投稿時間:2023-06-26 00:16:15 RSSフィード2023-06-26 00:00 分まとめ(17件)

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python	Pythonタグが付けられた新着投稿 - Qiita	プログラミング入門コース　3週目	https://qiita.com/yuki_020817/items/e5be203ec5c6658d7f78	差し替え	2023-06-25 23:58:36
python	Pythonタグが付けられた新着投稿 - Qiita	Twitter APIの制限に打ち勝つ(力業)	https://qiita.com/sobassy/items/3e746ab92ddf33dd14d0	twitter	2023-06-25 23:52:34
python	Pythonタグが付けられた新着投稿 - Qiita	panderaを用いてデータフレームのバリデーションを実施する方法	https://qiita.com/hasesho/items/2db50e0fe5dd505276cf	pandera	2023-06-25 23:35:19
Ruby	Rubyタグが付けられた新着投稿 - Qiita	【Java初心者】JRubyをJavaから呼び出す	https://qiita.com/SeijiMiwa/items/a69bc730bdc23bda5e65	jruby	2023-06-25 23:59:19
Docker	dockerタグが付けられた新着投稿 - Qiita	DockerでPostgreSQLを立ててCSV取り込みするまで	https://qiita.com/yo16/items/742f9b883cd978b9b75e	dockerf	2023-06-25 23:02:13
Ruby	Railsタグが付けられた新着投稿 - Qiita	今週もらったレビューまとめ(2023年6月19日〜2023年6月23日)	https://qiita.com/KazuyaInoue/items/a9e9467f03b148481ee9	vuejsrails	2023-06-25 23:35:55
技術ブログ	Developers.IO	DevelopersIO の記事ページに「編集」ボタンを表示し、クリックしたら WordPress の編集ページに遷移できる Chrome 拡張を作ってみた	https://dev.classmethod.jp/articles/i-placed-the-edit-button-on-the-developersio-article-page-and-made-a-chrome-extension-that-can-transition-to-the-wordpress-edit-page-when-clicked/	chrome	2023-06-25 14:16:55
海外TECH	DEV Community	Higher-Order Functions and Callbacks: The Secret Sauce of JavaScript or Just Fancy Jargon?	https://dev.to/shubhamt619/higher-order-functions-and-callbacks-the-secret-sauce-of-javascript-or-just-fancy-jargon-418j	Higher Order Functions and Callbacks The Secret Sauce of JavaScript or Just Fancy Jargon Are you ready for a wild ride through the twisted and thrilling world of JavaScript Today we re about to dance with Higher order functions and callbacks which sound like they belong in a sci fi movie rather than in your everyday JavaScript file But don t panic These are not aliens from another galaxy They re here they re handy and they re about to become your best friends in coding Let s get started shall we Higher Order Functions or Fancy Pants Functions First off let s tackle this beast called Higher Order Functions No they re not royalty and they don t sit on a gilded throne In JavaScript a higher order function is just a function that does one or both of these super cool things Takes one or more functions as arguments yeah you read that right functions inside functions like a secret message in a spy novel Returns a function as its result like those surprise gifts that keep popping out of a box Here s a little example of a higher order function Meet greetSomeone It takes a function as an argument a callback which we ll get to in a sec and a name It then calls the callback function with the name as an argument function greetSomeone callback name return callback name const sayHello name gt Hello name console log greetSomeone sayHello John Hello John In this code greetSomeone is our higher order function and sayHello is the callback function that we pass as an argument Simple right Callbacks or Call Me Back JavaScript Okay we ve dealt with the high and mighty higher order functions now let s move onto callbacks Callbacks are like that reliable friend who will always return your calls or in this case your functions A callback function is a function that is passed into another function as an argument and is expected to be called or executed later on It s kind of like saying Hey JavaScript do your thing and when you re done give me a ring Let s see a simple example of a callback in action function bakeCake callback console log Baking cake setTimeout gt callback function icingTheCake console log Icing the cake bakeCake icingTheCake In this code bakeCake is a function that takes a callback as an argument Inside bakeCake we re using JavaScript s setTimeout function a built in higher order function by the way to simulate the time it takes to bake a cake Once the cake is baked after seconds the callback function icingTheCake is called and we proceed to ice the cake Wrapping Up or We Survived So there you have it folks Higher order functions and callbacks aren t some big scary monsters They re more like the secret superheroes of JavaScript giving your code superpowers and making you look like a coding genius Remember as with everything in coding and in life practice makes perfect So go ahead play around with these concepts and soon you ll be throwing around terms like higher order function and callback as if they re going out of style Until next time keep your code clean and your coffeestrong Happy coding my fellow JavaScript readers	2023-06-25 14:25:08
