投稿時間:2022-08-12 03:22:03 RSSフィード2022-08-12 03:00 分まとめ(24件)

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AWS	AWS Partner Network (APN) Blog	Building Serverless SaaS Microservices with AWS Lambda Layers	https://aws.amazon.com/blogs/apn/building-serverless-saas-microservices-with-aws-lambda-layers/	Building Serverless SaaS Microservices with AWS Lambda LayersBuilding multi tenant systems can represent a major effort for some teams This post focuses on introducing strategies that allow developers to write their day to day code without having to think about how tenancy might influence their implementation AWS Lambda Layers allow SaaS architects to centralize tenant aware libraries without impacting the size or load time of your application s functions	2022-08-11 17:26:21
AWS	AWS Database Blog	Use Amazon RDS Proxy to provide access to RDS databases across AWS accounts	https://aws.amazon.com/blogs/database/use-amazon-rds-proxy-to-provide-access-to-rds-databases-across-aws-accounts/	Use Amazon RDS Proxy to provide access to RDS databases across AWS accountsAmazon RDS Proxy is a fully managed highly available database proxy for Amazon Relational Database Service Amazon RDS that makes applications more scalable more resilient to database failures and more secure With RDS Proxy you can handle unpredictable surges in database traffic that might otherwise cause issues due to oversubscribing connections or creating new connections …	2022-08-11 17:25:36
AWS	AWS The Internet of Things Blog	How SysAid manages agents behind restricted firewall rules with AWS IoT Core	https://aws.amazon.com/blogs/iot/how-sysaid-manages-agents-behind-restricted-firewall-rules-with-aws-iot-core/	How SysAid manages agents behind restricted firewall rules with AWS IoT CoreThis blog post will outline how SysAid uses AWS IoT Core and the MQTT over WebSocket Secure communication protocol at scale for managing remote software agents and overcoming restricted firewall rules nbsp securely SysAid is a global Software as a service SaaS automation company that provides IT Service Management ITSM and Asset Management solutions which serve thousands …	2022-08-11 17:53:53
python	Pythonタグが付けられた新着投稿 - Qiita	Mkdocsの参考になりそうなサイト	https://qiita.com/akr_hn/items/483943c08e0c8ff45819	mkdocs	2022-08-12 02:59:53
python	Pythonタグが付けられた新着投稿 - Qiita	Python3エンジニア認定データ分析模試試験3回目　-間違えた問題-	https://qiita.com/itakura1984/items/d750f733930d58a34990	機械学習	2022-08-12 02:39:30
海外TECH	MakeUseOf	PowerA Wired Kirby Controller: Cuteness Overload	https://www.makeuseof.com/powera-wired-kirby-controller-review/	cheap	2022-08-11 17:05:14
海外TECH	DEV Community	Binary File Formats Explained	https://dev.to/errorgamer2000/binary-file-formats-explained-4g6j	Binary File Formats ExplainedWhen I first began researching binary file formats I was met with a complete absence of human friendly explanations anywhere online All of the resources that I came across were full of unfamiliar technical terms that made me feel like I was reading a textbook written for someone with twice my IQ Hence this article This is a summary of my research explained in English so that you can understand it without the trouble that I had Now without further delays let s get into the learning All of Those Confusing Technical TermsAs I said there were a number of technical terms that I encountered in my research that I had never heard of before these made little sense to me at the time and took even more painful research Here is a list of those terms explained in friendly ways Binary binary is a number system that has a base of That means that the only digits it uses are and Bit a bit is the smallest unit of data in a computer consisting of nothing more that a single binary digit a or Byte a byte is the next unit of data in a computer A byte consists of individual bits Signed Integer a signed integer is an integer whole number that is associated with a sign that declares whether the number is positive or negative Basically it is an integer with a or attached to it Unsigned integer an unsigned integer is an integer that is not associated