# Discourse failing due to expired certificates, rebuilt app, now discourse not working

**URL:** <https://meta.discourse.org/t/discourse-failing-due-to-expired-certificates-rebuilt-app-now-discourse-not-working/258614>\
**Category:** Self-hosting\
**Created:** [March 18, 2023, 8:04pm UTC](https://meta.discourse.org/t/discourse-failing-due-to-expired-certificates-rebuilt-app-now-discourse-not-working/258614 "2023-03-18T20:04:54Z")\
**Posts on this page:** 1\
**Showing post:** 12

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**Author:** ![Stephen](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/stephen/32/95011_2.png) [@Stephen](https://meta.discourse.org/u/Stephen)\
**Post date:** [March 30, 2023, 6:11am UTC](https://meta.discourse.org/t/discourse-failing-due-to-expired-certificates-rebuilt-app-now-discourse-not-working/258614/12 "2023-03-30T06:11:49Z")

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If you’re using the [standard install](https://meta.discourse.org/t/142537?silent=true) then 80 and 443 will be listening as standard. Check your app.yml for the `expose:` section.

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_[View the full topic](https://meta.discourse.org/t/discourse-failing-due-to-expired-certificates-rebuilt-app-now-discourse-not-working/258614)._