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AWS 文件丟上 GitHub 讓大家可以提供意見

AWS 宣佈把文件丟上 GitHub 讓大家參與修改:「AWS Documentation is Now Open Source and on GitHub」,整包放在「Amazon Web Services - Documentation」這邊。

看了一下授權的部份,文件大多是 Creative Commons Attribution-ShareAlike 4.0 International Public License (在 SUMMARY 的部份會寫「Creative Commons Attribution-ShareAlike 4.0 International License」),而 sample code 用的授權看起來有點像 MIT license 或是 ISC license,但比對了一下好像不是這兩個...

這樣做另外的好處是有歷史記錄,要查一些歷史故事的時候比較好查...

GitHub 在 2/28 遭受的攻擊...

GitHub 在 2/28 遭受 DDoS 攻擊,蠻快就把事故報告丟出來了:「February 28th DDoS Incident Report」。

不過跟 GitHub 其他文章不太一樣,這篇算是 PR 稿吧,簡單來說就是花錢買 Akamai Prolexic 的過濾服務解決... Akamai 方的 PR 稿則是在「Memcached-fueled 1.3 Tbps attacks - The Akamai Blog」這邊可以看到。

17:21 UTC 發現問題,然後判斷超過 100Gbps,所以 17:26 決定讓 Akamai Prolexic 接管過濾:

At 17:21 UTC our network monitoring system detected an anomaly in the ratio of ingress to egress traffic and notified the on-call engineer and others in our chat system. This graph shows inbound versus outbound throughput over transit links:

Given the increase in inbound transit bandwidth to over 100Gbps in one of our facilities, the decision was made to move traffic to Akamai, who could help provide additional edge network capacity. At 17:26 UTC the command was initiated via our ChatOps tooling to withdraw BGP announcements over transit providers and announce AS36459 exclusively over our links to Akamai. Routes reconverged in the next few minutes and access control lists mitigated the attack at their border. Monitoring of transit bandwidth levels and load balancer response codes indicated a full recovery at 17:30 UTC. At 17:34 UTC routes to internet exchanges were withdrawn as a follow-up to shift an additional 40Gbps away from our edge.

就這樣而已,完全就是 PR 稿 XDDD

GitHub 的 Gist 要移除匿名發表的功能了...

GitHubGist 變成要註冊使用者才能貼了:「Deprecation notice: Removing anonymous gist creation」。主要的原因也還是因為太多 spam 之類的訊息:

In 30 days, we'll be deprecating anonymous gist creation—a decision we made after a lot of deliberation. Anonymous gists are a handy tool for quickly putting a code snippet online, but as the only way to create anonymous content on GitHub, they also see a large volume of spam. In addition, many people already have a combination of tools authenticated with GitHub that allow them to create gists they own.

預定是 3/19 關閉... 只好繼續貼 Pastebin 了... XD

GitHub 停用過時加密演算法的計畫

先前有提到 GitHub 廢除 SSH 中的弱演算法 (參考「GitHub 明年關閉 SSH 上 SHA1 相關的 Kx (Key Exchange) 演算法」),現在宣佈詳細作法了:「Weak cryptographic standards removal notice」。

包括 HTTPS 的 TLSv1/TLSv1.1 以及 SSH 的 diffie-hellman-group1-sha1/diffie-hellman-group14-sha1 都會被廢止。而作法跟其他家不太一樣:

  • February 8, 2018 19:00 UTC (11:00 am PST): Disable deprecated algorithms for one hour
  • February 22, 2018 19:00 UTC (11:00 am PST): Permanently disable deprecated algorithms

先關閉一個小時讓沒看公告但是有注意到的人可以發現,然後過兩個禮拜後才完全關閉。跟其他家不太一樣的作法...

台美之間的租稅協定 (還在橋)

看到「因應美稅改 賴揆:加速洽簽台美租稅協定」這則消息,如果沒記錯的話,有不少服務都是美國公司出帳... (像是 AWSSlackGitHub 這類在公司裡很常用的服務)

參考「我國股利、利息及權利金扣繳率(%)一覽表」這邊的資料,應該有機會從 20% 降到 10%?也就是說實付 100 萬的金額本來要多繳 25 萬 (帳要做成 100 萬 / (1 - 0.2) = 125 萬,其中的 20% 是 25 萬萬稅,100 萬實際支付),現在只要繳 11.1 萬 (100 萬 / (1 - 0.1) = 111.1 萬)?

不過有些特殊情況本來就有更優惠的稅務方式 (像是使用國外平台提供服務 (e.g. AWS),而服務的對象也是境外使用者的情況),這些組合可以研究看看要怎麼搞...

AWS CodeBuild 也可以產生 Badge 給網頁用 (像是掛在 GitHub 的 README 裡)

在「Build Badges Sample with AWS CodeBuild」這邊看到 AWS CodeBuild 支援 Badge 的方法。最常用的 GitHub 是給 AWS CodeBuild 授權後取得:

If you chose GitHub, follow the instructions to connect (or reconnect) with GitHub. On the GitHub Authorize application page, for Organization access, choose Request access next to each repository you want AWS CodeBuild to be able to access. After you choose Authorize application, back in the AWS CodeBuild console, for Repository, choose the name of the repository that contains the source code. Select the Build Badge check box to make your project's build status visible and embeddable.

有四種狀態:

  • PASSING The most recent build on the given branch passed.
  • FAILING The most recent build on the given branch timed out, failed, faulted, or was stopped.
  • IN_PROGRESS The most recent build on the given branch is in progress.
  • UNKNOWN The project has not yet run a build for the given branch or at all. Also, the build badges feature might
    have been disabled.

不過我還是偏愛 3rd party 的組合,不是很愛用 AWS CodeXXX 系列的服務就是了... 唯一一個用的是 AWS CodeCommit 因為有永久的免費額度可以用。

新書廣告「為你自己學Git」

Disclosure:我跑去找作者簽名,然後被戳說要介紹廣告一下 XDDD

這是本講 Git 的書,翻內容後的感覺... 定位差不多在入門使用者與中階使用者。先引用作者在 Twitter 的 tweet:

天瓏掛第一,然後出版社通知要二刷了,應該是賣的還不錯 XDDD

書的章節可以參考「天瓏網路書店-為你自己學Git」這邊,內容是以 Command Line 為主,對於真的要把 Git 用好蠻有幫助的。除此之外,實務上常見的問題都有提到 (像是搞爛東西後可能的解法),也講了不少冷知識,對於理解 Git 內怎麼運作會有幫助...

唯一覺得奇怪的地方應該是在最後兩章,講 GitHub 與 Git Flow (也就是「A successful Git branching model」這邊提出來的方法),反而不是 GitHub Flow... 雖然在 GitHub 上也可以走 Git Flow 啦。

Mozilla 實做百度發表的 Speech-To-Text 引擎 Deep Speech

Hacker News 上看到 MozillaGitHub 上的 mozilla/DeepSpeech 這個專案,用 TensorFlow 實做了百度的「Deep Speech: Scaling up end-to-end speech recognition」論文:

A TensorFlow implementation of Baidu's DeepSpeech architecture

語音轉文字的方案,Mozilla 開專案實做出來了...

這程式碼需要安裝 Git Large File Storage 才能完整下載包含訓練資料的部份:

Manually install Git Large File Storage, then clone the repository normally:
git clone https://github.com/mozilla/DeepSpeech

而目前已經有的資料來自於 Mozilla 另外一個專案「Common Voice」:

The Common Voice project is Mozilla's initiative to help teach machines how real people speak.

Common Voice 這個專案目前只有英文,網頁上就可以參與 validation 過程...

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