投稿時間:2023-09-01 11:15:23 RSSフィード2023-09-01 11:00 分まとめ(18件)

カテゴリー等	サイト名等	記事タイトル・トレンドワード等	リンクURL	頻出ワード・要約等/検索ボリューム	登録日
IT	気になる、記になる…	Apple Watch用バンドの｢リンクブレスレット｣はまもなく販売終了? それとも新モデル登場?? ｰ 米国では全モデル在庫切れに	https://taisy0.com/2023/09/01/176149.html	apple	2023-09-01 01:03:12
IT	ITmedia 総合記事一覧	[ITmedia News] 電車の部品がそこかしこに　京急がリノベした分譲マンション、来年2月発売	https://www.itmedia.co.jp/news/articles/2309/01/news085.html	itmedia	2023-09-01 10:02:00
AWS	AWS Japan Blog	Amazon CodeCatalyst ブループリントを使用して .NET ウェブアプリケーションを構築し、AWS にデプロイする	https://aws.amazon.com/jp/blogs/news/using-amazon-codecatalyst-blueprints-to-build-and-deploy-net-web-applications-to-aws/	amazoncodecatalyst	2023-09-01 01:45:50
AWS	lambdaタグが付けられた新着投稿 - Qiita	VMware Content Library (コンテンツライブラリ) 作成を Amazon S3 + AWS Lambda で自動化してみた	https://qiita.com/sanjushi003/items/3fed25f688c6e0b20a80	amazonsawslambda	2023-09-01 10:07:40
Ruby	Rubyタグが付けられた新着投稿 - Qiita	Sorbet の型の置き場所を整理した	https://qiita.com/tomoasleep/items/20166bb97038f9fa8257	sorbet	2023-09-01 10:00:29
AWS	AWSタグが付けられた新着投稿 - Qiita	VMware Content Library (コンテンツライブラリ) 作成を Amazon S3 + AWS Lambda で自動化してみた	https://qiita.com/sanjushi003/items/3fed25f688c6e0b20a80	amazonsawslambda	2023-09-01 10:07:40
技術ブログ	Developers.IO	Google Cloud Enterprise SearchとRetrieveReadCompose方式RAGを利用して社内公式情報を全部質問できるようにしてみた	https://dev.classmethod.jp/articles/qa-with-google-cloud-enterprise-search-and-retrieve-read-compose-rag/	chatgptopenaiapi	2023-09-01 01:43:53
技術ブログ	Developers.IO	【10/3（火）】AWSにおけるコンテナセキュリティの勘所 ～SysdigとSnyk活用による真のDevSecOpsの実現～	https://dev.classmethod.jp/news/231003-snyk-sysdig-aws-webinar/	devsecops	2023-09-01 01:05:43
技術ブログ	クックパッド開発者ブログ	クローズしたサービスの管理画面を静的サイトにする	https://techlife.cookpad.com/entry/2023/09/01/100402	クローズしたサービスの管理画面を静的サイトにするこんにちは、技術部の石川です。	2023-09-01 10:04:02
海外TECH	DEV Community	What is DNS and CDN ?	https://dev.to/rajrathod/what-is-dns-and-cdn--3o38	What is DNS and CDN What is the DNS The Domain Name System DNS is a fundamental component of the internet that plays a crucial role in translating human readable domain names into machine readable IP addresses This translation is essential for communication between devices on a network DNS acts as a distributed database and naming system providing a way to associate domain names like www example com with their corresponding IP addresses like Here s a deeper explanation of the various aspects of the Domain Name System Hierarchical Structure DNS is organized in a hierarchical structure that resembles an inverted tree At the root of this tree is the root domain represented by a dot Below the root there are top level domains TLDs such as com org net and country code TLDs like us uk etc These TLDs are managed by specific organizations called domain registries Domain Names Domain names are human readable labels used to identify resources on the internet They consist of multiple parts separated by dots which are called labels or segments The rightmost label is the top level domain TLD followed by the second level domain SLD and optionally more subdomains For example in www example com www is a subdomain example is the second level domain and com is the top level domain Name Servers DNS operates through a network of servers called name servers These servers store and distribute DNS records that map domain names to IP addresses There are different types of name servers including authoritative name servers recursive name servers and caching name servers Authoritative Name Servers These servers hold the official DNS records for a specific domain Each domain has a set of authoritative name servers responsible for storing and providing information about that domain When a query is made for a domain s DNS records the authoritative name servers are queried for the most up to date information Recursive Name Servers Also known as resolving name servers these servers are responsible for handling DNS queries from clients such as your computer or smartphone If a recursive name server receives a query for a domain s IP address it starts the process of resolving the query by contacting the authoritative name servers and fetching the necessary DNS records Caching Name Servers Caching name servers store DNS records temporarily to reduce the load on authoritative name servers and speed up subsequent queries for the same domain When a caching name server receives a query it checks if it already has the required DNS records in its cache If the records are present and not expired the caching server provides the IP address without needing to contact authoritative name servers DNS Records DNS records are the actual data stored in DNS databases They contain information like IP addresses mail server addresses text records TXT service location records SRV and more Common DNS record types include A Record Maps a domain name to an IPv address AAAA Record Maps a domain name to an IPv address MX Record Specifies mail servers responsible for receiving email CNAME Record Creates an alias for a domain canonical