Magento 2.1.18 is the final 2.1.x release. After June 2019, Magento 2.1.x will no longer receive security patches, quality fixes, or documentation updates.
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Verify the installation

Verify the storefront (with optional sample data)

Go to the storefront in a web browser. For example, if your Magento installation base URL is http://www.example.com, enter it in your browser’s address or location bar.

The following figure shows a sample storefront page. If it displays as follows, your installation was a success!

Magento storefront with the Luma theme

Verify the storefront (no sample data)

Go to the storefront in a web browser. For example, if your Magento installation base URL is http://www.example.com, enter it in your browser’s address or location bar.

The following figure shows a sample storefront page. If it displays as follows, your installation was a success!

Magento storefront which verifies a successful installation

If the page displays a 404 (Not Found) or unconfigured (no styles, only text), see After installing, images and stylesheets do not load; only text displays, no graphics.

Verify the Magento Admin

Go to the Magento Admin in a web browser. For example, if your Magento installation base URL is http://www.example.com, and the Admin URI is admin_au1nT, enter http://www.example.com/admin_au1nT in your browser’s address or location bar.

(The Admin URI is specified by the value of the backend-frontname installation parameter.)

When prompted, log in as a Magento Administrator.

The following figure shows a sample Magento Admin page. If it displays as follows, your installation was a success!

Magento Admin which verifies a successful installation

If the page displays unconfigured (no styles, only text), see After installing, images and stylesheets do not load; only text displays, no graphics.

If you get a 404 (Not Found) error similar to the following, see Cannot access Magento software in a web browser.

The requested URL /magento2index.php/admin/admin/dashboard/index/key/0c81957145a968b697c32a846598dc2e/ was not found on this server.

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