Tag Archives: cloudwatch

AWS PrivateLink

AWS 計畫把先前設計的 VPC Endpoint 都併到 AWS PrivateLink 裡,統一管理:「New – AWS PrivateLink for AWS Services: Kinesis, Service Catalog, EC2 Systems Manager, Amazon EC2 APIs, and ELB APIs in your VPC」。 Today we are announcing AWS PrivateLink, the newest generation of VPC … Continue reading

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Route 53 的 Query 記錄

Amazon Route 53 可以收 query log 了,會丟到 CloudWatch Logs:「Amazon Route 53 Announces Support For DNS Query Logging」。 If you are using Amazon Route 53 as your public, authoritative DNS, you will now have the capability to easily log DNS queries … Continue reading

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AWS CloudWatch 推出秒級的記錄功能

AWS CloudWatch 推出了秒級的記錄功能:「New – High-Resolution Custom Metrics and Alarms for Amazon CloudWatch」。 從一分鐘變成一秒鐘讓之後的調整以及 debug 好用很多... 不過這次支援秒級的是 custom metrics,原先 AWS 自家服務的支援不在這次範圍: Today we are adding support for high-resolution custom metrics, with plans to add support for AWS services over time. Your … Continue reading

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用 Amazon Elasticsearch 看 VPC Flow Logs

在「How to Visualize and Refine Your Network’s Security by Adding Security Group IDs to Your VPC Flow Logs」這篇雖然是講特定功能,但還是把怎麼架設從頭到尾都講了一次... 比較特別的幾張圖: 然後再回來看怎麼串:

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玩 CloudWatch Logs

看到「Study Notes - CloudWatch」這篇後想到可以把 CloudWatch Logs 寫下來... 目前的玩法是參考「Quick Start: Install and Configure the CloudWatch Logs Agent on a Running EC2 Instance」這篇設定 IAM Role 的權限,然後安裝 agent,最後設定要丟什麼上去,其實這塊還蠻簡單的... 然後用 kennu/cwtail 這隻程式負責幫你跑出像 tail -f 的效果。像是 cwtail --profile=myaccount -e -f -s -t /var/log/syslog 這樣的用法 (參數的意義可以直接跑 … Continue reading

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CloudWatch 的降價

更早之前就公告了,但剛剛才翻到:「AWS Price Reduction – CloudWatch Metrics」。 CloudWatch 從 2011 年這次的降幅算比較大的,最低的降幅都有 40%,而超過一萬個 metrics 的部分則是 80%,然後不同級距有不同降幅,最高到 96% (也就是原來的 4% 價錢)... Amazon EC2 的 CloudWatch 用了七個 metrics,所以如果有開 CloudWatch 進階版本的情況下,價錢從 $3.50 降到 $2.10: If you have EC2 Detailed Monitoring enabled you will also see … Continue reading

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將 collectd 收集到的資料寫到 CloudWatch 裡

AWS 對 collectd 推出的 plugin,可以將 collectd 收到的資料丟到 Amazon CloudWatch 裡:「New – CloudWatch Plugin for collectd」,GitHub 的連結在「A collectd plugin for sending data to Amazon CloudWatch」這邊。 丟上去以後就可以在 AWS 的 dashboard 上看了:

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CloudWatch 可以看 EC2 Instance 的封包進出數量了

CloudWatch 可以監視 EC2 instance 的封包數量了:「Announcing New CloudWatch Metrics for EC2 Instances」: The new metrics are NetworkPacketsIn and NetworkPacketsOut. These new metrics provide insight into the number of network packets flowing to and from an EC2 instance. 這樣對照流量時就可以知道平均封包大小了...

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