name TXT Record Holds arbitrary text data often used for verification and authentication NS Record Lists the authoritative name servers for a domain DNS Resolution Process When you enter a domain name in your browser or an application the following steps occur for DNS resolution Your device queries a local recursive name server If the local server has the answer in its cache it returns the IP address If not the local server acts as a resolver and contacts the authoritative name server responsible for the domain The authoritative server provides the IP address to the local server The local server caches the result and returns the IP address to your device Your device can now use the IP address to establish a connection with the appropriate server DNS Hierarchy and Zones The DNS hierarchy is divided into zones where each zone represents a portion of the DNS namespace A zone is typically associated with a domain name and contains the authoritative name servers for that domain Zones can be further divided into subzones and this hierarchy allows for efficient management and distribution of DNS information DNSSEC Domain Name System Security Extensions DNSSEC is a set of extensions to DNS that adds cryptographic integrity and authentication to DNS data It helps prevent various attacks such as DNS spoofing and cache poisoning by ensuring that the DNS records you receive are authentic and haven t been tampered with Anycast DNS Anycast is a technique where multiple DNS servers share the same IP address and respond to queries based on proximity This improves response times by directing queries to the closest available server reducing network latency The Domain Name System is a critical infrastructure that translates human readable domain names into IP addresses facilitating seamless communication on the internet It operates through a hierarchy of servers uses various types of DNS records and employs caching mechanisms for efficient data retrieval DNS security hierarchy and distributed nature are all key elements that contribute to the reliability and functionality of this system What is the CDN A Content Delivery Network CDN is a network of geographically distributed servers designed to optimize the delivery of web content such as images videos scripts stylesheets and other assets to users based on their location CDNs are utilized to improve website performance reduce latency enhance scalability and provide a better user experience Here s a detailed explanation of how CDNs work and their benefits How CDNs Work Content Replication When a website is integrated with a CDN the CDN provider replicates and stores copies of the website s static content on multiple servers across various locations points of presence or PoPs around the world These servers are strategically positioned to be closer to end users reducing the distance data needs to travel Domain Name Resolution CDNs use a technique known as Anycast to route users requests to the nearest CDN server When a user types a URL in their browser the DNS resolution process identifies the nearest CDN server by selecting the optimal PoP based on factors such as network proximity and server health Caching CDN servers cache static content like images and videos for a specified period of time When a user requests a particular piece of content the CDN server checks if it has a cached copy If it does the server delivers the content directly to the user bypassing the need to retrieve it from the original website s server Dynamic Content Acceleration While CDNs are known for caching static content they also offer acceleration for dynamic content Some CDNs can optimize the delivery of dynamic content by employing techniques like content pre fetching connection pooling and TCP optimization Load Balancing CDNs distribute user requests across multiple servers to prevent any single server from becoming overwhelmed with traffic This load balancing improves website performance and ensures smooth user experiences even during traffic spikes Content Compression and Optimization CDNs can automatically compress and optimize content before delivering it to users This minimizes data transfer and reduces page load times particularly for users on slower network connections or mobile devices Benefits of CDNs Improved Website Performance By serving content from servers closer to users CDNs significantly reduce latency and page load times This improvement is especially noticeable for users located far away from the website s origin server Scalability CDNs provide scalability by handling traffic spikes and distributing the load across multiple servers This ensures that websites can handle sudden surges in traffic without experiencing slowdowns or crashes Reduced Bandwidth Costs CDNs can help reduce bandwidth usage on the origin server Since CDN servers handle a significant portion of content delivery less data needs to travel between the origin server and end users Global Reach CDNs allow websites