| IT |
ITmedia 総合記事一覧 |
[ITmedia News] Threads（スレッズ）に待望の“フォロー相手のみのタイムライン”などの新機能 |
https://www.itmedia.co.jp/news/articles/2307/26/news098.html
|
itmedianewsthreads |
2023-07-26 06:43:00 |
| TECH |
Techable（テッカブル） |
学習・運動の習慣化プラットフォーム「Smart Habit」運営元、明治安田生命と協業へ。健康寿命の延伸に貢献 |
https://techable.jp/archives/213958
|
smarthabit |
2023-07-25 21:00:36 |
| AWS |
AWS |
AWS Skill Builder subscription helps learners improve skills and achieve AWS Certification |
https://www.youtube.com/watch?v=QwafnNeK5bE
|
AWS Skill Builder subscription helps learners improve skills and achieve AWS CertificationKatie Raby is a career changer who started her career in marketing and transitioned into tech Hear from Katie how she used AWS Skill Builder subscription to learn about AWS prepare for her AWS Certification exams practice skills and contribute to her work projects by improving architecture designs Learn more at Subscribe More AWS videos More AWS events videos Do you have technical AWS questions Ask the community of experts on AWS re Post ABOUT AWSAmazon Web Services AWS is the world s most comprehensive and broadly adopted cloud platform offering over fully featured services from data centers globally Millions of customers ーincluding the fastest growing startups largest enterprises and leading government agencies ーare using AWS to lower costs become more agile and innovate faster awsskillbuilder awstraining awscertification AWS AmazonWebServices CloudComputing |
2023-07-25 21:52:09 |
| AWS |
AWS |
Generative AI Foundations on AWS | Part 2: Picking the right foundation model |
https://www.youtube.com/watch?v=EVqTWGafpfo
|
Generative AI Foundations on AWS Part Picking the right foundation modelIn part of Generative AI Foundations on AWS AWS generative AI expert instructor Emily Webber walks you through picking the right foundation model for your use case You ll learn why starting with the right foundation model is important as well as how to select the appropriate model by considering things such as size accuracy ease of use licensing industrial precedent and external benchmarks Learn more about generative AI on AWS Tune in to Build On Generative AI with host Emily Webber on twitch tv aws for even more tips and tricks Access the slides from this lesson to follow along Subscribe More AWS videos More AWS events videos Do you have technical AWS questions Ask the community of experts on AWS re Post ABOUT AWSAmazon Web Services AWS is the world s most comprehensive and broadly adopted cloud platform offering over fully featured services from data centers globally Millions of customers ーincluding the fastest growing startups largest enterprises and leading government agencies ーare using AWS to lower costs become more agile and innovate faster AWSMachineLearning MachineLearningUniversity MLU LearnML LearnMachineLearning aiml GenerativeAI GPT AWS AmazonWebServices CloudComputing |
2023-07-25 21:40:45 |
| 技術ブログ |
Developers.IO |
[アップデート] CloudFormation で ForEach 組み込み関数を使ってループが定義出来るようになりました |
https://dev.classmethod.jp/articles/cloudformation-foreach/
|
cloudform |
2023-07-25 21:49:38 |
| 海外TECH |
MakeUseOf |
Can Creatives Protect Their Work From Generative AI? |
https://www.makeuseof.com/can-creatives-protect-art-from-generative-ai/
|
creatives |
2023-07-25 21:15:24 |
| 海外TECH |
DEV Community |
Setting up SSL Certificate with Nginx |
https://dev.to/ajipelumi/setting-up-ssl-certificate-with-nginx-48gn
|
Setting up SSL Certificate with NginxOne of the essential steps to ensure secure connections on any website or web application is to set up SSL Secure Socket Layer certificates SSL certificates encrypt data transmitted between a user s browser and the web server safeguarding sensitive information from prying eyes In this post we will walk through the process of setting up an SSL certificate with Nginx a powerful and widely used web server Prerequisites Before we get started make sure you have the following prerequisites in place A domain name e g www example com A server with Nginx installed and running Obtaining an SSL Certificate The first step is to obtain an SSL certificate and we will use Let s Encrypt a free and widely recognized certificate authority to do this Let s Encrypt offers an automated certificate issuance process using the Certbot tool To get started follow these steps Step Install Certbotsudo apt updatesudo apt install certbot python certbot nginx Step Obtaining the SSL Certificatesudo certbot certonly standalone d lt your domain name gt non interactive agree tos email lt your email gt Certbot will handle the entire certificate issuance process for you After a successful run the SSL certificate and private key will be stored on your server Nginx Configuration for SSL Now that we have the SSL certificate let s configure Nginx to enable SSL on our domain Locate your Nginx configuration file for the domain usually found in etc nginx sites available default and add the following lines within the server block server listen ssl listen ssl root var www html index index html index htm index nginx debian html server name lt your domain name gt ssl certificate etc letsencrypt live lt your domain name gt fullchain pem ssl certificate key etc letsencrypt live lt your domain name gt privkey pem location try files uri uri The listen ssl and listen ssl lines enable SSL on port the default HTTPS port The ssl certificate and ssl certificate key directives point to the SSL certificate and private key files obtained from Certbot The location block handles the regular web page requests Configuring HTTP to HTTPS Redirection To redirect HTTP traffic to HTTPS add the following server block for port in the same Nginx configuration file as the above server listen listen server name lt your domain name gt location return https host request uri The location block performs an HTTP permanent redirect to the HTTPS version of the same URL https host request uri effectively enforcing secure connections over HTTPS for the entire website Testing and Reloading Nginx Before applying the changes test your Nginx configuration for syntax errors sudo nginx tIf the test is successful reload Nginx to apply the new configuration sudo systemctl reload nginxRemember to replace with your actual domain name in the configuration Additionally you should customize the location blocks and server settings according to your specific requirements |