Apple	AppleInsider - Frontpage News	Apple Vision Pro still has a way to go	https://appleinsider.com/articles/23/06/25/apple-vision-pro-still-has-a-way-to-go?utm_medium=rss	Apple Vision Pro still has a way to goThe Apple Vision Pro still has a lot to be worked on before the hardware is released with many features announced at WWDC to receive lots of attention in the coming months Apple Vision ProApple s slick presentation launching the Apple Vision Pro showed off many of the features of the headset while demonstrations of features to attendees were promising However it appears that Apple still has a long way to go to get all of the elements together for the final release version Read more	2023-06-25 14:17:04
海外TECH	Engadget	Hitting the Books: How hackers turned cybercrime into a commercial service	https://www.engadget.com/hitting-the-books-how-hackers-turned-cybercrime-into-a-commercial-service-153050866.html?src=rss	Hitting the Books How hackers turned cybercrime into a commercial serviceAs anyone who regularly games online can attest DDoS dedicated denial of service attacks are an irritatingly common occurrence on the internet Drawing on the combined digital might of a geographically diffuse legion of zombified PCs hackers are able to swamp game servers and prevent players from logging on for hours or days at a time The problem has metastasized in recent years as enterprising hackers have begun to package their botnets and spamming tools into commercial offerings allowing any Tom Dick and Script kiddie rental access to the same power nbsp It s a big internet out there and bad actors are plentiful There are worse things than spammers and scammers swimming in the depths of the Dark Web In his new book Fancy Bear Goes Phishing The Dark History of the Information Age in Five Extraordinary Hacks Dr Scott J Shapiro Professor of Law and Philosophy at Yale Law School traces the internet s illicit history through five of the biggest attacks on digital infrastructure ever recorded Farrar Straus GirauxFANCY BEAR GOES PHISHING The Dark History of the Information Age in Five Extraordinary Hacks by Scott J Shapiro Published by Farrar Straus and Giroux Copyright by Scott J Shapiro All rights reserved nbsp Crime as a ServiceNot all Denial of Service attacks use botnets In the Syrian Electronic Army SEA ーthe online propaganda arm of the brutal Bashar al Assad regimeーhacked into Melbourne IT the registrar that sold the nytimes com domain name to The New York Times The SEA altered the DNS records so that nytimes com pointed to SEA s website instead Because Melbourne IT contained the authoritative records for the Times website the unauthorized changes quickly propagated around the world When users typed in the normal New York Times domain name they ended up at a murderous organization s website Conversely not all botnets launch Denial of Service attacks Botnets are after all a collection of many hacked devices governed by the attacker remotely and those bots can be used for many purposes Originally botnets were used for spam The Viagra and Nigerian Prince emails that used to clutter inboxes were sent from thousands of geographically distributed zombie computers In these cases the attacker reaches out to their army of bots commanding them to send tens of thousands of emails a day In for example the Russian Grum botnet sent over billion spam emails a day from infected computers netting its botmaster million over three years Botnets are excellent spam infrastructure because it s hard to defend against them Networks usually use “block lists lists of addresses that they will not let in To block a botnet however one would have to add the addresses of thousands of geographically disbursed servers to the list That takes time and money Because the malware we have seen up till now ーworms viruses vorms and wiruses ーcould not work together it was not useful for financially motivated crime Botnet malware on the other hand is because the botnets it creates are controllable Botmasters are capable of issuing orders to each bot enabling them to collaborate Indeed botnet malware is the Swiss Army knife of cybercrime because botmasters can tell bots in their thrall to implant malware on vulnerable machines