# What happened to my hostname?

**URL:** <https://universal-blue.discourse.group/t/what-happened-to-my-hostname/11260>\
**Category:** Aurora\
**Created:** [December 10, 2025, 5:13pm UTC](https://universal-blue.discourse.group/t/what-happened-to-my-hostname/11260 "2025-12-10T17:13:05Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![GeoffClements](https://yyz2.discourse-cdn.com/free1/user_avatar/universal-blue.discourse.group/geoffclements/32/7863_2.png) [@GeoffClements](https://universal-blue.discourse.group/u/GeoffClements)\
**Post date:** [December 10, 2025, 5:13pm UTC](https://universal-blue.discourse.group/t/what-happened-to-my-hostname/11260/1 "2025-12-10T17:13:05Z")

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In the past the hostname of my Aurora based laptop has been “aurora”. Recently, and I’m not sure when exactly, the hostname has become a single letter “b”. Using the hostname cli command I can set the hostname but it doesn’t stick between reboots, returning to the enigmatic “b”. What gives?

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**Author:** ![Danathar](https://yyz2.discourse-cdn.com/free1/user_avatar/universal-blue.discourse.group/danathar/32/7758_2.png) [@Danathar](https://universal-blue.discourse.group/u/Danathar)\
**Post date:** [December 10, 2025, 5:29pm UTC](https://universal-blue.discourse.group/t/what-happened-to-my-hostname/11260/2 "2025-12-10T17:29:05Z")

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what command are you using

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**Author:** ![GeoffClements](https://yyz2.discourse-cdn.com/free1/user_avatar/universal-blue.discourse.group/geoffclements/32/7863_2.png) [@GeoffClements](https://universal-blue.discourse.group/u/GeoffClements)\
**Post date:** [December 10, 2025, 5:32pm UTC](https://universal-blue.discourse.group/t/what-happened-to-my-hostname/11260/3 "2025-12-10T17:32:42Z")

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sudo hostname aurora

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**Author:** ![inffy](https://yyz2.discourse-cdn.com/free1/user_avatar/universal-blue.discourse.group/inffy/32/7996_2.png) [@inffy](https://universal-blue.discourse.group/u/inffy)\
**Post date:** [December 10, 2025, 5:36pm UTC](https://universal-blue.discourse.group/t/what-happened-to-my-hostname/11260/4 "2025-12-10T17:36:29Z")

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use `hostnamectl set-hostname yourhostname`

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**Author:** ![Danathar](https://yyz2.discourse-cdn.com/free1/user_avatar/universal-blue.discourse.group/danathar/32/7758_2.png) [@Danathar](https://universal-blue.discourse.group/u/Danathar)\
**Post date:** [December 10, 2025, 5:40pm UTC](https://universal-blue.discourse.group/t/what-happened-to-my-hostname/11260/5 "2025-12-10T17:40:31Z")

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Yup, you beat me to it!

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**Author:** ![GeoffClements](https://yyz2.discourse-cdn.com/free1/user_avatar/universal-blue.discourse.group/geoffclements/32/7863_2.png) [@GeoffClements](https://universal-blue.discourse.group/u/GeoffClements)\
**Post date:** [December 10, 2025, 5:43pm UTC](https://universal-blue.discourse.group/t/what-happened-to-my-hostname/11260/6 "2025-12-10T17:43:59Z")

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> [@inffy](#):
>
> use `hostnamectl set-hostname yourhostname`

That did it thanks to both of you.

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**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/univeral_blue/original/2X/e/e39f7d1952979cf23b0f8d634e025fb38da50026.png) [@system](https://universal-blue.discourse.group/u/system)\
**Post date:** [December 13, 2025, 5:44pm UTC](https://universal-blue.discourse.group/t/what-happened-to-my-hostname/11260/7 "2025-12-13T17:44:15Z")

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Closed on December 13, 2025, 5:44pm UTC

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