Linux软件升级

示例一：升级SAMBA服务器

1、寻找samba官方网站，找到最快的镜像服务器
2、下载最新软件包和数字签名
3、校验数字签名
#wget http://us1.smaba.org/samba/ftp/smaba_3.0.6.tar.asc 下载数字签名
#wget http://us1.samba.org/samba/ftp/samba-pubkey.asc 下载公钥文件
#gpg --import samba-pubkey.asc 导入公钥文件
#gzip -d samba-3.0.0.tar.gz 解压缩软件包
#gpg --verify samba-3.0.0.tar.asc 校验数字签名
4.编译安装升级
#tar xvf samba-3.0.0.tar
#cd samba-3.0.6
#cd source
#./configure
#make
#make install

示例二：为Kernel打补丁

1.准备好2.4.26版本的内核文件linux-2.4.26.tar.bz2
2.下载2.4.27版本的补丁patch-2.4.27.bz2和md5校验文件
3.打补丁
#tar xvjf linux-2.4.26.tar.bz2
#bzcat patch-2.4.27.bz2|patch -p0 -p0指使用原始路径
#mv linux-2.4.26 linux-2.4.27
4.编译新内核替换旧内核
#cd linux-2.4.27;make menuconfig
#make dep bzImage modules modules_install install

有关数字签名

原文不需保密的数字签名名实现方法
1.发方A对原文进行哈希运算，得到数字摘要MD
2.发方A用自己的私钥对MD加密，得到数字签名DS
3.将原文与DS一起发送到接收方B
4.接收方B使用A的公钥解密DS得到MD，并对原文进行Hash运算
5.将运算得出的MD值与解密得出的MD值比较，匹配即成功。

原文保密的数字签名及实现方法
1.发方对原文进行哈希运算，得到数字摘要MD
2.发方A用自己的私钥对MD加密得到DS
3.发方用IDES对称算法的对称密钥SK对原文SD、A的公钥进行加密，得到加密信息E
4.发方A用收方B的公钥加密对称密钥SK，形成数字信封DE
5.发送方A将加密信息E和信封DE发送到接收方B
6.接收方B用自己的私钥解密信封DE取得SK
7.接收方B用SK解密信息E，得到原文、SD、A的公钥
8.使用A的公钥解密SD得到原文的MD
9.接收方B对原文进行Hash运算得到MD’
10.如MD与MD’相等，说明数据没被篡改，签名真实。

《逢いたくていま》──仁医主题曲

原始链接：听歌学日语 | 唱哭很多人的《逢いたくていま》あいたくていま - MISIA 现在好想见你- MISIA 初はじめて出会であった日ひのこと覚おぼえてますか第一次相遇的那天你是不是还记得呢? 過すぎ行ゆく日ひの思おもい出でを忘わすれずにいて那些过去日子的回忆我一直没有有忘记あなたが見みつめた全すべてを感かんじていたくて凝视着你这一切的全部我都想要感觉空そらを見上みあげた抬头仰望天空今いまはそこで私わたしを見守みまもっているの? 你到现在是否还在那里守护着我？教おしえて… 请你告诉我今いま逢あいたいあなたに现在好想见你伝つたえたい事ことがたくさんある有好多想要告訴你的事情ねえ逢あいたい逢あいたい呐好想见你好想见你気きづけば面影おもかげ探さがして悲かなしくて如果能注意到的话你的面容是在寻找着还是悲伤着どこにいるの? 抱だきしめてよ到底在哪里呢? 好想抱紧你私わたしはここにいるよずっと我会一直在这里一直等你もう二度にどと逢あえないことを知しっていたなら如果能早点知道已经再也无法相见繋つないだ手てをいつまでも離はなさずにいた我会牵在一起的手永远都不会放开『ここにいて』とそう素直すなおに泣ないていたなら如果当初诚实哭泣地告诉你『留在我身边』的话今いまもあなたは変かわらぬまま现在的你是否也依然不变地私わたしの隣となりで ...

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Interview with Steve Jobs, WGBH, 1990

Interviewer: what is it about this machine? Why is this machine so interesting? Why has it been so influential? Jobs: Ah ahm, I'll give you my point of view on it. I remember reading a magazine article a long time ago ah when I was ah twelve years ago maybe, in I think it was Scientific American . I'm not sure. And the article ahm proposed to measure the efficiency of locomotion for ah lots of species on planet earth to see which species was the most efficient at getting from point A to point B. Ah and they measured the kilocalories that each one expended. So ah they ranked them all and I remember that ahm...ah the Condor, Condor was the most efficient at [CLEARS THROAT] getting from point A to point B. And humankind, the crown of creation came in with a rather unimpressive showing about a third of the way down...

