# This server does not appear to be accessible at 443

**URL:** https://meta.discourse.org/t/this-server-does-not-appear-to-be-accessible-at-443/144380
**Category:** Self-hosting
**Created:** [March 15, 2020, 11:05am UTC](https://meta.discourse.org/t/this-server-does-not-appear-to-be-accessible-at-443/144380 "2020-03-15T11:05:44Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![adrianbblk](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/adrianbblk/32/87512_2.png) [@adrianbblk](https://meta.discourse.org/u/adrianbblk)
#### Post date: [March 15, 2020, 11:05am UTC](https://meta.discourse.org/t/this-server-does-not-appear-to-be-accessible-at-443/144380/1 "2020-03-15T11:05:44Z")

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Hello, I’m trying to install discourse on my server, but I get this:

Please let me know what I should check?

```
Checking your domain name . . .

WARNING:: This server does not appear to be accessible at stumblr.in:443.

A connection to port 80 succeeds, however.

This suggests that your DNS settings are correct,

but something is keeping traffic to port 443 from getting to your server.

Check your networking configuration to see that connections to port 443 are allowed.

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

If you want to proceed anyway, you will need to

edit the containers/app.yml file manually.

```

---

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### Author: ![pfaffman](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/pfaffman/32/120154_2.png) [@pfaffman](https://meta.discourse.org/u/pfaffman)
#### Post date: [March 15, 2020, 12:51pm UTC](https://meta.discourse.org/t/this-server-does-not-appear-to-be-accessible-at-443/144380/2 "2020-03-15T12:51:06Z")

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Is port 443 open and not blocked by a firewall?

Or (if this test is somehow failing when it shouldn’t) you can do as suggested and edit the config file yourself and

```
./launcher rebuild app

```

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<div class="post-metadata">

### Author: ![adrianbblk](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/adrianbblk/32/87512_2.png) [@adrianbblk](https://meta.discourse.org/u/adrianbblk)
#### Post date: [March 15, 2020, 12:53pm UTC](https://meta.discourse.org/t/this-server-does-not-appear-to-be-accessible-at-443/144380/3 "2020-03-15T12:53:01Z")

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> [@pfaffman](#):
>
> Is port 443 open and not blocked by a firewall?

I think so, how to check this?

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<div class="post-metadata">

### Author: ![pfaffman](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/pfaffman/32/120154_2.png) [@pfaffman](https://meta.discourse.org/u/pfaffman)
#### Post date: [March 15, 2020, 12:54pm UTC](https://meta.discourse.org/t/this-server-does-not-appear-to-be-accessible-at-443/144380/4 "2020-03-15T12:54:45Z")

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Check the documentation of whoever provided the server.