# 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:** 1\
**Showing post:** 2

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**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**

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