Как заставить Nginx работать с подкаталогами? [Nginx, Let's Encrypt, базовая аутентификация]

Что я хочу:

Я хочу установить Mautic в подпапку моего корневого веб-сайта. У меня есть домен https://example.com и я хочу, чтобы Mautic был доступен из https://example.com/mautic.

Что у меня есть:

У меня есть сервер с

Сервер Ubuntu 18.04
Nginx 1.14.0
PHP 7.2
Давайте зашифровать через Certbot
базовая аутентификация (apache2-utils)

Что я получаю:

Я хочу установить Mautic в подкаталог корневого каталога (в моем случае корневой веб-каталог: /var/www/example.com/html).

Однако когда я wget последний выпуск Mautic и unzip это к /var/www/example.com/html/mautic, а затем перехожу к https://example.com/mautic, он перенаправляется на https://example.com/mautic/index.php/install и возвращает 404 в веб-браузере.

Когда я curl https://example.com/mautic я получил

<html>
<head><title>301 Moved Permanently</title></head>
<body bgcolor="white">
<center><h1>301 Moved Permanently</h1></center>
<hr><center>nginx/1.14.0 (Ubuntu)</center>
</body>
</html>

Когда я curl https://example.com/mautic/ (Пожалуйста отметьте! Косая черта добавлена) я получаю

<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8" />
        <meta http-equiv="refresh" content="0;url=https://example.com/mautic/index.php/installer" />

        <title>Redirecting to https://example.com/mautic/index.php/installer</title>
    </head>
    <body>
        Redirecting to <a href="https://example.com/mautic/index.php/installer">https://example.com/mautic/index.php/installer</a>.
    </body>
</html>

Результат ls -l /var/www/example.com/html/

-rwxr-xr-x 1 root     root      612 Apr 16 08:48 index.nginx-debian.html*
drwxr-xr-x 8 www-data www-data 4096 Apr 16 08:56 mautic/

Это мое /etc/nginx/sites-enabled/example.com


server {
        root /var/www/example.com/html;
        index index.php index.html index.htm index.nginx-debian.html;
        server_name example.com;
        auth_basic "My custom death threat to all tresspassers.";
        auth_basic_user_file /etc/nginx/.htpasswd;

        location / {
                try_files $uri $uri/ =404;
        }

        location ~ \.php$ {
                include snippets/fastcgi-php.conf;
                fastcgi_pass unix:/var/run/php/php7.2-fpm.sock;
        }

        location ~ /\.ht {
                deny all;
        }

        #tried to play with subfolder configuration right here

        location /mautic {
        root /var/www/example.com/html;
        try_files $uri $uri/ /index.php$is_args$args;
                location ~ \.php$ {
                        include snippets/fastcgi-php.conf;
                        fastcgi_param SCRIPT_FILENAME $request_filename;
                        fastcgi_pass unix:/var/run/php/php7.2-fpm.sock;
                }
        }
        location @mautic {
                rewrite /mautic/(.*)$ /mautic/index.php?/$1 last;
        }


    listen 443 ssl; # managed by Certbot
    ssl_certificate /etc/letsencrypt/live/example.com/fullchain.pem; # managed by Certbot
    ssl_certificate_key /etc/letsencrypt/live/example.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 ($host = www.example.com) {
        rewrite (.*) https://example.com$request_uri;
    } # managed by Certbot


    if ($host = example.com) {
        return 301 https://$host$request_uri;
    } # managed by Certbot


        listen 80;
        server_name example.com www.example.com;
    return 404; # managed by Certbot

}

И есть phpinfo():

