nginx installation (offline installation, new --with-http_ssl_module, --with-stream module, offline upgrade)

1 nginx installation

Packages required

链接：https://pan.baidu.com/s/1fhs_hZF1kJKFWNP6DxkV9Q 
提取码：aplg 

1.1 nginx offline installation

1.1.1 Installation environment inspection

​ **Step 1:** Check the environment, execute gcc -vand respectively g++ -v, and check whether there is gcc version information in the last line of the displayed information.

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