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用 Percona Monitoring and Management (PMM) 蒐集 PostgreSQL 的數據

難得在 Percona 的 blog 上看到專門談 PostgreSQL 的文章:「Collect PostgreSQL Metrics with Percona Monitoring and Management (PMM)」。

其實是透過 Prometheus 疊出來的:

Starting from PMM 1.4.0. it’s possible to add monitoring for any service supported by Prometheus.


3. In the next dialog, choose Prometheus as a data source and continue.


AWS 推出 Amazon GuardDuty 進行內部網路監控

AWS 推出 Amazon GuardDuty 監控內部網路:「Amazon GuardDuty – Continuous Security Monitoring & Threat Detection」。

從示意圖可以看到結合了許多 log 資料,然後綜合判斷:

In combination with information gleaned from your VPC Flow Logs, AWS CloudTrail Event Logs, and DNS logs, this allows GuardDuty to detect many different types of dangerous and mischievous behavior including probes for known vulnerabilities, port scans and probes, and access from unusual locations.

所以連 Bitcoin 相關網站也當作條件之一 XD

開了相當多區 (相較於之前 AWS Elemental MediaOOXX 系列...):

Amazon GuardDuty is available in production form in the US East (Northern Virginia), US East (Ohio), US West (Oregon), US West (Northern California), EU (Ireland), EU (Frankfurt), EU (London), South America (São Paulo), Canada (Central), Asia Pacific (Tokyo), Asia Pacific (Seoul), Asia Pacific (Singapore), Asia Pacific (Sydney), and Asia Pacific (Mumbai) Regions and you can start using it today!


前陣子看到的這篇報導,在討論大規模的監控帶來的影響:「Mass surveillance silences minority opinions, according to study」。而 Bruce Schneier 這幾天也提到了這個問題:「Mass Surveillance Silences Minority Opinions」。

原始的論文出自「Under Surveillance: Examining Facebook's Spiral of Silence Effects in the Wake of NSA Internet Monitoring」這邊。

論文作者從 Facebook 上的行為來分析,說明大規模的監控會使得少數意見不敢發聲,對於社會多元性的負面影響。

Amazon RDS 提更完整的監控機制

這次 Amazon RDS 發表了更細的監控機制,包括了 MySQL 5.6、MariaDBAurora 這幾個產品線:「New – Enhanced Monitoring for Amazon RDS (MySQL 5.6, MariaDB, and Aurora)」。


差不多是 SmokePing 可以提供的範圍,算是補的更齊全,讓找問題時的資料更多。不過顆粒細度可以到一秒鐘:


不過要注意的是,t1.micro 與 m1.small 不支援:

It works for MySQL 5.6, MariaDB, and Amazon Aurora, on all instance types except t1.micro and m1.small.