certbot.errors.MisconfigurationError: nginx restart failed

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1

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), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.

My domain is: app.adfontesmedia.com

I ran this command: sudo certbot --nginx

It produced this output:

Requesting a certificate for app.adfontesmedia.com
Encountered exception during recovery: certbot.errors.MisconfigurationError: nginx restart faile
d:
nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
nginx: [emerg] bind() to [::]:80 failed (98: Address already in use)
nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
nginx: [emerg] bind() to [::]:80 failed (98: Address already in use)
nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
nginx: [emerg] bind() to [::]:80 failed (98: Address already in use)
nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
nginx: [emerg] bind() to [::]:80 failed (98: Address already in use)
nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
nginx: [emerg] bind() to [::]:80 failed (98: Address already in use)
nginx: [emerg] still could not bind()
nginx restart failed:
nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
nginx: [emerg] bind() to [::]:80 failed (98: Address already in use)
nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
nginx: [emerg] bind() to [::]:80 failed (98: Address already in use)
nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
nginx: [emerg] bind() to [::]:80 failed (98: Address already in use)
nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
nginx: [emerg] bind() to [::]:80 failed (98: Address already in use)
nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
nginx: [emerg] bind() to [::]:80 failed (98: Address already in use)
nginx: [emerg] still could not bind()

Ask for help or search for solutions at https://community.letsencrypt.org. See the logfile /var/
log/letsencrypt/letsencrypt.log or re-run Certbot with -v for more details.

My web server is (include version): nginx/1.20.0

The operating system my web server runs on is (include version): Amazon Linux 2

My hosting provider, if applicable, is: AWS EC2

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

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 1.19.0

2

Hi @unkusrpro, welcome to the LE community forum :slight_smile:

Are you using apache or nginx or both ?

I see:

curl -Iki http://app.adfontesmedia.com/
HTTP/1.1 403 Forbidden
Date: Thu, 09 Sep 2021 23:52:54 GMT
Server: Apache/2.4.48 () OpenSSL/1.0.2k-fips

and you showed:

1 Like
3

I just want to use Nginx. I tried AWS guide (Extending Amazon Linux 2 with EPEL and Let’s Encrypt | AWS Compute Blog) for Apache and don't know if it's still in effect.

4

Okay after you mentioned I checked again and somehow apache server was running and not the nginx. So I stopped apache and ran command sudo certbot --nginx and it produced following results.

Saving debug log to /var/log/letsencrypt/letsencrypt.log
Please enter the domain name(s) you would like on your certificate (comma and/or
space separated) (Enter 'c' to cancel): app.adfontesmedia.com
Requesting a certificate for app.adfontesmedia.com

Successfully received certificate.
Certificate is saved at: /etc/letsencrypt/live/app.adfontesmedia.com/fullchain.pem
Key is saved at: /etc/letsencrypt/live/app.adfontesmedia.com/privkey.pem
This certificate expires on 2021-12-08.
These files will be updated when the certificate renews.

Deploying certificate
Could not install certificate

NEXT STEPS:

  • The certificate was saved, but could not be installed (installer: nginx). After fixing the error shown below, try installing it ag
    ain by running:
    certbot install --cert-name app.adfontesmedia.com
  • The certificate will need to be renewed before it expires. Certbot can automatically renew the certificate in the background, but
    you may need to take steps to enable that functionality. See User Guide — Certbot 2.7.0.dev0 documentation for instructions.

Could not automatically find a matching server block for app.adfontesmedia.com. Set the server_name directive to use the Nginx ins
taller.
Ask for help or search for solutions at https://community.letsencrypt.org. See the logfile /var/log/letsencrypt/letsencrypt.log or r
e-run Certbot with -v for more details.

5

I updated server_name for nginx.config listening on port 443 with app.adfontesmedia.com. Checked director for /etc/pki/nginx/ but No such file or directory.

ran sudo certbot --nginx again. Got following output.

Saving debug log to /var/log/letsencrypt/letsencrypt.log
Error while running nginx -c /etc/nginx/nginx.conf -t.

nginx: [emerg] cannot load certificate "/etc/pki/nginx/server.crt": BIO_new_file() failed (SSL: error:02001002:system library:fopen:
No such file or directory:fopen('/etc/pki/nginx/server.crt','r') error:2006D080:BIO routines:BIO_new_file:no such file)
nginx: configuration file /etc/nginx/nginx.conf test failed

The nginx plugin is not working; there may be problems with your existing configuration.
The error was: MisconfigurationError('Error while running nginx -c /etc/nginx/nginx.conf -t.\n\nnginx: [emerg] cannot load certifica
te "/etc/pki/nginx/server.crt": BIO_new_file() failed (SSL: error:02001002:system library:fopen:No such file or directory:fopen('/e
tc/pki/nginx/server.crt','r') error:2006D080:BIO routines:BIO_new_file:no such file)\nnginx: configuration file /etc/nginx/nginx.
conf test failed\n')

While running sudo certbot install --cert-name app.adfontesmedia.com got following output.

usage:
certbot [SUBCOMMAND] [options] [-d DOMAIN] [-d DOMAIN] ...

