nginx Connection refused

`nginx: Connection refused` 错误通常意味着你尝试连接的 Nginx 服务器没有在预期的端口上监听，或者 Nginx 没有正确运行。这可以由几个不同的原因引起，下面是一些常见的排查步骤：

1. 确认 Nginx 是否正在运行：你可以使用系统服务命令（如 `systemctl status nginx` 或 `service nginx status`）来检查 Nginx 服务的状态。

2. 检查端口监听情况：可以使用 `netstat -anp | grep nginx` 或 `ss -anp | grep nginx` 命令来查看 Nginx 是否在预期端口上监听。如果没有看到 Nginx 正在监听端口，可能是因为配置文件有误或者 Nginx 没有正确启动。

3. 检查 Nginx 配置文件：确认 Nginx 的配置文件（通常是 `/etc/nginx/nginx.conf` 和 `/etc/nginx/sites-available/*`）中定义的服务器块（server block）的监听指令（`listen`）是否正确配置。

4. 检查防火墙设置：如果服务器上有防火墙运行，确保 Nginx 所监听的端口没有被防火墙规则阻止。

5. 重启 Nginx 服务：如果进行了配置更改或者怀疑服务状态有问题，尝试重启 Nginx 服务。通常可以使用 `systemctl restart nginx` 或 `service nginx restart` 命令。

相关问题

nginx connection refused

As an AI language model, I cannot access your server logs or configurations to determine the root cause of the "nginx connection refused" error. However, this error usually occurs when the nginx server is unable to establish a connection with the upstream server or the application server.

Here are some possible reasons why you may encounter the "nginx connection refused" error:

1. The upstream server or application server is down or not responding.

2. The firewall or network settings are blocking the connection between the nginx server and the upstream server.

3. The nginx server is not configured to listen on the correct port.

4. The upstream server or application server is not configured to accept connections from the nginx server.

5. The upstream server or application server is overloaded or experiencing high traffic.

To resolve the "nginx connection refused" error, you may need to perform the following troubleshooting steps:

1. Check the status of the upstream server or application server and ensure that it is running.

2. Check the network settings and firewall rules to ensure that the nginx server is allowed to connect to the upstream server.

3. Check the nginx configuration file and ensure that it is configured to listen on the correct port.

4. Check the upstream server or application server configuration and ensure that it is configured to accept connections from the nginx server.

5. If the upstream server or application server is overloaded, you may need to optimize its performance or add more resources to handle the traffic.

If you are still unable to resolve the error, you may need to seek assistance from a qualified server administrator or web developer.

nginx 报错connection refused

当您在使用 Nginx 时遇到“连接被拒绝”错误时，可能会有多种原因。以下是一些可能的原因和解决方法：

1. Nginx 未正确配置或未启动。请确保您已启动 Nginx，并且它正在运行。

2. 防火墙或网络问题。如果您的服务器上有防火墙，请确保已正确配置防火墙规则以允许传入的连接。

3. 您的后端服务器未正确配置或未启动。如果您在 Nginx 配置中使用了代理服务器，则需要确保您的后端服务器已正确配置并正在运行。

4. 端口冲突。如果您的 Nginx 端口与其他服务冲突，则可能会导致连接被拒绝。请确保您的 Nginx 端口未被其他服务占用。

5. Nginx 配置错误。如果您的 Nginx 配置文件中存在错误，则可能会导致连接被拒绝。请仔细检查您的配置文件，并确保它是正确的。

总之，连接被拒绝错误可能由多种原因引起。如果您无法解决问题，请仔细检查您的服务器和网络设置，并参考 Nginx 文档以获取更多帮助。