配置PicGo图床

我选用免费的github做图床——因为目前需求比较小。

记github换token验证身份这件事

准备hexo d 部署俺新的blog时，总是报错如下：

remote: Support for password authentication was removed on August 13, 2021. Please use a personal access token instead. remote: Please see https://github.blog/2020-12-15-token-authentication-requirements-for-git-operations/ for more information.

Summer project HW

HW1

classic cryptography and modern arithmatic

1) You are given a ciphertext encrypted under Caesar cipher: “ibbiks eqbp nctt nwzkm ia awwv ia bpm acv zqama”. Recover the key and the plaintext.

ibbiks eqbp nctt nwzkm ia awww ia bpm acv zqama

key=8

plaintext: attack with full force as soon as the sun rises

网络安全概述

计算机网络基础知识

Computer network=computer（CPU+MEM+peripherals）

Linux

常用命令

su和sudo

Sudo【superuser do 超级使用者】

关于su和sudo:

得先创建oracle账户。

直接下载准备好的exe或者到官方网站下载 http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html

Welcome to Hexo! This is your very first post. Check documentation for more info. If you get any problems when using Hexo, you can find the answer in troubleshooting or you can ask me on GitHub.

GIt

Git笔记

SVN为代表的的集中式

必须有一个中央总控的服务器。（储存历史版本和代码信息）