Certbot can obtain and install HTTPS/TLS/SSL certificates. By default,
it will attempt to use a webserver both for obtaining and installing the
certificate.
certbot: error: unrecognized arguments: --cert-name app.adfontesmedia.com

6

I don't think install is a valid parameter option for certbot.
Perhaps you are thinking of the --reinstall option.

Please show the file you updated and also show the output of:
sudo nginx -T

Also, if you are not going to use apache you should just uninstall it.

7

$ cat /etc/nginx/nginx.conf

# For more information on configuration, see:
#   * Official English Documentation: http://nginx.org/en/docs/
#   * Official Russian Documentation: http://nginx.org/ru/docs/

user nginx;
worker_processes auto;
error_log /var/log/nginx/error.log;
pid /run/nginx.pid;

# Load dynamic modules. See /usr/share/doc/nginx/README.dynamic.
include /usr/share/nginx/modules/*.conf;

events {
    worker_connections 1024;
}

http {
    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';

    access_log  /var/log/nginx/access.log  main;

    sendfile            on;
    tcp_nopush          on;
    tcp_nodelay         on;
    keepalive_timeout   65;
    types_hash_max_size 4096;

    include             /etc/nginx/mime.types;
    default_type        application/octet-stream;

    # Load modular configuration files from the /etc/nginx/conf.d directory.
    # See http://nginx.org/en/docs/ngx_core_module.html#include
    # for more information.
    include /etc/nginx/conf.d/*.conf;

    server {
        listen       80;
        listen       [::]:80;
        server_name  _;
        root         /usr/share/nginx/html;

        # Load configuration files for the default server block.
        include /etc/nginx/default.d/*.conf;

        error_page 404 /404.html;
        location = /404.html {
        }

        error_page 500 502 503 504 /50x.html;
        location = /50x.html {
        }
    }

# Settings for a TLS enabled server.

    server {
        listen       443 ssl http2;
        listen       [::]:443 ssl http2;
        server_name  app.adfontesmedia.com;
        root         /usr/share/nginx/html;

        ssl_certificate "/etc/pki/nginx/server.crt";
        ssl_certificate_key "/etc/pki/nginx/private/server.key";
        ssl_session_cache shared:SSL:1m;
        ssl_session_timeout  10m;
        ssl_ciphers PROFILE=SYSTEM;
        ssl_prefer_server_ciphers on;

        # Load configuration files for the default server block.
        include /etc/nginx/default.d/*.conf;

        error_page 404 /404.html;
            location = /40x.html {
        }

        error_page 500 502 503 504 /50x.html;
            location = /50x.html {
        }
    }

}

$ sudo nginx -T

nginx: [emerg] cannot load certificate "/etc/pki/nginx/server.crt": BIO_new_file() failed (SSL: error:02001002:system library:fopen:No such file or directory:fopen('/etc/pki/nginx/server.crt','r') error:2006D080:BIO routines:BIO_new_file:no such file)

nginx: configuration file /etc/nginx/nginx.conf test failed
8

You can remove this entire server section (up until the last right brace) from the nginx.conf file:

Then retry and show the output of:
sudo nginx -T

9

I commented server section mentioned above.

$ sudo nginx -T

nginx: [emerg] cannot load certificate "/etc/pki/nginx/server.crt": BIO_new_file() failed (SSL: error:02001002:system library:fopen:No such file or directory:fopen('/etc/pki/nginx/server.crt','r') error:2006D080:BIO routines:BIO_new_file:no such file)
nginx: configuration file /etc/nginx/nginx.conf test failed
[ec2-user@server ~]$ sudo nano /etc/nginx/nginx.conf
[ec2-user@server ~]$ sudo nginx -T
nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
nginx: configuration file /etc/nginx/nginx.conf test is successful

configuration file /etc/nginx/nginx.conf:

For more information on configuration, see:

* Official English Documentation: nginx documentation

* Official Russian Documentation: nginx: документация

user nginx;
worker_processes auto;
error_log /var/log/nginx/error.log;
pid /run/nginx.pid;

Load dynamic modules. See /usr/share/doc/nginx/README.dynamic.

include /usr/share/nginx/modules/*.conf;

events {
worker_connections 1024;
}

http {
log_format main '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';

access_log  /var/log/nginx/access.log  main;

sendfile            on;
tcp_nopush          on;
tcp_nodelay         on;
keepalive_timeout   65;
types_hash_max_size 4096;

include             /etc/nginx/mime.types;
default_type        application/octet-stream;

