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# Amazon EC2 articles

Amazon EC2は、仮想サーバーを提供するIaaSサービスです。柔軟なコンピューティング能力を必要に応じて利用できます。

AWS Security Bulletin 2026-137-AWS (CVE-2026-99999) Does Not Affect Standard EC2 Instances: A Look at the Scope of Impact

2026.10.17

Settings That Are Carried Over and Settings That Need to Be Reconfigured When Creating an EC2 Instance from an AMI (2026 Edition)

林睦記 / Mutsuki Hayashi

2026.10.08

I tried out the new "shared tags" feature for Amazon EC2 AMIs

2026.10.07

I tried adding an MCP server to a DevOps Agent and investigating the OS of EC2

2026.10.01

Comparison of 3 DNS Configuration Methods When Joining EC2 to On-Premises Active Directory

2026.09.30

[Quick Tip] When I wrote Japanese comments in the user data of a Japanese Windows EC2 instance, not a single line of the script was executed

林睦記 / Mutsuki Hayashi

2026.09.30

I actually measured the performance of t8i.medium and t3.medium with Next.js build and OpenSSL

2026.09.29

[Undocumented] VM-Generation ID is available on Nitro generation EC2 instance types

2026.09.28

Restore EC2 from AWS Backup recovery point to a different AZ with a specified private IP

林睦記 / Mutsuki Hayashi

2026.09.28

[Quick Tip] Checking the behavior when configuration application fails with CloudWatch Agent on Windows

林睦記 / Mutsuki Hayashi

2026.09.24

I launched a GA EC2 T8i instance in the Tokyo region and checked CPU information and other details

2026.09.18

[Update] You can now restrict the instance types that can be launched with Amazon EC2 AMIs

2026.09.05

I tried a two-stage automatic recovery of Nginx using EC2 application status checks and Step Functions

2026.09.05

I checked the CPU and CloudTrail information of EC2 C9g instances that became available in the Tokyo region

2026.09.05

I tried automatically recovering EC2 instances that failed Status Checks using Step Functions without Lambda

2026.09.05

I checked the CPU information on EC2 M9g instances (Graviton5) that became available in the Tokyo region

2026.09.05

ちょっと話題の記事

Amazon Linux 2027 has gone into public preview, so I tried launching it on EC2 to check it out

2026.09.04

I tried out CloudWatch Database Insights with support for PostgreSQL on EC2

2026.09.03

EC2 R9g instances (Graviton5) became GA, so I checked the CPU information and other details

2026.09.02

Memory usage control was added to Mountpoint for Amazon S3, so I checked the number of files that can be opened simultaneously for writing

2026.08.30

I tried adding CloudFront to a browser-only Claude Code environment (EC2 + code-server + Bedrock) and making it possible to install extensions too

林睦記 / Mutsuki Hayashi

2026.08.25

[Update] Nested virtualization is now supported in Amazon WorkSpaces Personal

2026.08.19

I built a Claude Code environment usable only in a browser using EC2 + code-server + Bedrock

林睦記 / Mutsuki Hayashi

2026.08.13

AgentCore Runtime Instances have been released!

2026.08.09

Check if switching AmazonEC2RoleforSSM to AmazonSSMManagedInstanceCore causes any issues

2026.07.31

I attended the JAWS-UG Yokohama #102 AWS Service Termination Memorial LT Event and performed a memorial service for the AWS services that couldn't pass on to the afterlife #jawsug #jawsugyokohama

Guri / Hajime Oguri

2026.07.17

EC2 had mac-m3ultra.metal instances added, so I tried checking the specs and pricing using the Pricing API

2026.07.14

I tried replacing the root volume using the new "Direct EBS Volume Specification" feature of EC2 Replace Root Volume

2026.07.11

I tried the new EC2 Auto Scaling feature "reservations-then-balanced" for AZ distribution with capacity reservation priority

2026.07.03

Tried enforcing the use of approved AMIs with the new Amazon EC2 feature AMI Watermarks

2026.06.25

I tried generating and validating an intentionally vulnerable EC2 environment CloudFormation template with Kiro's AI-DLC

2026.06.14

I tried automating the deployment of ACM exportable certificates with AWS Workload Credentials Provider

2026.06.12

I tried out the new metadata fields (next hop, EC2 tags) in VPC Flow Logs

2026.06.12

I tried running 3ds Max 2024 with AWS Deadline Cloud's CMF

越井琢巳 (Koshii Takumi)

2026.06.11

EC2 M9g instances (Graviton5) have become GA, so I tried checking CPU information and other details

2026.06.11

Performance Measurement of Amazon S3's New Checksum Algorithm on the Latest Generation of Intel/AMD/Graviton4 EC2

2026.04.24