LouisLan的学习简记 👋🏼

博客在某一次更新之后，突然部分页面在访问时，跳出了Nginx 502的错误页面，当时第一个想法时查看博客后台服务器的错误日志，结果并没有抛出相关的异常。之后去nginx的日志里（默认记录日志在/var/log/nginx/）查找错误信息，果然找到错误信息的位置： 2021/08/01 00:54:18 [error] 4539#4539: *406960 upstream sent too big header while reading response header from upstream, client: 112.19.236.168, server: www.lonuslan.com, request: "GET /articles/2021/08/01/1627749166108.html HTTP/1.1", upstream: "http://106.52.77.158:9292/articles/2021/08/01/1627749166108.html", host: "www.lonuslan.com", referrer: "https://www.lonus....

买不起正版，故重置试用期残喘 Attention: 重置会清除所有的数据库连接信息，重置之前请先做好备份操作。 复制以下代码到新建文本中，然后更改文本后缀为.bat，之后运行就可以了。 echo "开始删除Navicat 15 For Mysql注册表试用期记录文件,请稍等……" echo "正在删除 HKEY_CURRENT_USER\Software\PremiumSoft\Navicat" reg delete "HKEY_CURRENT_USER\Software\PremiumSoft\Navicat" /f setlocal enabledelayedexpansion for /f "delims=: tokens=1,*" %%i in ('reg query "HKEY_CURRENT_USER\Software\Classes\CLSID"') do ( set /a index=0 set /a num=0 for /f "delims=: tokens=1,*" %%j in ('reg query %%i') do ( set /a index+=1 for ....

参考自：https://www.cnblogs.com/zero-vic/p/13296857.html 下载mysql yum包： wget http://repo.mysql.com/mysql57-community-release-el7-10.noarch.rpm 安装mysql rpm -Uvh mysql57-community-release-el7-10.noarch.rpm 安装mysql server端 yum install -y mysql-community-server 结果： [root@VM-8-15-centos ~]# yum install -y mysql-community-server Loaded plugins: fastestmirror, langpacks, product-id, search-disabled-repos, subscription-manager This system is not registered with an entitlement server. You can use sub....