问题：苹果对 apple-app-site-association 的文件要求是不能添加后缀，如不能添加 .json 。nginx默认的设置，如果没有后缀的，当作 octet-stream，浏览器访问时，会弹出下载对话框，而不是直接显示内容。

尝试：可在nginx的站点配置文件里，添加相应的MIME类型，记得重新测试时先清除浏览器的缓存。

location = /.well-known/apple-app-site-association {
  default_type application/json;
}

参考：

• https://serverfault.com/questions/795467/for-what-is-the-well-known-folder/795474
• https://gist.github.com/thomph/951b333a37ee2adb0d3ac557bd75aba4

现象：在原网站，以mysql的root用户，通过mysqldump导出magento2的数据库文件。将导出的数据库文件导入到cPanel空间的数据库。访问cPanel空间的站点，提示出错：

2 exception(s):
Exception #0 (Zend_Db_Statement_Exception): SQLSTATE[42S02]: Base table or view not found: 1146 Table 'aqtest.inventory_stock_1' doesn't exist, query was: SELECT COUNT(DISTINCT e.entity_id) FROM `catalog_product_entity` AS

尝试：编辑导出的magento2数据库文件，将原

DEFINER=`root`@`localhost`

替换为现数据库用户，如

DEFINER=`aqtest`@`localhost`

，最后重新导入。

参考：https://magento.stackexchange.com/questions/259534/inventory-stock-1-doest-exist-on-magento-2-3

现象：在cPanel环境中执行magento2的命令，如 php bin/magento cache:flush提示出错：

An exception was raised while creating "Request"; no instance returned

尝试：用正确的php版本路径再次执行，如 /opt/cpanel/ea-php72/root/usr/bin/php bin/magento cache:flush

参考：

• https://magento.stackexchange.com/questions/256953/an-exception-was-raised-while-creating-request-no-instance-returned
• https://forums.cpanel.net/threads/specific-php-cli-version-for-account.636529/

##!/bin/sh

dates=$1
month=$(date | awk '{print $2}')
years=$(date | awk '{print $6}')
hours=$2
minutes=$3
seconds=$4


if [ "$seconds" = "" ] && [ "$minutes" = "" ] && [ "$hours" = "" ]; then
        grep "$dates/$month/$years" access.log | grep 'MOBILENO_QUERY'| wc -l;
elif [ "$seconds" = "" ] && [ "$minutes" = "" ]; then
        grep "$dates/$month/$years:$hours" access.log | grep 'MOBILENO_QUERY'| wc -l;
elif [ "$seconds" = "" ]; then
        grep "$dates/$month/$years:$hours:$minutes" access.log | grep 'MOBILENO_QUERY'| wc -l;
else
        grep "$dates/$month/$years:$hours:$minutes:$seconds" access.log | grep 'MOBILENO_QUERY'| wc -l;
fi 

参考：

• https://stackoverflow.com/questions/3826425/how-to-represent-multiple-conditions-in-a-shell-if-statement/3826462
• https://stackoverflow.com/questions/5130847/running-multiple-commands-in-one-line-in-shell

问题：有些服务器，设置了一段时间后（如3分钟后）ssh会话无活动时会自动断开，出现 Connection reset by anqun.org port 22 的提示信息，不方便长时间使用。

尝试：如在Windows的MobaXterm客户端中，可运行如 ssh -o "ServerAliveInterval 60" root@anqun.org 的命令，自动每60秒发送数据，延续ssh会话。

参考：https://superuser.com/questions/699676/how-to-prevent-ssh-from-disconnecting-if-its-been-idle-for-a-while