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macOS 恶意软件 r3.o.lencr.org 这是一个网络请求拦截, 重定向到广告的恶意软件 1. 怎么发现的 翻墙代理服务出问题, 查看日志发现这个域名在不停的请求 2. 跟踪是哪个进程 打开nettop 命令, 不操作别的, 可以看到/usr/libexec/trustd 发出的请求 经查询这个程序是可信程序, 用来验证域名证书. 所以要进一步查询是什么程序让trustd发出的验证请求 [R3 root certificate expired](https://discussions.apple.com/thread/253256928) R3 好像是正规网站 r3.o.lencr.org 属于lencr.org 注册商是CloudFlare, Inc. ...

查询 select name from v$database; select instance_name from v$instance; show parameter serive_name; show parameter serive_names; // 集群 show parameter name; 查看所有表大小 select segment_name, bytesfrom user_segmentswhere segment_type = ‘TABLE’; 查看表所在的表空间 analyze table test01 compute statistics; 查看所有表空间 select * from user_t...

Install Nvidia Linux Driver disable nouveau Create a file sudo nano /etc/modprobe.d/blacklist-nouveau.conf With the following contents: blacklist nouveau options nouveau modeset=0 Regenerate the kernel initramfs: sudo update-initramfs -u Finally, reboot: sudo reboot Reference Install NVIDIA drivers on Ubuntu 18.04 ...

Emmet Syntax Elements div -> <div></div> Nesting operators Child: > div>ul>li Sibling: + div+p+bq Climb-up: ^ div+div>p>span+em^^bq Multiplication: * ...

Concepts headless web Headless web is a term used to describe a web application or website that does not have a user interface (UI) in the traditional sense. Instead of rendering HTML pages on the server and sending them to the client’s web browser to be displayed, a headless web application exposes its functionality through APIs (Applicati...

编程语言特性 First-class Function & Higher-order function A programming language is said to have First-class functions when functions in that language are treated like any other variable. For example, in such a language, a function can be passed as an argument to other functions, can be returned by another function and can be assigned as a ...

Kodi Reference kodi/userdata JSON-RPC API/v12

Linux 开机运行 1. crontab man 5 crontab 其中有@reboot 每次开机执行一次 grep CRON /var/log/syslog 查看crontab 日志 因为crontab服务优先级很高, 有些操作过早执行 或者环境未设置前执行, 会执行失败 2. systemd [Unit] Description=trojan Documentation=https://trojan-gfw.github.io/trojan/config https://trojan-gfw.github.io/trojan/ After=network.target network-online.target nss-lookup.target mysql.se...