System  Linux MYNAME 4.15.0-47-generic #50-Ubuntu SMP Wed Mar 13 10:44:52 UTC 2019 x86_64
Build Date  Mar 22 2019 17:05:14
Server API  FPM/FastCGI
Virtual Directory Support   disabled
Configuration File (php.ini) Path   /etc/php/7.2/fpm
Loaded Configuration File   /etc/php/7.2/fpm/php.ini
Scan this dir for additional .ini files     /etc/php/7.2/fpm/conf.d
Additional .ini files parsed    /etc/php/7.2/fpm/conf.d/10-mysqlnd.ini, /etc/php/7.2/fpm/conf.d/10-opcache.ini, /etc/php/7.2/fpm/conf.d/10-pdo.ini, /etc/php/7.2/fpm/conf.d/15-xml.ini, /etc/php/7.2/fpm/conf.d/20-bz2.ini, /etc/php/7.2/fpm/conf.d/20-calendar.ini, /etc/php/7.2/fpm/conf.d/20-ctype.ini, /etc/php/7.2/fpm/conf.d/20-curl.ini, /etc/php/7.2/fpm/conf.d/20-dom.ini, /etc/php/7.2/fpm/conf.d/20-exif.ini, /etc/php/7.2/fpm/conf.d/20-fileinfo.ini, /etc/php/7.2/fpm/conf.d/20-ftp.ini, /etc/php/7.2/fpm/conf.d/20-gd.ini, /etc/php/7.2/fpm/conf.d/20-gettext.ini, /etc/php/7.2/fpm/conf.d/20-iconv.ini, /etc/php/7.2/fpm/conf.d/20-imap.ini, /etc/php/7.2/fpm/conf.d/20-intl.ini, /etc/php/7.2/fpm/conf.d/20-json.ini, /etc/php/7.2/fpm/conf.d/20-mbstring.ini, /etc/php/7.2/fpm/conf.d/20-mysqli.ini, /etc/php/7.2/fpm/conf.d/20-pdo_mysql.ini, /etc/php/7.2/fpm/conf.d/20-phar.ini, /etc/php/7.2/fpm/conf.d/20-posix.ini, /etc/php/7.2/fpm/conf.d/20-readline.ini, /etc/php/7.2/fpm/conf.d/20-shmop.ini, /etc/php/7.2/fpm/conf.d/20-simplexml.ini, /etc/php/7.2/fpm/conf.d/20-sockets.ini, /etc/php/7.2/fpm/conf.d/20-sysvmsg.ini, /etc/php/7.2/fpm/conf.d/20-sysvsem.ini, /etc/php/7.2/fpm/conf.d/20-sysvshm.ini, /etc/php/7.2/fpm/conf.d/20-tokenizer.ini, /etc/php/7.2/fpm/conf.d/20-wddx.ini, /etc/php/7.2/fpm/conf.d/20-xmlreader.ini, /etc/php/7.2/fpm/conf.d/20-xmlwriter.ini, /etc/php/7.2/fpm/conf.d/20-xsl.ini, /etc/php/7.2/fpm/conf.d/20-zip.ini
PHP API     20170718
PHP Extension   20170718
Zend Extension  320170718
Zend Extension Build    API320170718,NTS
PHP Extension Build     API20170718,NTS
Debug Build     no
Thread Safety   disabled
Zend Signal Handling    enabled
Zend Memory Manager     enabled
Zend Multibyte Support  provided by mbstring
IPv6 Support    enabled
DTrace Support  available, disabled
Registered PHP Streams  https, ftps, compress.zlib, php, file, glob, data, http, ftp, compress.bzip2, phar, zip
Registered Stream Socket Transports tcp, udp, unix, udg, ssl, tls, tlsv1.0, tlsv1.1, tlsv1.2
Registered Stream Filters   zlib.*, string.rot13, string.toupper, string.tolower, string.strip_tags, convert.*, consumed, dechunk, mcrypt.*, mdecrypt.*, bzip2.*, convert.iconv.*

Я понятия не имею, что делаю не так. Как заставить установщик Mautic работать во вложенной папке? Спасибо!

ОБНОВЛЕНИЕ 1

Nginx error.log

2019/04/16 14:18:10 [notice] 17193#17193: signal process started
2019/04/16 14:18:29 [notice] 17225#17225: signal process started
2019/04/16 15:46:08 [notice] 18855#18855: signal process started
2019/04/16 15:47:20 [notice] 18901#18901: signal process started
2019/04/16 15:52:37 [crit] 18902#18902: *30 SSL_do_handshake() failed (SSL: error:1417D18C:SSL routines:tls_process_client_hello:version too low) while SSL handshaking, client: 184.105.247.194, server: 0.0.0.0:443

