> For the complete documentation index, see [llms.txt](https://docs.enginsight.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.enginsight.com/docs/manual/english/platform-usage/observations/health-checks/port-monitoring/add-port-check.md).

# Add Port Check

<i class="fa-computer-mouse">:computer-mouse:</i> Click <i class="fa-plus">:plus:</i> **Add Port Check** in the upper-right corner of the [Port Monitoring Overview](/docs/manual/english/platform-usage/observations/health-checks/port-monitoring.md#port-monitoring-overview) to create a new port check. The **Observations** → **Port Monitoring** → **Add** view opens.

<i class="fa-computer-mouse">:computer-mouse:</i> After configuring all settings, click **Add Port Check** to save and create the new port check.

{% hint style="danger" %}
**Please note**: If you leave this view without clicking **Add Port Check**, all configured settings will be lost and cannot be recovered.
{% endhint %}

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## Settings

The following options are available:

<table><thead><tr><th width="199.921875">Option</th><th>Description</th></tr></thead><tbody><tr><td>Watchdog</td><td><p>Select the Watchdog that should monitor the corresponding target system.</p><div data-gb-custom-block data-tag="hint" data-style="danger" class="hint hint-danger"><p><strong>Please note</strong>: The Watchdog must be able to access the IP address of the target system.</p></div><p><i class="fa-computer-mouse">:computer-mouse:</i> Click the <strong>Watchdog</strong> field to expand a list of all available Watchdogs, and select a suitable Watchdog. In addition to the Watchdog name, all subnets that the Watchdog can monitor are displayed. Use the free-text input to find Watchdogs in the list more quickly.</p></td></tr><tr><td>IP Address</td><td>Enter the IP address of the network device or the name of the domain whose ports should be monitored.</td></tr><tr><td>Description</td><td><p>Provide a more detailed description of the port check.</p><div data-gb-custom-block data-tag="hint" data-style="info" class="hint hint-info"><p>This field is optional.</p></div></td></tr><tr><td>Tags</td><td><p>Specify tags that can be used, for example, to assign the port check to alarms.</p><div data-gb-custom-block data-tag="hint" data-style="info" class="hint hint-info"><p>The default tags are <strong>Observation</strong> and <strong>Ports</strong>.</p></div><p><i class="fa-computer-mouse">:computer-mouse:</i> Click the <strong>Tags</strong> field and enter a tag name of your choice, or select one from the list of existing tags. Press <strong>Enter</strong> to confirm your entry. Click a tag to remove it from the <strong>Tags</strong> field.</p></td></tr><tr><td>Ports (Comma-Separated)</td><td><p>Enter one or more ports whose reachability should be checked.</p><div data-gb-custom-block data-tag="hint" data-style="info" class="hint hint-info"><p>The default port is <strong>80</strong>.</p></div><div data-gb-custom-block data-tag="hint" data-style="warning" class="hint hint-warning"><p><strong>Please note</strong>: If you enter multiple port numbers, separate them with commas and no spaces, for example, <strong>80,443</strong>.</p></div></td></tr><tr><td>Default Ports</td><td><p>This section lists several default ports for various services that you can add directly to the <strong>Ports</strong> field.<br><br>The following ports are displayed:</p><ul><li><strong>21</strong>: FTP (File Transfer Protocol)</li><li><strong>22</strong>: SSH (Secure Shell)</li><li><strong>53</strong>: DNS (Domain Name System)</li><li><strong>80</strong>: HTTP (Hypertext Transfer Protocol)</li><li><strong>443</strong>: HTTPS (Hypertext Transfer Protocol Secure)</li></ul><p><br><i class="fa-computer-mouse">:computer-mouse:</i> Click <strong>Add</strong> next to a port to add it to the <strong>Ports</strong> field.</p></td></tr></tbody></table>

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