Nginx配置优化之启用keep-alive

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默认配置时
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GET / HTTP/1.1
Host: baiyangliu.com
X-Real-IP: 192.168.1.1
X-Forwarded-For: 192.168.1.1
X-Forwarded-Proto: https
X-Forwarded-Port: 443
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
Connection: close
修改配置
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proxy_http_version    1.1;

upstream backends {
    server 192.168.1.129;
    keepalive 128;
}

locatioin / {
    proxy_set_header  Connection "keep-alive";
    proxy_pass        http://backends;
}
再次请求
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GET / HTTP/1.1
Host: baiyangliu.com
X-Real-IP: 192.168.1.1
X-Forwarded-For: 192.168.1.1
X-Forwarded-Proto: https
X-Forwarded-Port: 443
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
Connection: keep-alive

可以发现HTTP/1.0变成HTTP/1.1，Connection: close变成Connection: keep-alive。