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犀流研习班第十期001-2讲听课笔记

一. 杂谈 1. Max 逼真的效果图和视频 2. SU 显示模式，费力可以作出好看的效果图 3. Maya 支持Nurbs,但不快捷，对CAD导出也不方便

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产品随想 | 周刊第69期：Do not go gentle into that good night

Products Windows Apps That Amaze Us https://amazing-apps.gitbook.io/windows-apps-that-amaze-us/ 令人精细的Windows App 文物出版社 https://book.douban.com/press/2456/ 这是一个宝藏出版社，出品书籍质量非常高，大开眼界 blind https://www.teamblind.com/ 老外的匿名职场社交工具，挺有意思，看看硅谷的meme 中国科学技术大学测速网站 https://test.ustc.edu.cn/ 看着还不错，挺靠谱的底层代码是LibreSpeed https://github.com/librespeed/speedtest 能不能好好说话？ https://github.com/itorr/nbnhhsh 也是我的一个痛点 Tree Style Tab (aka TST) https://github.com/piroor/treestyletab 一个超强的浏览器扩展插件，树状呈现浏览器标签 Failory Pitch Decks https://www.failory.com/pitch-deck 超级多的融资计划投资板，Pitch Book AutoCut https://github.com/mli/autocut 用文本编辑器剪视频全网漫游指南 https://tagly.notion.site/tagly/a333efd8c3e54e12b123acd541e8d3e6 数字时代的指引，希望他们成功 IT eBooks https://it-ebooks.info/ IT书籍下载 ToastFish https://github.com/Uahh/ToastFish 一个利用摸鱼时间背单词的软件。利用Win10通知栏，出现、背单词 Ideas 沈向洋：IDEA 如何找到创新的「甜区」 https://mp.weixin.qq.com/s/OlI5VUxQKU_ijWZClQCG0Q AIGC How Did Nor...

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产品随想 | 周刊第115期：2024.5.16 Great libraries build communities

Loop https://github.com/MrKai77/Loop Loop is a macOS app that simplifies window management for you! 我的电视 my-tv https://github.com/lizongying/my-tv 我的电视电视直播软件，安装即可使用 When we think about this technology, we need to put human dignity, human well-being—human jobs—in the center of consideration. ————Fei-Fei Li Author Talks: Dr. Fei-Fei Li sees ‘worlds’ of possibilities in a multidisciplinary approach to AI https://www.mckinsey.com/featured-insights/mckinsey-on-books/author-talks-dr-fei-fei-li-sees-worlds-of-possibilities-in-a-multidisciplinary-approach-to-ai Randy Ubillos https://apple.fandom.com/wiki/Randy_Ubillos Randall Hayes "Randy" Ubillos is the original software engineer behind Adobe Premiere and Final Cut Pro. 影响全球视频制作的男人， Reminders MenuBar https://github.com/DamascenoRafael/reminders-menubar Simple macOS menu bar application to view and interact with reminders. Developed with SwiftUI and using Apple Reminders as a source. Bad libraries build colle...

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产品爱好者周刊第36期：走进Linux

Products OpenShot https://github.com/OpenShot/openshot-qt OpenShot Video Editor is an award-winning free and open-source video editor for Linux, Mac, and Windows 开源的视频剪辑工具，跨平台 Run https://github.com/The-Run-Philosophy-Organization/run 润学全球官方指定GITHUB，整理润学宗旨、纲领、理论和各类润之实例 Dozer https://github.com/Mortennn/Dozer Hide menu bar icons on macOS ThisIsWin11 https://github.com/builtbybel/ThisIsWin11 Win11的隐私保护 RoundedTB https://github.com/torchgm/RoundedTB Add margins, rounded corners and segments to your taskbars! Droptop Four https://github.com/Droptop-Four/Basic-Version Droptop Four is the fourth iteration of the popular dropdown app launcher for Windows & Rainmeter. LibreTube https://github.com/Libre-tube/LibreTube An alternative frontend for YouTube, for Android. nheko https://github.com/Nheko-Reborn/nheko Quaternion https://github.com/quotient-im/Quaternion 多平台的Matrix客户端 FluffyChat https://fluffychat.im/ Phone端的Matrix...

