# Unrecognized domain / IP

**URL:** <https://forums.plex.tv/t/unrecognized-domain-ip/904677>\
**Category:** General Discussions\
**Tags:** server-linux\
**Created:** [February 5, 2025, 8:36pm UTC](https://forums.plex.tv/t/unrecognized-domain-ip/904677 "2025-02-05T20:36:29Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![misteralexander](https://avatars.discourse-cdn.com/v4/letter/m/a8b319/32.png) [@misteralexander](https://forums.plex.tv/u/misteralexander)\
**Post date:** [February 5, 2025, 8:36pm UTC](https://forums.plex.tv/t/unrecognized-domain-ip/904677/1 "2025-02-05T20:36:29Z")

</div>

Feb 04, 2025 16:30:07.333 [140691205802808] DEBUG - Request came in with unrecognized domain / IP ‘[plex.internal.domain.com](http://plex.internal.domain.com)’ in header Host; treating as non-local

- DATE = Feb 04, 2025
- TIME = 16:30:07.333
- LOG\_LEVEL = DEBUG
- MESSAGE = Request came in with unrecognized domain / IP ‘[plex.internal.domain.com](http://plex.internal.domain.com)’ in header Host; treating as non-local
- THREAD\_ID = [140691205802808]

I have **1,850** of these events in the last 24 hours. It doesn’t negatively impact my Plex experience, but I’m curious about how I “fix” it.

I routinely access my Plex UI via FQDN.

---

<div class="post-metadata">

**Author:** ![ChuckPa](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/chuckpa/32/79710_2.png) [@ChuckPa](https://forums.plex.tv/u/ChuckPa)\
**Post date:** [February 5, 2025, 8:50pm UTC](https://forums.plex.tv/t/unrecognized-domain-ip/904677/2 "2025-02-05T20:50:32Z")

</div>

Add your FQDN (in a P12 file)

- Cert
- Key
- CA

to PMS so it recognizes it

> [@Linux Tips](https://forums.plex.tv/t/linux-tips/276247/25):
>
> OpenSSL v3.0.0 and PMS. For those using their own domains and certificates with PMS , PMS 1.32.0.6865 and above updates OpenSSL from v1.1.1 to v3.0.0 . (changed the numbering scheme in the process) The consequence of this is OpenSSL v3 removed several “less secure” encryption methods. The impact on you, if you’re using an older distributions where openssl v3 is not the default, if not already doing so, you will need pay special attention to how your certificates are generated As example,…

You then add your P12 file path in **Settings - server - Network - Show Advanced**

---

<div class="post-metadata">

**Author:** ![system](https://global.discourse-cdn.com/plex/original/3X/2/a/2acb9765406f63293d357b4ec509ec39aa28f2ad.png) [@system](https://forums.plex.tv/u/system)\
**Post date:** [May 6, 2025, 8:50pm UTC](https://forums.plex.tv/t/unrecognized-domain-ip/904677/3 "2025-05-06T20:50:53Z")

</div>

This topic was automatically closed 90 days after the last reply. New replies are no longer allowed.