# Discourse rebuild fails with port 443 in use

**URL:** <https://meta.discourse.org/t/discourse-rebuild-fails-with-port-443-in-use/53615>\
**Category:** Product Support\
**Tags:** unsupported-install\
**Created:** [December 1, 2016, 5:44am UTC](https://meta.discourse.org/t/discourse-rebuild-fails-with-port-443-in-use/53615 "2016-12-01T05:44:45Z")\
**Posts on this page:** 1\
**Showing post:** 12

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**Author:** ![littleviolette](https://avatars.discourse-cdn.com/v4/letter/l/d26b3c/32.png) [@littleviolette](https://meta.discourse.org/u/littleviolette)\
**Post date:** [March 10, 2018, 4:09am UTC](https://meta.discourse.org/t/discourse-rebuild-fails-with-port-443-in-use/53615/12 "2018-03-10T04:09:08Z")

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@Falco I have been having issues with port 443 and Let’s Encrypt as well probably due to the fact that I unintentionally installed Discourse behind nginx following the instruction [here](https://www.digitalocean.com/community/tutorials/how-to-install-discourse-behind-nginx-on-ubuntu-14-04).

Is there a way to safely reverse this process? Sorry I am not a professional programmer. 😕

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