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(https://stackoverflow.co/teams/) Learn more about Teams           (https://cdn.sstatic.net/Sites/stackoverflow/Img/apple-touch-icon.png?v=c78bd457575a) (/questions/53784876/nginx-setting-up-ssl-with-existing-crt-key-and-ca-pem-files) Nginx - setting up SSL with existing .crt, .key and CA.pem files  (/questions/ask) Ask Question     (2018-12-14 18:12:39Z) Asked 6 years, 3 months ago  Modified (?lastactivity) (2018-12-14 19:26:54Z) 6 years, 3 months ago  (Viewed 11,514 times) Viewed 12k times          This question shows research effort; it is useful and clear  (70:3:31e,16:bdb3c19243c3135d,10:1743963991,16:d9a0372f853cd287,8:53784876,3dfaae678f66ff19026b263ee64ab8f9349625906fe972b33acd9833832d429d) 1  (This question does not show any research effort; it is unclear or not useful)    (70:3:31e,16:31c64ff6a22c756d,10:1743963991,16:67d5b888b75f45f2,8:53784876,b2f2d3058d45b8e181fee81fca46ec114b074d4a648583ce79666c3863c15d6c)      Save this question.  (/posts/53784876/timeline)    Show activity on this post.    I have a .crt , .key and CA.pem files that were generated (https://pastebin.com/Jzk7gSRh) like this . These certs are kind of project-wide, and they work when firing up a (https://webpack.js.org/configuration/dev-server/#devserver-https) webpack-dev-server server on HTTPS like: devServer: {
  https: {
    key: fs.readFileSync('/path/to/example.com.key'),
    cert: fs.readFileSync('/path/to/examle.com.crt'),
    ca: fs.readFileSync('/path/to/CA.pem'),
  }
}   Now I need to setup an Nginx server using these 3 files, but I've been trying with no luck. Here's my config: server {
    listen       3000;

    ssl_certificate certs/example.com.crt;
    ssl_certificate_key certs/example.com.key;

    # where does the CA.pem file go??
}   The result of this is Chrome giving me a This site can’t provide a secure connection 
example.com sent an invalid response.
ERR_SSL_PROTOCOL_ERROR   Nginx logs show random hex characters: 172.18.0.1 - - [14/Dec/2018:18:01:55 +0000] "\x16\x03\x01\x00\xDD\x01\x00\x00\xD9\x03\x03\xAB\xE1\xB3\x1F\xCE\x02\x02\xC5}q\xDFgd\xF1`\xC1m\x8E\x99\xCE' \x98\xDF\xDEEg\x8Fm\xED\x9F\xB1\x00\x00\x1C" 400 166 "-" "-" "-" 0.001 -   Any ideas what could I be doing wrong?  (/questions/tagged/ssl) (show questions tagged 'ssl') ssl  (/questions/tagged/nginx) (show questions tagged 'nginx') nginx  (/questions/tagged/webpack-dev-server) (show questions tagged 'webpack-dev-server') webpack-dev-server      (/q/53784876) (Short permalink to this question) Share  Share a link to this question     Copy link (https://creativecommons.org/licenses/by-sa/4.0/) (The current license for this post: CC BY-SA 4.0) CC BY-SA 4.0     (/posts/53784876/edit) () Improve this question  Follow (70:3:31e,16:ff70971440bc8103,10:1743963991,16:ed3944c7bf3fdcce,8:53784876,fe03d81711ab4c087346540ec8a41b6b7ae71cf88accb4e8ea32f382723e85b8)  Follow this question to receive notifications       (/posts/53784876/revisions) (show all edits to this post) edited (2018-12-14 18:26:29Z) Dec 14, 2018 at 18:26     Christopher Francisco     asked (2018-12-14 18:12:39Z) Dec 14, 2018 at 18:12   (/users/2184584/christopher-francisco) (Christopher Francisco's user avatar)    (/users/2184584/christopher-francisco) Christopher Francisco Christopher Francisco (reputation score 16,348) 16.3k (31 gold badges)  31  31 gold badges (109 silver badges)  109  109 silver badges (220 bronze badges)  220  220 bronze badges           (Use comments to ask for more information or suggest improvements. Avoid answering questions in comments.) Add a comment |  (Expand to show all comments on this post)          1 Answer 1   Sorted by:  (/questions/53784876/nginx-setting-up-ssl-with-existing-crt-key-and-ca-pem-files?answertab=scoredesc#tab-top) Reset to default   (scoredesc) Highest score (default)  (trending) Trending (recent votes count more)  (modifieddesc) Date modified (newest first)  (createdasc) Date created (oldest first)            This answer is useful  (70:3:31e,16:25574f0ce1cba341,10:1743963991,16:e857533c9e24a874,8:53785803,9e6d64a2d6dd9d754f44a55409ad18f29f663671a5eca989ae785d836e55bc05) 4  (This answer is not useful)    (70:3:31e,16:aa88a0f323b090bf,10:1743963991,16:ec6874edaffff32a,8:53785803,693c7e7608bdecfca2d18f57e258d652c6da8e85c12676e6da965db89eebe28e)      Save this answer.  (Loading when this answer was accepted…)     (/posts/53785803/timeline)    Show activity on this post.    You need to concatenate your certificate with CA for nginx: cp example.com.crt example.com.fullchain.pem
cat CA.pem >> example.com.fullchain.pem   and use this file in nginx config: ssl_certificate certs/example.com.fullchain.pem;     (/a/53785803) (Short permalink to this answer) Share  Share a link to this answer     Copy link (https://creativecommons.org/licenses/by-sa/4.0/) (The current license for this post: CC BY-SA 4.0) CC BY-SA 4.0     (/posts/53785803/edit) () Improve this answer  Follow (70:3:31e,16:74d5b86fc9304990,10:1743963991,16:8e58ca2e303d3032,8:53785803,88e4e91c7d6442a51a96288f323d818fdb2683dbbf254a363cc3e5098e88ece0)  Follow this answer to receive notifications       answered (2018-12-14 19:26:54Z) Dec 14, 2018 at 19:26   (/users/7121513/ivan-shatsky) (Ivan Shatsky's user avatar)    (/users/7121513/ivan-shatsky) Ivan Shatsky Ivan Shatsky (reputation score 15,762) 15.8k (2 gold badges)  2  2 gold badges (25 silver badges)  25  25 silver badges (51 bronze badges)  51  51 bronze badges        2   I actually ended up concatenating only the CA and the crt. But yeah it worked – (/users/2184584/christopher-francisco) (16,348 reputation) Christopher Francisco  Commented (2018-12-20 14:01:14Z, License: CC BY-SA 4.0) Dec 20, 2018 at 14:01        I think that is exactly what I tell you to do, I didn't mention a key file in my answer. Full path of concatenated file goes as ssl_sertificate parameter, full path of key file goes as ssl_certificate_key parameter. FYI, certbot from Let's Encrypt generates all of these files (key as privkey.pem, cert as cert.pem, CA as chain.pem, and concatenated cart+CA as fullchain.pem). – (/users/7121513/ivan-shatsky) (15,762 reputation) Ivan Shatsky  Commented (2018-12-20 14:14:49Z, License: CC BY-SA 4.0) Dec 20, 2018 at 14:14        (Use comments to ask for more information or suggest improvements. Avoid comments like “+1” or “thanks”.) 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