send phishing emails or engage in click fraud allowing botnets to profit from directing bots to click pay per click ads Click fraud is especially lucrative as Paras Jha would later discover In the ZeroAccess botnet could earn a day in click fraud It commanded a million infected PCs spanning countries including the island nation of Kiribati and the Himalayan Kingdom of Bhutan nbsp Botnets are great DDoS weapons because they can be trained on a target One day in February the hacker MafiaBoy knocked out Fifa com Amazon com Dell E TRADE eBay CNN as well as Yahoo then the largest search engine on the internet He overpowered these web servers by commandeering computers in forty eight different universities and joining them together into a primitive botnet When each sent requests to the same IP address at the same time the collective weight of the requests crashed the website nbsp After taking so many major websites off line MafiaBoy was deemed a national security threat President Clinton ordered a countrywide manhunt to find him In April MafiaBoy was arrested and charged and in January he pled guilty to fifty eight charges of Denial of Service attacks Law enforcement did not reveal MafiaBoy s real name as this national security threat was only fifteen years old MafiaBoy later revealed himself to be Michael Calce “You know I m a pretty calm collected cool person Calce reported “But when you have the president of the United States and attorney general basically calling you out and saying We re going to find you at that point I was a little bit worried Calce now works in the cybersecurity industry as a white hat ーa good hacker as opposed to a black hat after serving five months in juvenile detention nbsp Both MafiaBoy and the VDoS crew were adolescent boys who crashed servers But whereas MafiaBoy did it for the lulz VDoS did it for the money Indeed these teenage Israeli kids were pioneering tech entrepreneurs They helped launch a new form of cybercrime DDoS as a service DDoS as a service is a subscription based model that gives subscribers access to a botnet to launch either a daily quota or unlimited attacks depending on the price DDoS providers are known as booter services or stressor services They come with user friendly websites that enable customers to choose the type of account pay for subscriptions check status of service launch attacks and receive tech support nbsp VDoS advertised their booter service on Hack Forums the same site on which according to Coelho Paras Jha spent hours On their website www vdos s com VDoS offered the following subscription services Bronze month Silver month Gold month and VIP month accounts The higher the price the more attack time and volume At its peak in VDoS had subscribers The gang had a customer service department and for a time accepted PayPal From to VDoS earned and it launched DDoS attacks in one year nbsp VDoS democratized DDoS Even the most inexperienced user could subscribe to one of these accounts type in a domain name and attack its website “The problem is that this kind of firepower is available to literally anyone willing to pay thirty dollars a month Allison Nixon director of security research at business risk intelligence firm Flashpoint explained “Basically what this means is that you must have DDoS protection to participate on the internet Otherwise any angry young teenager is going to be able to take you off line in a heartbeat Even booter services need DDoS protection VDoS hired Cloudflare one of the largest DDoS mitigation companies in the world nbsp DDoS as a service was following a trend in cybercrime known as “malware as a service Where users had once bought information about software vulnerabilities and tried to figure out how to exploit those vulnerabilities themselves or had bought malicious software and tried to figure out how to install and execute it they could now simply pay for the use of malware and hack with the click of a button no technical knowledge required Because customers who use DDoS as a service are inexperienced they are particularly vulnerable to scams Fraudsters often advertise booter services on public discussion boards and accept orders and payment but do not launch the promised attacks Even VDoS which did provide DDoS service did so less aggressively than advertised When tested by Flashpoint VDoS botnet never hit the promised fifty gigabits second maximum ranging