Nginx Ajenti Working reverse proxy

config.json

=== /etc/ajenti/config.json ===

{
    "users": {
        "root": {
            "configs": {
                "ajenti.plugins.notepad.notepad.Notepad": "{\"bookmarks\": [], \"root\": \"/\"}", 
                "ajenti.plugins.terminal.main.Terminals": "{\"shell\": \"sh -c $SHELL || bash\"}", 
                "ajenti.plugins.logs.main.Logs": "{\"root\": \"/var/log\"}", 
                "ajenti.plugins.dashboard.dash.Dash": "{\"widgets\": [{\"index\": 0, \"config\": null, \"container\": \"1\", \"class\": \"ajenti.plugins.sensors.memory.MemoryWidget\"}, {\"index\": 1, \"config\": null, \"container\": \"1\", \"class\": \"ajenti.plugins.sensors.memory.SwapWidget\"}, {\"index\": 2, \"config\": null, \"container\": \"1\", \"class\": \"ajenti.plugins.dashboard.welcome.WelcomeWidget\"}, {\"index\": 0, \"config\": null, \"container\": \"0\", \"class\": \"ajenti.plugins.sensors.uptime.UptimeWidget\"}, {\"index\": 1, \"config\": null, \"container\": \"0\", \"class\": \"ajenti.plugins.power.power.PowerWidget\"}, {\"index\": 2, \"config\": null, \"container\": \"0\", \"class\": \"ajenti.plugins.sensors.cpu.CPUWidget\"}]}", 
                "ajenti.plugins.mysql.api.MySQLDB": "{\"password\": \"mysql_root_password_here\", \"user\": \"root\", \"hostname\": \"localhost\"}", 
                "ajenti.plugins.fm.fm.FileManager": "{\"start\": \"/\", \"root\": \"/\"}", 
                "ajenti.plugins.mongo.api.MongoDB": "{\"url\": \"mongodb://localhost:27017/\"}", 
                "ajenti.plugins.tasks.manager.TaskManager": "{\"task_definitions\": []}", 
                "ajenti.users.UserManager": "{\"sync-provider\": \"\"}"
            }, 
            "password": "sha512|reallylongstringhere", 
            "email": "your@email.address.here", 
            "permissions": []
        }
    }, 
    "language": "", 
    "bind": {
        "host": "/var/run/ajenti.sock", 
        "port": 8000
    }, 
    "enable_feedback": true, 
    "ssl": {
        "enable": false, 
        "certificate_path": "/path/to/your/ajenti.pem"
    }, 
    "authentication": true, 
    "installation_id": 219024
}

panel.example.com.conf

=== /etc/nginx.custom.d/panel.example.com.conf ===

server {
    listen 80;
    server_name    panel.example.com;
    add_header Strict-Transport-Security max-age=2592000;
    rewrite ^/.*$ https://panel.example.com/ permanent;
}

server {
    listen        443;
    server_name   panel.example.com;
    client_max_body_size 200m;
    access_log    /var/log/nginx/ajenti-access.log;
    error_log    /var/log/nginx/ajenti-error.log;
    ssl on;
    ssl_certificate /path/to/your/cert/fullchain.pem;
    ssl_certificate_key /path/to/your/cert//privkey.pem;
    keepalive_timeout    60;
    ssl_ciphers            HIGH:!ADH:!MD5;
    ssl_protocols            SSLv3 TLSv1;
    ssl_prefer_server_ciphers    on;
    proxy_buffers 16 64k;
    proxy_buffer_size 128k;
    location /ajenti {
        rewrite (/ajenti)$ / break;
        rewrite /ajenti/(.*) /$1 break;
        proxy_pass              http://unix:/var/run/ajenti.sock;
        proxy_redirect /        /ajenti/;
        proxy_set_header        Host             $host;
        proxy_set_header        X-Forwarded-For  $proxy_add_x_forwarded_for;
        proxy_http_version      1.1;
        proxy_set_header        Upgrade          $http_upgrade;
        proxy_set_header        Connection       $http_connection;
        proxy_set_header        Origin           http://$host;
    }
}