to have a global reach without the need to set up and maintain data centers in multiple locations This is particularly beneficial for websites targeting international audiences Enhanced Security CDNs often offer security features such as DDoS protection SSL TLS encryption and web application firewall WAF services which can help protect websites from various online threats Content Optimization CDNs can optimize images videos and other assets for different devices and network conditions providing an optimal viewing experience across a range of devices Better User Experience Faster load times reduced latency and consistent performance contribute to an overall improved user experience Users are more likely to engage with websites that load quickly and seamlessly Content Delivery Networks CDNs play a vital role in enhancing the performance scalability and security of websites by distributing content to geographically dispersed servers By reducing latency optimizing content and providing global coverage CDNs contribute to a better user experience and improved website reliability Push CDNA Push CDN also known as a Push Content Delivery Network is a type of content delivery network that focuses on proactively distributing and replicating content from the origin server to multiple edge servers across various geographic locations Unlike traditional CDNs that primarily rely on user requests to cache and distribute content a Push CDN takes a more proactive approach by pushing content to edge servers in advance Here s a detailed explanation of how Push CDNs work and their benefits How Push CDNs Work Content Upload and Replication With a Push CDN the content provider such as a website owner uploads and pushes their content to the CDN s servers in advance This content includes static assets like images videos scripts stylesheets and other files that make up a website Replication to Edge Servers The Push CDN then replicates this uploaded content across its network of edge servers strategically positioned in various geographic locations These edge servers store cached copies of the content ready to be delivered to end users Content Updates and Purging Whenever there are updates or changes to the content on the origin server the content provider must manually push the updated content to the CDN Some Push CDNs also provide mechanisms for automatic purging of old or outdated content from the edge servers Domain Name Resolution Similar to traditional CDNs Push CDNs use Anycast or other routing techniques to route users requests to the nearest edge server This reduces latency and improves content delivery speeds Benefits of Push CDNs Performance Control Push CDNs offer greater control over content distribution and caching Content providers can ensure that specific content is readily available on edge servers which can improve load times and user experience Consistency Since content is pushed in advance to edge servers there s less variability in load times Users receive consistently fast load times regardless of whether the content is already cached on the edge server or not Better Handling of Traffic Spikes Push CDNs are particularly effective in handling sudden traffic spikes By pushing content ahead of time the CDN can ensure that the edge servers are well prepared to deliver content to a large number of users simultaneously Optimized Delivery Push CDNs allow for more efficient delivery of dynamic content and personalized experiences Content providers can ensure that complex or dynamic content is readily available at edge servers reducing the need for round trip requests to the origin server Customization Content providers have more control over content delivery rules and policies They can decide which content is pushed how often updates occur and when purging old content is necessary Reduced Origin Server Load By offloading content delivery to edge servers Push CDNs can significantly reduce the load on the origin server improving its performance and scalability Use Cases for Push CDNs Media Streaming Push CDNs are commonly used for streaming video and audio content ensuring that media assets are prepositioned on edge servers for smoother playback and reduced buffering Software Distribution Push CDNs are suitable for distributing software updates patches and downloadable files to a large user base efficiently E Commerce E commerce websites can use Push CDNs to ensure that product images descriptions and other content are readily available on edge servers improving page load times and conversion rates Global Websites Websites targeting a global audience can use Push CDNs to preposition content in different regions providing consistent performance to users worldwide High Traffic Events Push CDNs are valuable for delivering content related to high traffic events such as live broadcasts product launches or major announcements Pull CDNA Pull CDN also referred to as a Pull Content Delivery Network is a type of content