Example Analysis based on nginx access Log format

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In the nginx.cnf of nginx, use the log_format field to specify the format file of the log.

Log.fromat:

Log_format access'[$time_local] | $host | $remote_addr | $request | $request_time | $body_bytes_sent | $status |'| $upstream_addr | $upstream_response_time | $upstream_status |'"$http_referer" | "$http_user_agent"'

The fields correspond to:

Time_local local timestamp

Host request host address

Remote_addr remote request address

Request request uri

Total time of request_time for the entire request

Body_bytes_sent request file content size

Status http request status

The address of the service provided by the upstream_addr backend (that is, the destination address for forwarding processing)

Response time of upstream when upstream_reponse_time request

Upstream_status upstream statu

Http_refer url jump source

UserAgent of http_user_agent user terminal browser

For example

[18/Feb/2017:19:16:59 + 0800] | test.xyz | 115.33.60.172 | POST / api/1.1/device/info HTTP/1.1 | 0.003 | 43 | 200 | 127.0.0.1 POST 6000 | 0.003 | "-" | "Apache-HttpClient/UNAVAILABLE (java 1.4)"

Therefore, according to the log of access, we can judge the status of the request and the amount of data requested, and according to the target address, we can judge whether the forwarding rule of nginx is configured successfully.

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