# Networks and files

The following generators produce values related to network locations and files.

For more information about these generators and how to configure them in the application, go to [networks-and-files](https://docs.tonic.ai/fabricate/rule-based-tables-and-columns/table-columns/generator-reference/networks-and-files "mention") in the generator reference.

## File Type Extension

Populates the column with a file extension. For example, .txt or .docx.

Uses the [general-column-configuration](https://docs.tonic.ai/fabricate/fabricate-api-and-cli/using-the-fabricate-api/data-model/api-column-attributes/general-column-configuration "mention").

## File Type MIME Type

Populates the column with a file MIME type. For example, text/plain or image/jpeg.

Uses the [general-column-configuration](https://docs.tonic.ai/fabricate/fabricate-api-and-cli/using-the-fabricate-api/data-model/api-column-attributes/general-column-configuration "mention").

## IP Address

Populates the column with an IP address. For example, 192.168.1.100 or 2001:0db8:0000:0000:0000:0000:1a2b:3c4d.

```json
{ 
  "name": string,
  "data_type": string,
  "generator": "IP Address",
  // Generator-specific fields
  "ip_address_version": "ipv4"|"ipv6", // Type of IP address to generate
  // End generator-specific fields
  "percent_null": integer,
  "virtual": boolean,
  // Advanced options
  "primary_key": boolean,
  "index": boolean,
  "seed": string,
  "postprocessing_sql": string
}
```

## MAC Address

Populates the column with a MAC address. For example, 00:1A:2B:3C:4D:5E.

```json
{ 
  "name": string,
  "data_type": string,
  "generator": "MAC Address",
  "percent_null": integer,
  "virtual": boolean,
  // Advanced options
  "primary_key": boolean,
  "index": boolean,
  "seed": string,
  "postprocessing_sql": string
}
```

## Project Name

Populates the column with the name of a project.

```json
{ 
  "name": string,
  "data_type": string,
  "generator": "Project Name",
  // Generator-specific fields
  "include_random_project_number", boolean, // Whether to append a random number
  // End generator-specific fields
  "percent_null": integer,
  "virtual": boolean,
  // Advanced options
  "primary_key": boolean,
  "index": boolean,
  "seed": string,
  "postprocessing_sql": string
}
```

### URL <a href="#url" id="url"></a>

Populates the column with a URL. For example, <https://example.com>.

```json
{ 
  "name": string,
  "data_type": string,
  "generator": "URL",
  // Generator-specific fields
  "protocol": boolean, // Whether to include the protocol
  "domain": boolean, // Whether to include the domain
  "path": boolean,  // Whether to include the path
  "filename": boolean,  // Whether to include the filename
  "query": boolean,  // Whether to include a query
  // End generator-specific fields
  "percent_null": integer,
  "virtual": boolean,
  // Advanced options
  "primary_key": boolean,
  "index": boolean,
  "seed": string,
  "postprocessing_sql": string
}
```

### User Agent <a href="#user-agent" id="user-agent"></a>

Populates the column with a user agent value. For example, Mozilla/5.0 (Windows NT 10.0; Win64; rv:110.0.

```json
{ 
  "name": string,
  "data_type": string,
  "generator": "User Agent",
  "percent_null": integer,
  "virtual": boolean,
  // Advanced options
  "primary_key": boolean,
  "index": boolean,
  "seed": string,
  "postprocessing_sql": string
}
```