instead from six to fourteen gigabits second The boards that advertise booter services as Hack Forums once did are accessible to anyone with a standard browser and internet connection They exist on the Clear Web not on the so called Dark Web To access sites on the Dark Web you must use a special network known as Tor typically using a special browser known as the Tor Browser When a user tries to access a website on the Dark Web the Tor Browser does not request web pages directly It chooses three random sitesーknown as nodesーthrough which to route the request The first node knows the original sender but not the ultimate destination The second node knows neither the original source nor the ultimate destinationーit recognizes only the first node and the third node The third node knows the ultimate destination but not the original sender In this way the sender and receiver can communicate with each other without either knowing the other s identity The Dark Web is doubly anonymous No one but the website owner knows its IP address No one but the visitor knows that they are accessing the website The Dark Web therefore tends to be used by political dissidents and cybercriminalsーanyone who needs total anonymity The Dark Web is legal to browse but many of its websites offer services that are illegal to use Fun fact the U S Navy created the Dark Web in the mid s to enable their intelligence agents to communicate confidentially It might be surprising that DDoS providers could advertise on the Clear Web After all DDoS ing another website is illegal everywhere In the United States one violates the Computer Fraud and Abuse Act if one “knowingly causes the transmission of a program information code or command and as a result of such conduct intentionally causes damage without authorization where damage includes “any impairment to the availability of data a program a system or information To get around this booter services have long argued they perform a legitimate “stressor function providing those who set up web pages a means to stress test websites Indeed booter services routinely include terms of service that prohibit attacks on unauthorized sites and disclaim all responsibility for any such attacks In theory stressor sites play an important function But only in theory Private chats between VDoS and its customers indicated that they were not stressing their own websites As a booter service provider admitted to Cambridge University researchers “We do try to market these services towards a more legitimate user base but we know where the money comes from This article originally appeared on Engadget at	2023-06-25 14:30:50
ニュース	BBC News - Home	Cleethorpes: Girl, 15, dies after being pulled from sea - police	https://www.bbc.co.uk/news/uk-england-humber-66010411?at_medium=RSS&at_campaign=KARANGA	cleethorpes	2023-06-25 14:22:41
ニュース	BBC News - Home	999 calls: Technical glitch fixed for most forces	https://www.bbc.co.uk/news/uk-66012340?at_medium=RSS&at_campaign=KARANGA	backup	2023-06-25 14:44:49
ニュース	BBC News - Home	Man dies in Ombersley hot air balloon accident	https://www.bbc.co.uk/news/uk-england-hereford-worcester-66013070?at_medium=RSS&at_campaign=KARANGA	balloon	2023-06-25 14:04:12
ニュース	BBC News - Home	Glastonbury: Man dies after 'medical incident' at festival site	https://www.bbc.co.uk/news/uk-66014515?at_medium=RSS&at_campaign=KARANGA	somerset	2023-06-25 14:41:30
ニュース	BBC News - Home	Caledonian Sleeper goes back into public ownership	https://www.bbc.co.uk/news/uk-scotland-66012488?at_medium=RSS&at_campaign=KARANGA	england	2023-06-25 14:45:43
ニュース	BBC News - Home	Queen's 2023 results: Carlos Alcaraz beats Alex de Minaur to win first grass-court title	https://www.bbc.co.uk/sport/tennis/66013778?at_medium=RSS&at_campaign=KARANGA	Queen x s results Carlos Alcaraz beats Alex de Minaur to win first grass court titleCarlos Alcaraz wins his first title on grass and regains the world number one ranking with victory over Alex de Minaur in the Queen s final	2023-06-25 14:45:11
ニュース	BBC News - Home	Arsenal boss Mikel Arteta accepts Gunners must sign new players to win title	https://www.bbc.co.uk/sport/football/66014473?at_medium=RSS&at_campaign=KARANGA	Arsenal boss Mikel Arteta accepts Gunners must sign new players to win titleArsenal boss Mikel Arteta accepts his side must strengthen in the transfer market if they are to become Premier League champions	2023-06-25 14:36:30