with a sign or and is always considered to be a positive value What exactly is a file anyway A file is a collection of bits that is stored within a computer s memory Files are generally separated into bytes and measured by the number of bytes that they contain Kilo bytes Mega bytes Giga bytes etc Data TypesBefore we can truly begin working with binary file encoding we need to understand the types of data that can be stored within a file there are two main types of data in a file integers and strings IntegersIntegers are separated into two sub types signed and unsigned as I explained at the beginning of the article Unsigned Integers thanks to the lack of a sign can store a number with roughly twice the maximum value than that of a signed integer Note unsigned integer is abbreviated as Uint in almost every programming situation Signed Integers Ints are pretty much exactly the same aside from their reduced maximum value Both Uints and Ints are found in different sizes in binary files and are generally named based on how many bits they use to store their value For example Uint and Int both use bits in the file Uint and Int use bits and so on These numbers have different value limits based on the number of bits that they use TypeMinimum ValueMaximum ValueUintInt UintInt Uint Int Uint Int These are not the only sizes that can be used however and you may sometimes encounter some oddball sizes Here are a couple that I ran into TypeMinimum ValueMaximum ValueUintUint StringsStrings as you may already know are ordered sets of text characters When a string is stored in a binary file it is converted into a set of bytes with each byte storing one utf character in each byte as a Uint character ID EndiannessEndianness is one of the more difficult concepts to grasp so I m going to take an example based approach here Let s say I have a variable that is a Uint with the value of In order to store this variable in a binary file if must first be converted into a set of bytes Because our variable is a Uint taking up bits of space it requires two bytes in the file to store But Which of those two bytes comes first in the file This is where endianness comes into play High and Low BytesLet s convert our Uint variable into binary making sure to keep digits Notice how the number is split evenly between s and s Each of those groups is a single byte The byte on the left the s is the high byte meaning it comes first in the normal order of the value The byte on the right the s is called the low byte As you go across the bytes from left to right the bytes go from higher to lower order So in this number the left byte is of a higher order than the right byte Now there are two types of endianness that a number can be encoded in little endian and big endian format A number that is encoded in little endian format will have the bytes ordered from highest to lowest meaning that the lowest littlest byte comes at the end Numbers encoded in big endian format are ordered in the reverse of little endian numbers meaning that the highest bigest byte comes at the end instead Returning to our Uint variable here is what the number will look like when in the file EndiannessByte Byte littlebig Generic File FormatFrom here on we can only discuss the general patter of binary file formats so keep in mind any file format you see does not need to adhere to what is discussed here In most binary files the data is generally split into two main types of sections the file header and binary data blocks File HeadersA header in a binary file is generally a collection of bytes that have fixed positions at the beginning of the file A file header typically contains data about the version of the file format that the file was encoded with along with some other data about the contents of the file Headers do not however have to be the same length in every file of the same type Sometimes the header needs to contain data that has a variable length such as a string that is provided by the program Strings are not always the same length so in order to accomodate for this headers will typically define