| domain | haoad123.com |
| summary | The error "502 Bad Gateway" from Nginx indicates that one or more upstream servers are down or unreachable. This usually occurs when an intermediate proxy server (like Nginx) receives an invalid response from another server in its chain, often due to a failure in the remote server's processing of a request. |
| title | 502 Bad Gateway |
| description | 502 Bad Gateway |
| keywords | gateway |
| upstreams |
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| downstreams |
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| nslookup | A 120.77.145.68 |
| created | 2025-11-10 |
| updated | 2025-11-18 |
| summarized | 2025-11-18 |
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