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服务器外部连接问题

tag-icon • tag-icon ubuntu nginx php-fpm
服务器外部连接问题

面对 nginx+php-fpm 停止从外部资源（如 Amazon API）检索内容的情况，甚至 file_get_content/curl（PHP）也因超时错误而失败。

# wget --debug "URL"
DEBUG output created by Wget 1.13.4 on linux-gnu.

URI encoding = `UTF-8'
--2018-01-31 11:24:54--  URL
Resolving URL (URL)... , ...
Caching URL => ...
Connecting to URL (URL)|...|:80... Closed fd 3
failed: Connection timed out.
Connecting to URL (URL)|...|:80... Closed fd 3
failed: Connection timed out.
Connecting to URL (URL)|...|:80... connected.
Created socket 3.
Releasing 0x0000000001bd97c0 (new refcount 1).

是否有人对问题本身以及解决问题的可能步骤有任何想法，或者至少可以对其进行调试以进行澄清？

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