# Nginx: \[emerg\] a duplicate listen \[::\]:443

**URL:** <https://community.letsencrypt.org/t/nginx-emerg-a-duplicate-listen-443/155825>\
**Category:** Help\
**Created:** [July 16, 2021, 7:17am UTC](https://community.letsencrypt.org/t/nginx-emerg-a-duplicate-listen-443/155825 "2021-07-16T07:17:04Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Xiaojiba](https://avatars.discourse-cdn.com/v4/letter/x/5daacb/32.png) [@Xiaojiba](https://community.letsencrypt.org/u/Xiaojiba)\
**Post date:** [July 16, 2021, 7:17am UTC](https://community.letsencrypt.org/t/nginx-emerg-a-duplicate-listen-443/155825/1 "2021-07-16T07:17:05Z")

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Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g. [crt.sh | example.com](https://crt.sh/?q=example.com)), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.

My domain is: www.qify.app

I ran this command:  
sudo certbot --nginx -d qify.app -d www.qify.app

It produced this output:  
nginx restart failed:  
nginx: [emerg] a duplicate listen [::]:443 in /etc/nginx/sites-enabled/qify.app:17

My web server is (include version):  
NodeJS (14)

The operating system my web server runs on is (include version):  
Ubuntu 20.04LTS

My hosting provider, if applicable, is:  
Google Domains

I can login to a root shell on my machine (yes or no, or I don't know):

I'm using a control panel to manage my site (no, or provide the name and version of the control panel):  
no

The version of my client is (e.g. output of `certbot --version` or `certbot-auto --version` if you're using Certbot):  
certbot 1.17.0

I visited an already started thread, but the solution was not given...

Thanks a lot

> [@\[Solved\] Nginx: \[emerg\] duplicate listen options for \[::\]:443](https://community.letsencrypt.org/t/solved-nginx-emerg-duplicate-listen-options-for-443/54899):
>
> M…

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<div class="post-metadata">

**Author:** ![rg305](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/rg305/32/91314_2.png) [@rg305](https://community.letsencrypt.org/u/rg305)\
**Post date:** [July 16, 2021, 1:49pm UTC](https://community.letsencrypt.org/t/nginx-emerg-a-duplicate-listen-443/155825/2 "2021-07-16T13:49:35Z")

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Hi @Xiaojiba, and welcome to the LE community forum 🙂

Please show this file:

> [@Xiaojiba](#):
>
> nginx: [emerg] a duplicate listen [::]:443 in /etc/nginx/sites-enabled/qify.app:17

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<div class="post-metadata">

**Author:** ![system](https://global.discourse-cdn.com/letsencrypt/original/3X/c/a/ca6c06ea1ea201324bba7048c6841ce60236468d.png) [@system](https://community.letsencrypt.org/u/system)\
**Post date:** [August 15, 2021, 1:50pm UTC](https://community.letsencrypt.org/t/nginx-emerg-a-duplicate-listen-443/155825/3 "2021-08-15T13:50:34Z")

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