幹壞事是進步最大的原動力
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 received by Amazon Route 53 through integration with CloudWatch Logs.
這樣可以拿來分析了...
在「Homebrew Analytics Install On Request Events — Homebrew」這邊，Homebrew 利用了傳回來的資訊算出 2016/07/14 到 2017/07/14 的安裝套件次數，列出前一千名。(我是把他關掉，因為隱私問題不想要傳出去... 參考「Homebrew 會將安裝資訊送到 Google Analytics 上」這篇。)
比較有趣的是第一名的 node 超級多，比第二名加第三名的 git + wget 還多...
拿來翻一翻還 ok，順便看一下大家用什麼...
從一開始推出的 ELB (Elastic Load Balancer)，到 ALB (Application)，現在則推出了 NLB (Network)：「New Network Load Balancer – Effortless Scaling to Millions of Requests per Second」。
有這些特性：
雖然不能確定 AWS 用的技術是什麼，但這裡面有好幾個很明顯就是 DSR (Direct Server Return) 架構的特性 (包括了限制與優點)。
另外也因為不用處理 L7 的內容，效能比起 ELB/ALB 好很多，夠大的用量下，價錢也低不少。對於不少非 HTTP/HTTPS 的應用應該很好用，就算是 HTTP/HTTPS，單純一點的應用應該也不錯...
在 GCP 推出 Standard Tier 後，KeyCDN 就利用台灣的 GCP 機房建立了 PoP：「KeyCDN Launches New POP in Taiwan」。
GCP 在台灣的 Standard Tier 價錢是：
| Source geolocation of traffic | 0-10 TB | 10-150 TB | 150-500 TB |
| From Asia | $0.11 | $0.075 | $0.07 |
KeyCDN 亞洲區頻寬的價錢則是 USD$0.12/GB，加上機器費用，有機會不虧？
主要是看到「Quick Start Update: Deploy NGINX Plus on the AWS Cloud」這篇才知道在 AWS Marketplace 上有「NGINX Plus - Amazon Linux AMI (HVM)」可以用，而且有三十天試用期可以使用：
30 Day Free Trial Available - NGINX Plus is a high performance load balancer, edge cache and origin server for web content, streaming media and API traffic. It complements the load balancing capabilities of Amazon ELB and ALB by adding support for multiple HTTP, HTTP/2, and SSL/TLS services, content-based routing rules, caching, autoscaling support, and traffic management policies. NGINX Plus for AWS is provided and supported by the original creators of NGINX web server.
所有機器的年約都是 USD$2500/year，使用 t2.{nano,micro,small} 的話因為 hourly 的價錢乘以一年後反而還比較便宜，記得別亂買...
另外這代表可以直接付錢測試功能... (或是免費，如果 free trial 還沒用)
Amazon Route 53 推出新功能，針對地區微調資源的比重：「Amazon Route 53 Traffic Flow Announces Support For Geoproximity Routing With Traffic Biasing」。
範例大致上說明了這個功能的能力，假設你在兩個點都有服務可以提供，你可以利用這個功能微調某個比率到某個點：
For example, suppose you have EC2 instances in the AWS US East (Ohio) region and in the US West (Oregon) region. When a user in Los Angeles browses to your website, geoproximity routing will route the DNS query to the EC2 instances in the US West (Oregon) region because it's closer geographically. If you want a larger portion of users in the middle of the United States to be routed to one region, you can specify a positive bias for that region, a negative bias for the other region, or both.
有點 CDN 的想法在裡面...
AWS ALB 推出直接設定 IP address 當作後端伺服器的功能：「New – Application Load Balancing via IP Address to AWS & On-Premises Resources」。
ip – Targets are registered as IP addresses. You can use any IPv4 address from the load balancer’s VPC CIDR for targets within load balancer’s VPC and any IPv4 address from the RFC 1918 ranges (10.0.0.0/8, 172.16.0.0/12, and 192.168.0.0/16) or the RFC 6598 range (100.64.0.0/10) for targets located outside the load balancer’s VPC (this includes Peered VPC, EC2-Classic, and on-premises targets reachable over Direct Connect or VPN).
這樣就能拿 ALB 當 load balancer 把部份內容接到自己機房內的伺服器群了，一種隨便串的概念... (可以透過 AWS Direct Connect 或是 VPN 直接串，所以對外的部份就直接是 AWS 端，對內要怎麼接就隨便接...)
先前 Typekit 需要使用 JavaScript，現在則是開始嘗試純 CSS 版本了：「Now in Early Access: Serve web fonts without JavaScript」。
Amazon Aurora 宣佈支援快速複製：「Amazon Aurora Fast Database Cloning」。
對於 2TB 的資料大約五分鐘就完成了：
This means my 2TB snapshot restore job that used to take an hour is now ready in about 5 minutes – and most of that time is spent provisioning a new RDS instance.
主要是得力於後端 storage 的部份可以實做 copy-on-write 架構：
By taking advantage of Aurora’s underlying distributed storage engine you’re able to quickly and cheaply create a copy-on-write clone of your database.
可以快速複製就可以很快的驗證一些事情，像是可以直接測試 ALTER TABLE 需要的時間，或是事前演練...
Amazon SES 推出了 Dedicated IP Pool：「New – SES Dedicated IP Pools」，也就是發信時可以使用自己專屬的 IP address。
Today we released Dedicated IP Pools for Amazon Simple Email Service (SES). With dedicated IP pools, you can specify which dedicated IP addresses to use for sending different types of email.
價錢其實不算貴？每個 IP 的費用是 USD$24.95/month，對於量夠大的單位可以避免被其他人影響：
Dedicated IPs are $24.95 per address per month at the time of this writing – but you can find out more at the pricing page.
不過 SES 用起來最痛的問題還是在對於收信人不存在時的 bounce rate...