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Apple's One-Dollar-a-Year Man, By Steve Jobs, 2000

(FORTUNE Magazine) – Now that Steve Jobs has showed his hand on Apple's Internet and system software strategies and dropped the "interim" from his title, other questions loom. He's always denied it, but isn't it true that his old company, Next, did wind up taking over Apple? Will there ever be an encore to the 15-year-old Macintosh? Short of that, does Apple have any plans to jump into the "Internet appliance" fray? Will Apple ever build computers for business people again? And what, pray tell, does Steve think of all these young Internet zillionaires? Let's ask. Practically every technology that your old company, Next, possessed when Apple acquired it in 1997 is now being used by Apple in some strategic way. This must seem like sweet vindication. The thing about Next was that we produced something that was truly brilliant for an audience that our heart really wasn't into selling to--namely, the enterprise. I suppose if you were wr...

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产品随想 | 周刊第43期：历史上的今天

Products Huberman Lab https://hubermanlab.com/ 一款聚焦于健康的播客今日热榜 https://tophub.today/ 聚合展示，国内各热门榜单，对跟进热点非常有帮助，热点运营的好帮手 SketchyBar https://github.com/FelixKratz/SketchyBar A highly customizable macOS status bar replacement Mac菜单栏定制自定义程度很高，看作者展示的案例，暂时没想出这样的好处（不过应用本身的编辑，确实也没啥意义）生命在于折腾吧！ Thanks-Mirror https://github.com/eryajf/Thanks-Mirror 整理记录各个包管理器，系统镜像，以及常用软件的好用镜像，Thanks Mirror。 Musicn https://github.com/zonemeen/musicn 一个下载高品质音乐的命令行工具，音乐来源: 咪咕 Planet Minecraft A creative Minecraft community fansite sharing maps, minecraft skins, resource packs, servers, mods, and more. 里面有很多动人的故事可能是世界上最大的Minecraft社区，从2010年至今 The Uncensored Library https://www.uncensoredlibrary.com/en blockworks https://www.blockworks.uk/ "Distinctive maps for Minecraft that have educated players and risen to the level of art" 游戏也可以让人有更高的实现，而不仅仅是沉迷其中，国外游戏厂商比我们做的好太多 Minecraft_Memory_Bypass_GUI https://github.com/xingchuanzhen/Minecraft_Memory_Bypass_GUI 绕过Minecraft...

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Steve Jobs: `There's Sanity Returning', 1998

Nobody can doubt the charisma of Steven P. Jobs. The interim CEO of Apple Computer Inc., who returned to the company last July after his ignominious 1985 ouster, has brought back his legendary vision, impatience, and infectious passion for the Macintosh. Jobs spoke to Business Week Correspondent Andy Reinhardt in Apple's stark, fourth-floor boardroom, just after the company rolled out its new software strategy on May 11. Note: This is an extended, online-only version of the Q&A that appears in the May 25, 1998, issue of Business Week. Q: Now that you've introduced the new, bold-looking iMac, are you going to do some radically different products? A: There's a lot of talk about such things -- about handhelds, set-top boxes. A lot of computer companies have been searching for a consumer product. My view is that the personal computer has been the most successful consumer product of the last 10 years. What we have to do, what the industry stopp...

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有关密码学 Cryptography

% Crypto 101 % CUI Hao 密码学 Cryptography 加密：军事、商业保密、身份认证、日记... 计算机出现前：加密人类语言文字。计算机出现后：加密比特流（ASCII文本、网络协议）古典替换式密码凯撒密码文本中每个字母在字母表上后移 k 个位置。 ATTACK -> DWWDFN (k=3) IBM -> HAL (k=-1) 改进重新排列字母表（单字母替换）： alphabet: ABCDEFGHIJKLMNOPQRSTUVWXYZ map to: RCPWUXNQBZFMYTLIEGVDJOAKHS example: ATTACK -> RDDRPF "密码组合"有 26! 种之多。维吉尼亚密码每k个字母一组，与长度k的密码做加法： ATTACKATDAWN (plaintext) + LEMONLEMONLE (key: LEMON) = LXFOPVEFRNHR (ciphertext) 多个字母的凯撒密码。替换式密码 substitution cipher 单字母替换/多字母替换/密码本... 加密算法：映射密码：描述映射关系解密算法：反过来映射另一种设计方案也许是中国人发明的吧：群书万卷常暗诵，主人顾盼千金重。药物楚老渔商市，丸剑跳踯霜雪浮。移位式密码 ( transposition cipher ) 列移位密码按密码重新排列文本各列，然后竖着读出来： KEY: 6 3 2 4 1 5 TEXT: W E A R E D CT: I S C O V E ==> EVLNEACDTKESEAQROFOJDEECUWIREE R E D F L E E A T O N C E Q K J E U (WE ARE DISCOVERED. FLEE AT ONCE) ...

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