delivery network that operates by responding to user requests for content Unlike Push CDNs that proactively distribute content to edge servers in advance Pull CDNs only cache and deliver content when a user requests it Here s a detailed explanation of how Pull CDNs work and their benefits How Pull CDNs Work User Request When a user accesses a website their browser or device sends a request for specific content such as images videos scripts or other assets to the Pull CDN s network DNS Resolution The user s request triggers a DNS lookup to determine the closest edge server to the user s location The DNS server responds with the IP address of the nearest edge server directing the user s request to that server Edge Server Response The user s request arrives at the selected edge server within the Pull CDN network If the edge server has a cached copy of the requested content it delivers that content directly to the user s device Origin Server Interaction If the edge server does not have a cached copy of the content or if the content has expired from the cache the edge server sends a request to the origin server hosting the original content Content Retrieval The origin server responds to the edge server s request by providing the requested content The edge server then caches the content for a certain period of time allowing it to serve subsequent requests for the same content without needing to contact the origin server Content Delivery Once the edge server has cached the content it delivers the requested content to the user s device Subsequent requests for the same content from other users in the same geographic area can also be served directly from the cached copy on the edge server Benefits of Pull CDNs Efficient Resource Utilization Pull CDNs conserve resources by only caching and distributing content when there is a demand for it This allows the CDN to focus on delivering the most relevant and frequently accessed content Reduced Latency for Popular Content Popular content that is requested frequently benefits from being cached on edge servers reducing the distance the content needs to travel and minimizing latency Flexible and Dynamic Pull CDNs are well suited for websites with frequently changing content Content updates on the origin server are automatically reflected in the cache once the content is requested ensuring users receive the latest version Scalability Pull CDNs can handle traffic spikes more efficiently since they only deliver content upon request This ability to scale on demand can be particularly useful during events that generate high traffic Simplified Setup Content providers do not need to preposition content on edge servers making the setup process simpler compared to Push CDNs Cost Effective Pull CDNs are cost effective because they only utilize resources as needed There is no need to maintain large amounts of cached content on edge servers in advance Use Cases for Pull CDNs Content Heavy Websites Websites that offer a wide range of content types such as news articles images videos and interactive elements can benefit from a Pull CDN s ability to deliver content upon request Frequently Changing Content Websites that frequently update their content such as news sites blogs and e commerce platforms can benefit from the dynamic nature of Pull CDNs Global Distribution Pull CDNs can effectively serve content to users worldwide ensuring that users receive content from the nearest edge server Content Personalization Websites that provide personalized content based on user preferences or location can use Pull CDNs to ensure that users receive the most relevant content in real time	2023-09-01 01:01:33
金融	ニッセイ基礎研究所	米個人所得・消費支出（23年7月）－個人消費（前月比）は名目、実質ともに２３年１月以来の高い伸び	https://www.nli-research.co.jp/topics_detail1/id=75974?site=nli	個人消費前月比は月がと堅調となった前月のからさらに伸びた加速した図表。	2023-09-01 10:49:23
金融	ニッセイ基礎研究所	宿泊旅行統計調査2023年7月～日本人延べ宿泊者数が全体を押し上げ、延べ宿泊者数はコロナ禍前の水準を回復～	https://www.nli-research.co.jp/topics_detail1/id=75973?site=nli	訪日外国人旅行消費額および訪日外国人旅行者数は、年月日に中国政府が日本への団体旅行を解禁したことで今後、さらに増加していくことが予想される。	2023-09-01 10:14:33
ニュース	BBC News - Home	Ukraine war: Back to school under Russian attacks	https://www.bbc.co.uk/news/world-europe-66668091?at_medium=RSS&at_campaign=KARANGA	school	2023-09-01 01:04:20
ビジネス	東洋経済オンライン	愛知県岡崎市オムライスをバズらせた店主の手腕 カゴメ｢オムライススタジアム2023｣グランプリ | 外食 | 東洋経済オンライン	https://toyokeizai.net/articles/-/696751?utm_source=rss&utm_medium=http&utm_campaign=link_back	愛知県岡崎市	2023-09-01 10:30:00
マーケティング	MarkeZine	【事例で学ぶ】成長フェーズのBtoB企業は必見！質の高いリードをつくるための注力／つまずきポイント	http://markezine.jp/article/detail/43333	高い	2023-09-01 10:30:00
マーケティング	MarkeZine	リブランディング以降が重要⁉ダンロップに聞く、ゴルフブランド「ゼクシオ」が選ばれ続ける秘訣【無料】	http://markezine.jp/article/detail/43297	重要	2023-09-01 10:15:00
マーケティング	AdverTimes	パナソニックHDブランド戦略・コミュニケーション戦略担当ほか（23年10月1日付）	https://www.advertimes.com/20230901/article432339/	担当	2023-09-01 01:23:33
マーケティング	AdverTimes	現役高校生が人気ラジオ番組に出演！　民間出身の校長だからできるキャリア教育とは？	https://www.advertimes.com/20230901/article432088/	民間企業	2023-09-01 01:00:45