the total length of the header and a constant position for the string to start Any program that parses the file will then start reading the string at the constant index and continue untill it has read the full length of the header Data BlocksThe rest of a file after the header is generally devoted to data blocks Each data block can be either a fixed or variable size and will commonly have it s own header that tells the program that is parsing the file how to use the data inside the block as well as the lenght of the block if it is a variable size Hope that I have successfully explained how binary file formatting works If you have any questions or see an issue with a part of this article feel free to drop a comment below and I will fix it as soon as I can Happy Hacking Feeling Generous I am a year old self taught web developer trying to make a living while stuck with oppressive parents and trying to find a way to pay for college while not being allowed to have a job I would appreciate any donations Not Going to Donate Even if you don t donate simply liking this post or sharing it with anyone that might find it useful is a huge help	2022-08-11 17:38:43
海外科学	NYT > Science	Arctic Warming 4 Times as Fast as the Rest of the Planet, New Analyses Find	https://www.nytimes.com/2022/08/11/climate/arctic-global-warming.html	Arctic Warming Times as Fast as the Rest of the Planet New Analyses FindThe warming at the top of the globe a sign of climate change is happening much faster than previously described compared with the global average scientists said Thursday	2022-08-11 17:08:01
海外TECH	WIRED	Sloppy Software Patches Are a ‘Disturbing Trend’	https://www.wired.com/story/software-patch-flaw-uptick-zdi/	vulnerabilities	2022-08-11 17:28:34
ニュース	BBC News - Home	UN alarm as Ukraine nuclear power plant shelled again	https://www.bbc.co.uk/news/world-europe-62505815?at_medium=RSS&at_campaign=KARANGA	europe	2022-08-11 17:32:14
ニュース	BBC News - Home	Legoland: Rollercoaster crash at Germany resort injures 30	https://www.bbc.co.uk/news/world-europe-62512359?at_medium=RSS&at_campaign=KARANGA	trains	2022-08-11 17:34:19
ニュース	BBC News - Home	Ramsgate: Car hits family, killing Israeli man and woman	https://www.bbc.co.uk/news/uk-england-kent-62502355?at_medium=RSS&at_campaign=KARANGA	injuries	2022-08-11 17:05:35
ニュース	BBC News - Home	UK wildfires: Firefighters on tackling flames moving faster than you can run	https://www.bbc.co.uk/news/uk-62485130?at_medium=RSS&at_campaign=KARANGA	crews	2022-08-11 17:47:21
ニュース	BBC News - Home	The Groucho Club in Soho sold for £40m	https://www.bbc.co.uk/news/uk-england-london-62511883?at_medium=RSS&at_campaign=KARANGA	history	2022-08-11 17:05:25
ビジネス	ダイヤモンド・オンライン - 新着記事	【精神科医が教える】 「どうしても合わない人」と仕事をするとき… 人間関係の悩みが一気に晴れるたった1つの考え方 - 精神科医Tomyが教える 心の荷物の手放し方	https://diamond.jp/articles/-/307741	【精神科医が教える】「どうしても合わない人」と仕事をするとき…人間関係の悩みが一気に晴れるたったつの考え方精神科医Tomyが教える心の荷物の手放し方不安や悩みが尽きない。	2022-08-12 02:50:00
ビジネス	ダイヤモンド・オンライン - 新着記事	円安・円高はこの先どうなる？為替と金融政策と株価の関係を学ぼう - めちゃくちゃ売れてる株の雑誌ザイが作った「株」入門	https://diamond.jp/articles/-/304450	企業業績	2022-08-12 02:45:00
ビジネス	ダイヤモンド・オンライン - 新着記事	英語で言いたいことがスラスラ話せるようになる 8つの「つなぎ語」とは？【書籍オンライン編集部セレクション】 - 7時間で英語が突然ハッキリ聞こえて会話が続く本	https://diamond.jp/articles/-/307573	そのメソッドを初公開した話題の書、が「時間で英語が突然ハッキリ聞こえて会話が続く本」です。	2022-08-12 02:40:00
ビジネス	ダイヤモンド・オンライン - 新着記事	【精神科医が教える】ひどいことをされているのに、「この人には私しかいない」と思ってしまう危機的な心理状態 - こころの葛藤はすべて私の味方だ。	https://diamond.jp/articles/-/307852	心理状態	2022-08-12 02:35:00
北海道	北海道新聞	大阪で２万２０５１人感染　２０人死亡、７人取り下げ	https://www.hokkaido-np.co.jp/article/716813/	取り下げ	2022-08-12 02:22:15
北海道	北海道新聞	ボート、川上ら準々決勝へ　全国高校総体第１５日	https://www.hokkaido-np.co.jp/article/716827/	全国高校総体	2022-08-12 02:22:09
北海道	北海道新聞	サッカー池田監督「力ぶつける」　Ｕ―２０女子Ｗ杯開幕	https://www.hokkaido-np.co.jp/article/716832/	女子ワールドカップ	2022-08-12 02:22:05
北海道	北海道新聞	米国７月卸売物価、９・８％上昇　前月比は２年ぶり低下	https://www.hokkaido-np.co.jp/article/716865/	米国	2022-08-12 02:20:11
北海道	北海道新聞	穀物輸出初便、トルコ入港　次の目的地はエジプト	https://www.hokkaido-np.co.jp/article/716914/	輸出	2022-08-12 02:20:08
北海道	北海道新聞	ＮＹ株、一時３００ドル超高　インフレ加速懸念後退	https://www.hokkaido-np.co.jp/article/716894/	懸念	2022-08-12 02:18:07