2023-07-25 21:45:05 |
| 海外TECH |
DEV Community |
Why Is PostgreSQL Getting So Popular |
https://dev.to/maimoonaabid/why-is-postgresql-getting-so-popular-4o7m
|
Why Is PostgreSQL Getting So PopularPostgreSQL is a popular open source relational database with numerous benefits for developers including feature availability standards compliance community support and project governance This article will discuss some of the main factors that influence developers decisions to use PostgreSQL for data management These include project governance community support and the availability of features and standards compliance Let s see what are those factors Open Source Development and Community PostgreSQL is an open source project developed by The PostgreSQL Global Development Group distributed under the Open Source Initiative approved License Its community driven development increases user participation and offers high quality extensions and applications for administration business intelligence data management and programming languages SQL Standards Conformance PostgreSQL excels in adherence to SQL standards developed by ANSI and ISO groups Although no database currently satisfies all requirements PostgreSQL satisfies more of the SQL specifications than other options conforming to at least out of core requirements Robust Feature Set PostgreSQL offers numerous features for performance security programming extensions and configuration making it a popular choice Some of these features include Support for writing database functions using different programming languages Support for a huge number of data types Ability to define your own complex types Full text search for finding and operating on data in semi and unstructured text Robust authentication access control and privilege management systems suitable for organizations of any size Foreign data wrappers to represent and access tables and data in remote servers Views and materialized viewsComments on database objects Write Ahead Logging to provide point in time recovery failover and streaming replication Support for NoSQL like behavior such as storing documents using JSONB and key value pairs with hstore Object Oriented Database Features PostgreSQL s core design sets it apart from other relational databases Relational Database Management Systems RDBMSs are software designed for handling relational databases storing data in table like structures with predefined columns and data types PostgreSQL is an Object Relational Database Management System with relational capabilities and object oriented features in addition to the properties supported by RDBMS PostgreSQL enables defining complex data types overloading functions and defining inheritance relationships between tables This powerful tool allows modeling different types and relationships within the database system ensuring consistency and adherence to intended behavior ACID Compliance ACID stands for atomicity consistency isolation and durability in computer science ensuring data integrity and avoids validity errors Relational databases prioritize ACID compliance for structured data storage while non relational databases conform to BASE initialism which stands for basically available soft state and eventual consistency PostgreSQL has been providing ACID compliance since using a single database engine for default transactions This ensures ACID compliance without database locks using multiversion concurrency control MVCC MySQL only supports full ACID compliance with InnoDB or NDB engines |
2023-07-25 21:43:09 |
| 海外TECH |
DEV Community |
Introduction to Kubernetes |
https://dev.to/mesut-oezdil/introduction-to-kubernetes-30ki
|
Introduction to KubernetesGet ready to embark on a journey into the exciting world of Kubernetes ーthe revolutionary open source system transforming the way we deploy scale and manage containerized applications Discover the magic behind Kubernetes as it orchestrates your applications effortlessly streamlining their management and ensuring seamless discovery Get ready to witness the power of Kubernetes and unlock the secrets that make it the captain of the container fleet What Does Kubernetes Entail Kubernetes serves as an open source solution designed to automate the process of deploying scaling and overseeing containerized applications It efficiently organizes the constituent containers of an application into coherent entities simplifying their management and enabling seamless discovery Frequently denoted as ks it derives this abbreviation from the eight characters situated between k and s The term Kubernetes originates from the Greek word κυβερνήτης signifying a helmsman or ship captain By drawing parallels with this analogy we can liken Kubernetes to the adept captain