# Let's Encrypt 因端口 80 被阻止而过期

**URL:** <https://meta.discourse.org/t/let-s-encrypt-expired-due-to-port-80-being-blocked/117546>\
**Category:** Support\
**Created:** [2019年五月13日 05:37 UTC](https://meta.discourse.org/t/let-s-encrypt-expired-due-to-port-80-being-blocked/117546 "2019-05-13T05:37:13Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Jay91](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/jay91/32/135181_2.png) [@Jay91](https://meta.discourse.org/u/Jay91)\
**Post date:** [2019年五月13日 05:37 UTC](https://meta.discourse.org/t/let-s-encrypt-expired-due-to-port-80-being-blocked/117546/1 "2019-05-13T05:37:13Z")

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Hello,

our Let’s Encrypt expired this morning and the website is showing error note (not private)  
please advise how i can renew it again, i made some searches here but i couldn’t understand anything.

And i found the reason that we blocked the HTTP connection this is why, so please help.  
we use digital ocean

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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:** [2019年五月13日 05:43 UTC](https://meta.discourse.org/t/let-s-encrypt-expired-due-to-port-80-being-blocked/117546/2 "2019-05-13T05:43:26Z")

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Unblock HTTP and rebuild, shutting down :80 isn’t supported. It’s used to verify the request for the certificate and once the certificate is issued it’s responsible for redirecting users to HTTPS. NGINX listens on both ports, so shutting :80 down doesn’t make the machine more secure.

You can’t issue a certificate via Let’s Encrypt with port 80 blocked.

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<div class="post-metadata">

**Author:** ![Jay91](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/jay91/32/135181_2.png) [@Jay91](https://meta.discourse.org/u/Jay91)\
**Post date:** [2019年五月13日 05:58 UTC](https://meta.discourse.org/t/let-s-encrypt-expired-due-to-port-80-being-blocked/117546/3 "2019-05-13T05:58:01Z")

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Fixed, Thanks a lot.

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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:** [2019年五月13日 06:18 UTC](https://meta.discourse.org/t/let-s-encrypt-expired-due-to-port-80-being-blocked/117546/4 "2019-05-13T06:18:32Z")

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It should be noted that if you don’t block the port the certificate will be automatically renewed, instead of expiring like it did this time around.

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**Author:** ![system](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/system/32/443519_2.png) [@system](https://meta.discourse.org/u/system)\
**Post date:** [2019年六月12日 06:18 UTC](https://meta.discourse.org/t/let-s-encrypt-expired-due-to-port-80-being-blocked/117546/5 "2019-06-12T06:18:36Z")

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