# Discourse-setup: nc のインストールを前提としています

**URL:** <https://meta.discourse.org/t/discourse-setup-assumes-nc-is-installed/106549>\
**Category:** Bug\
**Created:** [2019 年 1 月 15 日午前 3:10 UTC](https://meta.discourse.org/t/discourse-setup-assumes-nc-is-installed/106549 "2019-01-15T03:10:28Z")\
**Posts on this page:** 1\
**Showing post:** 1

<div class="post-metadata">

**Author:** ![supermathie](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/supermathie/32/507518_2.png) [@supermathie](https://meta.discourse.org/u/supermathie)\
**Post date:** [2019 年 1 月 15 日午前 3:10 UTC](https://meta.discourse.org/t/discourse-setup-assumes-nc-is-installed/106549/1 "2019-01-15T03:10:28Z")

</div>

Ran through the install using `discourse-setup` (I don’t think I ever have yet, so no time like the present!) and the following error showed up:

```plaintext
Checking your domain name . . .
WARNING:: This server does not appear to be accessible at dotest.example.net:443.

A connection to http://dotest.example.net (port 80) also fails.

This suggests that dotest.example.net resolves to the wrong IP address
or that traffic is not being routed to your server.

Google: "open ports YOUR CLOUD SERVICE" for information for resolving this problem.

You should probably answer "n" at the next prompt and disable Let's Encrypt.

This test might not work for all situations,
so if you can access Discourse at http://dotest.example.net, you might try anyway.

```

I believe this happened as `nc` isn’t installed so it couldn’t properly run the test. We should ensure `nc` is available before erroring out on this check.

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_[View the full topic](https://meta.discourse.org/t/discourse-setup-assumes-nc-is-installed/106549)._