skillfully navigating a fleet of containers The Importance of Kubernetes and Its CapabilitiesContainers offer an ideal method for bundling and executing applications When operating in a production setting it becomes essential to oversee the execution of containers hosting these applications and guarantee uninterrupted operation For instance in the event of a container failure prompt replacement with a new container is imperative Now imagine having a program that can autonomously manage such behaviours This is precisely where Ks comes into play Ks presents a robust framework to ensure the reliable operation of distributed systems Within this framework it handles scaling failover offers various deployment patterns and more to efficiently support your application s needs Ks supplies you with the following Service discovery and load balancingKs offers the option to expose a container through either its DNS name or its dedicated IP address In situations where container traffic is substantial Ks efficiently implements load balancing and evenly distributes network traffic ensuring a stable deployment Storage orchestrationWith Ks you have the flexibility to effortlessly attach and utilize your preferred storage system be it local storage public cloud providers or other options as it automatically enables seamless mounting Automated rollouts and rollbacksUsing Ks you have the ability to define the intended configuration of your deployed containers and it can smoothly transition the current state to the desired state at a regulated pace For instance you can employ Ks automation to generate new containers for your deployment eliminate existing containers and seamlessly transfer all their resources to the new container Automatic bin packingKs relies on the cluster of nodes you provide to execute containerized tasks You specify the CPU and memory RAM requirements for each container and Ks optimizes the placement of containers on your nodes to utilize your available resources effectively Self healingKs automatically handles container restarts in the event of failures performs replacements when necessary terminates unresponsive containers based on user defined health checks and ensures that these containers are not exposed to clients until they are fully ready to serve Secret and configuration managementKs provides the capability to securely store and handle sensitive information including passwords OAuth tokens and SSH keys It enables the deployment and modification of secrets and application configuration without the need to rebuild container images ensuring that secrets remain concealed within your stack configuration Docker Swarm vs Kubernetes Key DifferencesDocker Swarm serves as Docker s proprietary container orchestration system open source in nature enabling container clustering and scheduling In comparison to Ks Swarm exhibits the following distinctions Docker Swarm offers greater convenience during setup but its cluster may not be as robust as Ks which requires a more complex setup but provides the benefit of a reliable cluster While Ks supports auto scaling Docker Swarm lacks this capability however Docker scaling is five times faster compared to Ks Docker Swarm lacks a graphical user interface GUI whereas Ks provides a GUI through its dashboard Docker Swarm automatically load balances traffic between containers in a cluster while Ks requires manual intervention for load balancing such traffic For logging and monitoring Docker requires third party tools like ELK stack whereas Ks includes integrated tools for the same purpose Docker Swarm can easily share storage volumes with any container whereas Ks can only share storage volumes with containers in the same pod Docker supports rolling updates but doesn t offer automatic rollbacks while Ks can handle both rolling updates and automatic rollbacks Kubernetes componentsA Ks cluster comprises a minimum of one master node and one or more worker nodes The master node serves as the control plane responsible for task scheduling and cluster monitoring When deploying Ks you automatically obtain a cluster consisting of worker machines known as nodes which execute containerized applications Each cluster includes at least one worker node hosting the Pods constituting the application workload The control plane oversees the worker nodes and the Pods within the cluster In production settings the control plane often spans multiple computers while a cluster typically incorporates multiple nodes to ensure fault tolerance and high availability Control Plane ComponentsThe control plane s various elements are responsible for making overarching determinations regarding the cluster such as scheduling tasks and promptly reacting to cluster related incidents such as initiating a new pod when the deployment s replicas field is unfulfilled These control plane components can be executed on any machine within the cluster Nevertheless to streamline the process setup scripts often commence all control plane components on a single machine while ensuring that user containers do not run on this particular machine kube apiserverThe API server a pivotal element of the Ks control plane serves as the gateway to the Ks API Functioning as the front end it encapsulates the Ks control plane The primary implementation of the Ks API server is known as kube apiserver Designed for horizontal scalability kube apiserver can expand its capacity by deploying multiple instances Consequently running multiple instances of kube apiserver and distributing traffic among them is a feasible approach