免費的Jupiter notebook

https://www.dataschool.io/cloud-services-for-jupyter-notebook/

Facebook 疑似被入侵的處理

今早我的email 信箱收到一封信，要我輸入一組密碼來登入Facebook, 但我很明確那不是我，
一開始懷疑是不是釣魚信，但看一下寄信的資料確定不是釣魚信，就趕緊登入Facebook
然後到我的帳號安全與登入頁面去查看登入的裝置，果然發現有一台來至於高雄的iphone 6 plus 手機嘗試登入，當滑鼠點到他時，會出現該裝置的ip,用Geoip查詢一下是威寶電信註冊的ip,現在是台灣之信在使用，目前尚不確定或是說不知道如何繼續追蹤下去，










https://www.geoip.co.uk/

Difference between data warehouse and data lake

The major difference is data warehouse only store  the data which were  precessing.  The data lake is store all data.   In recent mindset change of data store is all data are valuable.  Don’t need to extractor  the data before stored them.  Data lake can help to deal with

1) non structural data

2) data storage cost...

3) don’t need schema.  The schema only adopt when read them.

 

Forbe identifier 4 mature level in his article  of The data lake Dream

1) No hadoop

2)with hadoop

3)all data parking in hadoop

4)Enhance data security and data governance 

三陽(2206): 外資借券餘額連續減少,是不是即將迎來大行情？

An introduction of networking terminology: Interfaces, protocols and service

In OSI reference model, it has clear define “interfaces, protocol and service"

 

Interface:   

Interfaces are networking communications points for your computer. Each interface is associated with a physical or virtual networking device.

 

Protocol.

Protocol usally in the same layer

 

Services:

The entities in layer implement a service used by layer n+1.

Layer n : service provider.

Layer n+1:service user