certbot –nginx generates PR_END_OF_FILE_ERROR

a Ubuntu 16.04.6 LTS VPS running nginx is presently bricked in terms of serving pages through port 443. This happened unexpectedly, I assume when a renewal kicked in automatically.

Following are twice replicated steps.

I removed all site definitions in sites-enabled and reduced the server to its simplest expression: one application in http mode only. The output of nginx -T is at bottom. the unencrypted pages serve as expected.

I then ran sudo certbot --nginx and selected 1 for the only 3rd level domain available to nginx

Which names would you like to activate HTTPS for?
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
1: hf.iwant2go2.com
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Select the appropriate numbers separated by commas and/or spaces, or leave input
blank to select all options shown (Enter 'c' to cancel): 1

and installed new certificate, the choosing option 2 to redirect port 80 calls to port 443.

Select the appropriate number [1-2] then [enter] (press 'c' to cancel): 2

The dialog indicates a successful creation and installation. The differences with the new nginx -T output are as follows. the default site was appended with:

listen 443 ssl; # managed by Certbot
ssl_certificate /etc/letsencrypt/live/hf.iwant2go2.com/fullchain.pem; # managed by Certbot
ssl_certificate_key /etc/letsencrypt/live/hf.iwant2go2.com/privkey.pem; # managed by Certbot
include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot
server {
    if ($host = hf.iwant2go2.com) {
        return 301 https://$host$request_uri;
    } # managed by Certbot

        server_name hf.iwant2go2.com;
    listen 80;
    return 404; # managed by Certbot

}

and naturally, the configuration file was created:

# configuration file /etc/letsencrypt/options-ssl-nginx.conf:
# This file contains important security parameters. If you modify this file
# manually, Certbot will be unable to automatically provide future security
# updates. Instead, Certbot will print and log an error message with a path to
# the up-to-date file that you will need to refer to when manually updating
# this file.

ssl_session_cache shared:le_nginx_SSL:1m;
ssl_session_timeout 1440m;

ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_prefer_server_ciphers on;

ssl_ciphers "ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES256-SHA:ECDHE-ECDSA-DES-CBC3-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:DES-CBC3-SHA:!DSS";

The suggestion, after successful processing, to [check with SSLlabs] (https://www.ssllabs.com/ssltest/analyze.html?d=hf.iwant2go2.com) confirms the failure, wheras the browser responds with:

An error occurred during a connection to hf.iwant2go2.com. PR_CONNECT_RESET_ERROR

This is therefore a direct bug in the certbot cert creation process, either in its own operation or interacting with some other object.

Is there anything mistaken with the nginx configuration?

Initial nginx -T output

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:
user www-data;
worker_processes auto;
pid /run/nginx.pid;
include /etc/nginx/modules-enabled/*.conf;

events {
    worker_connections 768;
    # multi_accept on;
}

http {

    ##
    # Basic Settings
    ##

    sendfile on;
    tcp_nopush on;
    tcp_nodelay on;
    keepalive_timeout 130s;
        client_max_body_size 10M;
    types_hash_max_size 2048;
    # server_tokens off;
        ## Block spammers and other unwanted visitors  ##
        include blockips.conf;

    # server_names_hash_bucket_size 64;
    # server_name_in_redirect off;

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

    ##
    # SSL Settings
    ##

    ssl_protocols TLSv1 TLSv1.1 TLSv1.2; # Dropping SSLv3, ref: POODLE
    ssl_prefer_server_ciphers on;
        ssl_session_cache shared:SSL:10m;

    ##
    # Logging Settings
    ##

    access_log /var/log/nginx/access.log;
    error_log /var/log/nginx/error.log;

    ##
    # Gzip Settings
    ##

    gzip on;

    # gzip_vary on;
    # gzip_proxied any;
    # gzip_comp_level 6;
    # gzip_buffers 16 8k;
    # gzip_http_version 1.1;
    # gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;

    ##
    # Virtual Host Configs
    ##

    include /etc/nginx/conf.d/*.conf;
    include /etc/nginx/sites-enabled/*;

# Security headers
        add_header X-XSS-Protection "1; mode=block";
        add_header X-Frame-Options "SAMEORIGIN";

        server {
            listen 80 default_server;
            listen 443 default_server;
            return 444;
        }
}

#mail {
#   # See sample authentication script at:
#   # http://wiki.nginx.org/ImapAuthenticateWithApachePhpScript
#
#   # auth_http localhost/auth.php;
#   # pop3_capabilities "TOP" "USER";
#   # imap_capabilities "IMAP4rev1" "UIDPLUS";
#
#   server {
#       listen     localhost:110;
#       protocol   pop3;
#       proxy      on;
#   }
#
#   server {
#       listen     localhost:143;
#       protocol   imap;
#       proxy      on;
#   }
#}

# configuration file /etc/nginx/modules-enabled/10-mod-http-ndk.conf:
load_module modules/ndk_http_module.so;

# configuration file /etc/nginx/modules-enabled/50-mod-http-auth-pam.conf:
load_module modules/ngx_http_auth_pam_module.so;

# configuration file /etc/nginx/modules-enabled/50-mod-http-cache-purge.conf:
load_module modules/ngx_http_cache_purge_module.so;