etcdIt is a reliable and fault tolerant key value store utilized as the underlying data store for all cluster related information in Ks In the event that your Ks cluster relies on etcd as its data store it is imperative to establish a comprehensive backup strategy for safeguarding that data kube schedulerkube scheduler an integral control plane element constantly monitors for recently created pods lacking assigned nodes and subsequently designates a suitable node for their execution The scheduling process involves evaluating various factors such as individual and collective resource demands hardware software policy restrictions affinity and anti affinity specifications data proximity inter workload interference and deadlines to make informed decisions kube controller managerThe Control Plane encompasses a pivotal component that executes various controller processes While each controller logically functions as an independent process for the sake of simplicity they are consolidated into a unified binary and run within a single process These controllers encompass Node controller Tasked with detecting and reacting to node failures Replication controller Ensures the appropriate number of pods is maintained for each replication controller object in the system Endpoints controller Fulfills the role of populating the endpoints object effectively joining services and pods Service Account amp Token controllers Create default accounts and API access tokens for newly created namespaces cloud controller managerThe cloud controller manager is an essential element within the Ks control plane incorporating cloud specific control logic By employing the cloud controller manager you can seamlessly integrate your cluster with your cloud provider s API while effectively segregating components that interact with the cloud platform from those focused on cluster interactions The cloud controller manager exclusively operates controllers designed for your specific cloud provider In situations where Ks runs on your own premises or in a learning environment on your personal computer the cluster will not include a cloud controller manager Similar to the kube controller manager the cloud controller manager consolidates logically independent control loops into a single binary executed as a unified process To enhance performance and increase fault tolerance horizontal scaling allows running multiple copies of the manager The following controllers can have cloud provider dependencies Node controller For checking the cloud provider to determine if a node has been deleted in the cloud after it stops responding Route controller For setting up routes in the underlying cloud infrastructure Service controller For creating updating and deleting cloud provider load balancers Node ComponentsOn each node node components manage the active pods and offer the necessary Ks runtime environment kubeletkubelet acts as an agent operating on every node within the cluster to ensure the proper execution of containers within pods It receives a collection of PodSpecs through various means and guarantees the continuous and healthy operation of containers defined in these PodSpecs Notably the kubelet solely oversees containers created by Ks and does not manage those outside of its purview kube proxykube proxy is a network proxy that operates on every node within your cluster playing a crucial role in the implementation of Ks Services By managing network rules on nodes kube proxy facilitates seamless network communication to your pods from both internal and external network sessions When available kube proxy utilizes the operating system packet filtering layer otherwise it independently forwards the traffic to ensure efficient networking Container runtimeThe container runtime serves as the software responsible for executing containers Ks provides support for multiple container runtimes including Docker containers CRI O CRI O is meant to provide an integration path between OCI conformant runtimes and the Kubelet and any implementation of the Ks CRI Container Runtime Interface ConclusionI appreciate you being kind enough to read this far and congratulations on your patience This article provided an introduction to Ks emphasizing its role as an open source solution for automating application deployment scaling and management The significance of Ks capabilities such as service discovery automated rollouts and self healing was highlighted along with a comparison between Docker Swarm and Ks Additionally the essential components of a Ks cluster including the control plane and node components were explored If you want to stay up to date on Ks I highly recommend you follow Daniele Polencic and subscribe to Learn Kubernetes weekly |
2023-07-25 21:14:07 |
| ニュース |
BBC News - Home |
Chancellor has concerns as NatWest boss Dame Alison Rose admits 'serious error' |
https://www.bbc.co.uk/news/business-66308627?at_medium=RSS&at_campaign=KARANGA
|
Chancellor has concerns as NatWest boss Dame Alison Rose admits x serious error x Dame Alison Rose admitted a serious error in talking about Nigel Farage s relationship with its private banking arm Coutts |
2023-07-25 21:47:31 |
| ニュース |
BBC News - Home |
Brussels bombers found guilty after long murder trial |
https://www.bbc.co.uk/news/world-europe-66299186?at_medium=RSS&at_campaign=KARANGA
|
bombings |
2023-07-25 21:02:16 |
| ビジネス |
ダイヤモンド・オンライン - 新着記事 |
米空軍の長距離輸送機、「中国抑止」主眼に構想 - WSJ発 |
https://diamond.jp/articles/-/326694
|
長距離 |
2023-07-26 06:19:00 |
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