# Load modular configuration files from the /etc/nginx/conf.d directory.
# See http://nginx.org/en/docs/ngx_core_module.html#include
# for more information.
include /etc/nginx/conf.d/*.conf;

server {
    listen       80;
    listen       [::]:80;
    server_name  _;
    root         /usr/share/nginx/html;

    # Load configuration files for the default server block.
    include /etc/nginx/default.d/*.conf;

    error_page 404 /404.html;
    location = /404.html {
    }

    error_page 500 502 503 504 /50x.html;
    location = /50x.html {
    }
}

Settings for a TLS enabled server.

server {

listen 443 ssl http2;

listen [::]:443 ssl http2;

server_name app.adfontesmedia.com;

root /usr/share/nginx/html;

ssl_certificate "/etc/pki/nginx/server.crt";

ssl_certificate_key "/etc/pki/nginx/private/server.key";

ssl_session_cache shared:SSL:1m;

ssl_session_timeout 10m;

ssl_ciphers PROFILE=SYSTEM;

ssl_prefer_server_ciphers on;

# Load configuration files for the default server block.

include /etc/nginx/default.d/*.conf;

error_page 404 /404.html;

location = /40x.html {

}

error_page 500 502 503 504 /50x.html;

location = /50x.html {

}

}

}

configuration file /etc/nginx/mime.types:

types {
text/html html htm shtml;
text/css css;
text/xml xml;
image/gif gif;
image/jpeg jpeg jpg;
application/javascript js;
application/atom+xml atom;
application/rss+xml rss;

text/mathml                                      mml;
text/plain                                       txt;
text/vnd.sun.j2me.app-descriptor                 jad;
text/vnd.wap.wml                                 wml;
text/x-component                                 htc;

image/png                                        png;
image/svg+xml                                    svg svgz;
image/tiff                                       tif tiff;
image/vnd.wap.wbmp                               wbmp;
image/webp                                       webp;
image/x-icon                                     ico;
image/x-jng                                      jng;
image/x-ms-bmp                                   bmp;

font/woff                                        woff;
font/woff2                                       woff2;

application/java-archive                         jar war ear;
application/json                                 json;
application/mac-binhex40                         hqx;
application/msword                               doc;
application/pdf                                  pdf;
application/postscript                           ps eps ai;
application/rtf                                  rtf;
application/vnd.apple.mpegurl                    m3u8;
application/vnd.google-earth.kml+xml             kml;
application/vnd.google-earth.kmz                 kmz;
application/vnd.ms-excel                         xls;
application/vnd.ms-fontobject                    eot;
application/vnd.ms-powerpoint                    ppt;
application/vnd.oasis.opendocument.graphics      odg;
application/vnd.oasis.opendocument.presentation  odp;
application/vnd.oasis.opendocument.spreadsheet   ods;
application/vnd.oasis.opendocument.text          odt;
application/vnd.openxmlformats-officedocument.presentationml.presentation
                                                 pptx;
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
                                                 xlsx;
application/vnd.openxmlformats-officedocument.wordprocessingml.document
                                                 docx;
application/vnd.wap.wmlc                         wmlc;
application/x-7z-compressed                      7z;
application/x-cocoa                              cco;
application/x-java-archive-diff                  jardiff;
application/x-java-jnlp-file                     jnlp;
application/x-makeself                           run;
application/x-perl                               pl pm;
application/x-pilot                              prc pdb;
application/x-rar-compressed                     rar;
application/x-redhat-package-manager             rpm;
application/x-sea                                sea;
application/x-shockwave-flash                    swf;
application/x-stuffit                            sit;
application/x-tcl                                tcl tk;
application/x-x509-ca-cert                       der pem crt;
application/x-xpinstall                          xpi;
application/xhtml+xml                            xhtml;
application/xspf+xml                             xspf;
application/zip                                  zip;

application/octet-stream                         bin exe dll;
application/octet-stream                         deb;
application/octet-stream                         dmg;
application/octet-stream                         iso img;
application/octet-stream                         msi msp msm;

audio/midi                                       mid midi kar;
audio/mpeg                                       mp3;
audio/ogg                                        ogg;
audio/x-m4a                                      m4a;
audio/x-realaudio                                ra;

video/3gpp                                       3gpp 3gp;
video/mp2t                                       ts;
video/mp4                                        mp4;
video/mpeg                                       mpeg mpg;
video/quicktime                                  mov;
video/webm                                       webm;
video/x-flv                                      flv;
video/x-m4v                                      m4v;
video/x-mng                                      mng;
video/x-ms-asf                                   asx asf;
video/x-ms-wmv                                   wmv;
video/x-msvideo                                  avi;

}

10

I updated nginx.conf server with port 80 server_name to be app.adfontesmedia.com and ran sudo certbot --nginx again. It worked perfectly and now I have SSL on my domain. Thank you @rg305 for your help.

I kept server with port 443 to be commented before running command.

1 Like
11

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