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Certbot error curl: (35) OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to acme-v02.api.letsencrypt.org:443

Posted April 13, 2021 3.1k views
Ubuntu 18.04

I’m doing certbot using snap and PPA, both fails miserably.
and some people on internet ask whether you can do a curl manually or not.
Then I tried to curl it, and it returns
error curl: (35) OpenSSL SSLconnect: SSLERROR_SYSCALL in connection to acme-v02.api.letsencrypt.org:443

Does anyone have the same problem ? FYI I’m using the lowest CPU on droplet

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noviceboy17
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noviceboy17

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Certbot unable to locate virtual host Question Question
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3 answers
noviceboy17 April 14, 2021

Just created a snapshot and build a new droplet with the snapshot.
Certbot worked normally.
I think it’s because of other droplet (lowest droplet uses shared CPU).

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noviceboy17 April 14, 2021
[deleted]
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KFSys April 14, 2021

Hi @noviceboy17,

In that regard, to your answer, can you confirm what Droplet are you using? What OS and additionally, did you try to run

apt update

Prior to trying to install certbot by any of the mentioned ways?

I’m not sure it’s related to the CPU and it might be something else.

Anyway, I’m glad to see everything is working accordingly.

Regards,
KFSys

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  • noviceboy17 April 14, 2021

    Regardless the problem is resolved.
    I’m using Ubuntu 20.04, tried to rebuilt (same server) to 18.04.
    Problem still occured, I did everything including apt update.
    I also did curl https://www.google.com/ , it works fine,
    but can’t curl https://acme-v02.api.letsencrypt.org/directory
    Then I read in some forum that someone also having the same problem but he is on different scenario, his scenario is his other docker container connected to VPN.

    Because of that, I have a hunch what if I make another similar droplet using snapshot.
    And yes, certbot worked properly.

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