# configuration file /etc/nginx/modules-enabled/50-mod-http-dav-ext.conf:
load_module modules/ngx_http_dav_ext_module.so;

# configuration file /etc/nginx/modules-enabled/50-mod-http-echo.conf:
load_module modules/ngx_http_echo_module.so;

# configuration file /etc/nginx/modules-enabled/50-mod-http-fancyindex.conf:
load_module modules/ngx_http_fancyindex_module.so;

# configuration file /etc/nginx/modules-enabled/50-mod-http-geoip.conf:
load_module modules/ngx_http_geoip_module.so;

# configuration file /etc/nginx/modules-enabled/50-mod-http-headers-more-filter.conf:
load_module modules/ngx_http_headers_more_filter_module.so;

# configuration file /etc/nginx/modules-enabled/50-mod-http-image-filter.conf:
load_module modules/ngx_http_image_filter_module.so;

# configuration file /etc/nginx/modules-enabled/50-mod-http-lua.conf:
load_module modules/ngx_http_lua_module.so;

# configuration file /etc/nginx/modules-enabled/50-mod-http-passenger.conf:
load_module /usr/lib/nginx/modules/ngx_http_passenger_module.so;

# configuration file /etc/nginx/modules-enabled/50-mod-http-perl.conf:
load_module modules/ngx_http_perl_module.so;

# configuration file /etc/nginx/modules-enabled/50-mod-http-subs-filter.conf:
load_module modules/ngx_http_subs_filter_module.so;

# configuration file /etc/nginx/modules-enabled/50-mod-http-uploadprogress.conf:
load_module modules/ngx_http_uploadprogress_module.so;

# configuration file /etc/nginx/modules-enabled/50-mod-http-upstream-fair.conf:
load_module modules/ngx_http_upstream_fair_module.so;

# configuration file /etc/nginx/modules-enabled/50-mod-http-xslt-filter.conf:
load_module modules/ngx_http_xslt_filter_module.so;

# configuration file /etc/nginx/modules-enabled/50-mod-mail.conf:
load_module modules/ngx_mail_module.so;

# configuration file /etc/nginx/modules-enabled/50-mod-nchan.conf:
load_module modules/ngx_nchan_module.so;

# configuration file /etc/nginx/modules-enabled/50-mod-stream.conf:
load_module modules/ngx_stream_module.so;

# configuration file /etc/nginx/blockips.conf:
deny 185.213.20.172;
deny 104.129.18.6;
deny 185.224.91.73;
deny 176.126.83.15;
deny 69.49.102.227;
deny 60.191.38.77;
deny 209.17.96.66;
deny 80.82.77.139;
deny 184.105.247.194;
deny 184.105.247.195;
deny 104.131.133.207;
deny 80.82.77.33;
deny 151.239.67.109;
deny 77.246.234.70;
deny 213.85.3.11;
deny 45.227.253.36;
deny 185.82.216.97;
deny 185.222.211.54;
deny 82.118.242.240;
deny 97.177.247.162;
deny 118.138.101.236;
deny 213.183.146.74;
deny 5.188.211.15;
deny 85.93.20.58;
deny 203.172.211.4;
deny 77.161.231.173;
deny 35.175.132.238;
deny 45.227.255.149;
deny 162.62.26.7;

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

    application/font-woff                 woff;
    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.ms-excel              xls;
    application/vnd.ms-fontobject         eot;
    application/vnd.ms-powerpoint         ppt;
    application/vnd.wap.wmlc              wmlc;
    application/vnd.google-earth.kml+xml  kml;
    application/vnd.google-earth.kmz      kmz;
    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;

    application/vnd.openxmlformats-officedocument.wordprocessingml.document    docx;
    application/vnd.openxmlformats-officedocument.spreadsheetml.sheet          xlsx;
    application/vnd.openxmlformats-officedocument.presentationml.presentation  pptx;

    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;
}

# configuration file /etc/nginx/conf.d/mod-http-passenger.conf:
### Begin automatically installed Phusion Passenger config snippet ###
passenger_ruby /home/deploy/.rbenv/shims/ruby; # If you use rbenv
passenger_root /usr/lib/ruby/vendor_ruby/phusion_passenger/locations.ini;
# passenger_ruby /usr/bin/passenger_free_ruby;
### End automatically installed Phusion Passenger config snippet ###

# configuration file /etc/nginx/sites-enabled/default:
server {
        # Make site accessible from http://localhost/
        server_name hf.iwant2go2.com;
        rails_env         development;
        root              /home/deploy/hf/current/public;

        # redirect server error pages to the static page /50x.html
        error_page 404 /404.html;
          location  /404.html {
        }
        error_page   500 502 503 504  /50x.html;
        location / {
           passenger_enabled on;
        }

        location = /50x.html {
            root   html;
        }
        location ~ /(wp-content|solr|jsonws|mifs|wp-includes|login.asp)/ {
            return 404;
        }
        location ~ \.php$ {
            return 404;
        }
        location ~ \.aspx$ {
            return 404;
        }
        location ~ \.env$ {
            return 404;
        }
        location ~ \.production$ {
            return 404;
        }
        location ~ \.git$ {
            return 404;
        }

}


Read more here: https://stackoverflow.com/questions/64889800/certbot-nginx-generates-pr-end-of-file-error

Content Attribution

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