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如何修复 Netbox nginx Invalid HTTP_HOST header: 'localhost:13031'. You may need to add 'localhost' to ALLOWED_HOSTS.

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问题：

尝试在 nginx 反向代理后面操作 netbox 时，你看到以下日志消息：

netbox_invalid_host.txt
netbox          | Invalid HTTP_HOST header: 'localhost:13031'. You may need to add 'localhost' to ALLOWED_HOSTS.
netbox          | Bad Request: /

解决方案

使用以下命令在代理请求中设置 Host 头

netbox_proxy_example.conf
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_set_header X-Forwarded-Host $server_name;

以便告诉 Netbox 最初请求的是哪个主机（否则，它将假设为 localhost）。

以下 location 配置与 Netbox 配合良好：

netbox_location.conf
location / {
    proxy_pass http://localhost:13031/;
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "Upgrade";
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-Proto $scheme;
    proxy_set_header X-Forwarded-Host $server_name;
    proxy_redirect default;
}

完整配置示例

netbox_full_server.conf
server {
    server_name  netbox.mydomain.com;

    location / {
        proxy_pass http://localhost:13031/;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "Upgrade";
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_set_header X-Forwarded-Host $server_name;
        proxy_redirect default;
    }

    listen [::]:443 ssl; # managed by Certbot
    ssl_certificate /etc/letsencrypt/live/mydomain.com/fullchain.pem; # managed by Certbot
    ssl_certificate_key /etc/letsencrypt/live/mydomain.com/privkey.pem; # managed by Certbot
    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot


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

    server_name  netbox.mydomain.com;

    listen [::]:80; # managed by Certbot
    return 404; # managed by Certbot
}
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