и access.log

94.75.108.40 - user [16/Apr/2019:14:18:36 +0200] "GET /mautic/index.php/installer HTTP/1.1" 404 152 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:66.0) Gecko/20100101 Firefox/66.0"
94.75.108.40 - user [16/Apr/2019:14:18:36 +0200] "GET /mautic/index.php/installer HTTP/1.1" 404 152 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:66.0) Gecko/20100101 Firefox/66.0"
94.75.108.40 - user [16/Apr/2019:14:18:36 +0200] "GET /mautic/index.php/installer HTTP/1.1" 404 152 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:66.0) Gecko/20100101 Firefox/66.0"
94.75.108.40 - user [16/Apr/2019:14:18:36 +0200] "GET /mautic/index.php/installer HTTP/1.1" 404 152 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:66.0) Gecko/20100101 Firefox/66.0"
94.75.108.40 - user [16/Apr/2019:14:18:36 +0200] "GET /mautic/index.php/installer HTTP/1.1" 404 152 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:66.0) Gecko/20100101 Firefox/66.0"
my.server.ip.address - user [16/Apr/2019:14:19:26 +0200] "GET /mautic HTTP/1.1" 301 194 "-" "curl/7.58.0"
my.server.ip.address - user [16/Apr/2019:14:19:47 +0200] "GET / HTTP/1.1" 200 612 "-" "curl/7.58.0"
94.75.108.40 - user [16/Apr/2019:14:20:55 +0200] "GET /mautic/index.php/installer HTTP/1.1" 404 152 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:66.0) Gecko/20100101 Firefox/66.0"
94.75.108.40 - user [16/Apr/2019:14:20:55 +0200] "GET /favicon.ico HTTP/1.1" 404 152 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:66.0) Gecko/20100101 Firefox/66.0"
171.13.14.46 - - [16/Apr/2019:14:38:22 +0200] "CONNECT 133.130.126.119:43 HTTP/1.1" 400 182 "-" "-"
94.75.108.40 - user [16/Apr/2019:14:59:50 +0200] "GET /mautic/ HTTP/1.1" 302 424 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:66.0) Gecko/20100101 Firefox/66.0"
94.75.108.40 - user [16/Apr/2019:14:59:50 +0200] "GET /mautic/index.php/installer HTTP/1.1" 404 152 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:66.0) Gecko/20100101 Firefox/66.0"
94.75.108.40 - user [16/Apr/2019:14:59:50 +0200] "GET /favicon.ico HTTP/1.1" 404 152 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:66.0) Gecko/20100101 Firefox/66.0"
my.server.ip.address - user [16/Apr/2019:15:00:13 +0200] "GET /mautic HTTP/1.1" 301 194 "-" "curl/7.58.0"
my.server.ip.address - user [16/Apr/2019:15:00:22 +0200] "GET /mautic/ HTTP/1.1" 302 424 "-" "curl/7.58.0"
my.server.ip.address - user [16/Apr/2019:15:00:33 +0200] "GET /mautic/index.php HTTP/1.1" 302 464 "-" "curl/7.58.0"
94.75.108.40 - user [16/Apr/2019:15:26:58 +0200] "GET /info.php HTTP/1.1" 200 26052 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:66.0) Gecko/20100101 Firefox/66.0"
94.75.108.40 - user [16/Apr/2019:15:26:58 +0200] "GET /favicon.ico HTTP/1.1" 404 152 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:66.0) Gecko/20100101 Firefox/66.0"
94.75.108.40 - user [16/Apr/2019:15:46:12 +0200] "GET / HTTP/1.1" 404 152 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:66.0) Gecko/20100101 Firefox/66.0"
94.75.108.40 - user [16/Apr/2019:15:46:12 +0200] "GET /favicon.ico HTTP/1.1" 404 152 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:66.0) Gecko/20100101 Firefox/66.0"
94.75.108.40 - user [16/Apr/2019:15:46:16 +0200] "GET /mautic/ HTTP/1.1" 302 424 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:66.0) Gecko/20100101 Firefox/66.0"
94.75.108.40 - user [16/Apr/2019:15:46:16 +0200] "GET /mautic/index.php/installer HTTP/1.1" 404 152 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:66.0) Gecko/20100101 Firefox/66.0"
94.75.108.40 - user [16/Apr/2019:15:46:21 +0200] "GET /mautic/index.php/installer HTTP/1.1" 404 152 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:66.0) Gecko/20100101 Firefox/66.0"
94.75.108.40 - user [16/Apr/2019:15:46:25 +0200] "GET / HTTP/1.1" 404 152 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:66.0) Gecko/20100101 Firefox/66.0"
94.75.108.40 - user [16/Apr/2019:15:47:23 +0200] "GET / HTTP/1.1" 200 396 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:66.0) Gecko/20100101 Firefox/66.0"
94.75.108.40 - - [16/Apr/2019:15:48:29 +0200] "GET /mautic/ HTTP/1.1" 401 204 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:66.0) Gecko/20100101 Firefox/66.0"
94.75.108.40 - - [16/Apr/2019:15:48:29 +0200] "GET /favicon.ico HTTP/1.1" 401 204 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:66.0) Gecko/20100101 Firefox/66.0"

ОБНОВЛЕНИЕ 2

Просто для тестирования я пробовал кучу других самодостаточных приложений (например, InfiniteWP), и все они работают нормально.

Ну и шутка. В Nginx error.log Я наконец нашел ответ:

я не chmod 777 папка, которая требовалась для процесса установки. : D Какая неудача.