify internet connectivity and DNS functionality on a Linux system, follow these steps:

#### Step 1: Test internet connectivity

To test if you have internet connectivity, you can try pinging an external server like Google's DNS server.

* **Ping an external server:** Run the following command:

  ```bash
  ping -c 4 8.8.8.8
  ```

  This command sends four ICMP echo requests to Google's DNS server. If you receive replies, your internet connection is working.

#### Step 2: Verify DNS functionality

If your network connection is active but you suspect DNS issues, you should verify that DNS resolution functions correctly.

* **Ping a domain name:** To check if DNS is working, try pinging a domain name:

  ```bash
  ping -c 4 google.com
  ```

  If the domain name resolves to an IP address and you receive replies, your DNS works. If not, you might see an error like "unknown host," indicating a DNS resolution issue.


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://nx.docs.scailable.net/nx-ai-manager-v6.1.2/support-and-troubleshooting/troubleshooting/os-checks.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.