在centos中，配置nginx的https時，出現如下錯誤。
nginx: [emerg] unknown directive "ssl" in /usr/local/nginx/conf/nginx.conf:102
到解壓的nginx目錄下
./configure --with-http_ssl_module
當執行上面語句，出現./configure: error: SSL modules require the OpenSSL library.
用 yum -y install openssl openssl-devel
再執行./configure
重新執行./configure --with-http_ssl_module
make ，切記不能make install 會覆寫。
把原來nginx備份
cp /usr/local/nginx/sbin/nginx /usr/local/nginx/sbin/nginx.bak
把新的nginx覆寫舊的
cp objs/nginx /usr/local/nginx/sbin/nginx
出現錯誤時cp: cannot create regular file ‘/usr/local/nginx/sbin/nginx’: Text file busy
用cp -rfp objs/nginx /usr/local/nginx/sbin/nginx解決
測試nginx是否正确
/usr/local/nginx/sbin/nginx -t
（nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful）
重新開機nginx
/usr/local/nginx/sbin/nginx -s reload