Unable to generate a preview for a web page in the same network

support
1

I have a self-hosted Discourse server (in my own network, on my own server).

In a new post I am pasting a URL to a site which is hosted in the same local network as my Discourse server, i.e. both Discourse server and the target site reside behind the same NAT.

I am getting the following error:

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image1239×292 14 KB

When pasting the very same URL anywhere else (Facebook, Twitter etc) – the preview is generated just fine.
image.

My suspicion is Discourse back-end server (docker? Linux?) is not able to resolve the DNS name correctly, even though the host name can be resolved in my local network just fine:

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Where should I check/troubleshoot on why the name is not being resolved by Discourse?

2

I found a resolution-- it was just a matter of adding my internal hosts to the Onebox configuration :slight_smile:

It was easy-- sorry for bothering you.

2 Likes
3

I don’t know about bothering, but you just make kb a little bit better.

2 Likes