2015年1月17日 星期六

Google神盾 | 保護港受攻擊網站 | 助抵禦國家級黑客 | 保障言論自由

二○一四年,香港成为分布式阻断服务攻击(DDoS)的国际焦点。网络保安公司CloudFlare透露,香港在雨伞运动期间曾录得破世界纪录的每秒500GB攻击,有网站服务器更每秒接获逾二点五亿次系统查询,相等于平日全球互联网每秒查询量。国家级的攻击亦令Google等国际企业出手相助,透过神盾计划(Project Shield)「收容」被攻击的民间网站,保障网上言论自由。


壹传媒计算机系统去年十月十三日被黑客入侵,令《苹果》网站、手机程序甚至内部电邮系统都一度瘫痪。黑客其后又发动二十四小时DDoS攻击,透过网上指令,要求数千、甚至数万部中了木马病毒的网民计算机或电视机顶盒等网络装置,同时向《苹果》网站不断发出系统查询(DNS requests),终令网站不胜负荷而瘫痪。


雨伞运动时受袭规模创纪录


网络公司CloudFlare在雨伞运动期间获邀协助部份本地网站抵御攻击,行政总裁Matthew Prince去年十一月接受美媒《福布斯》访问,直指是次攻击规模「较以往见过最大型的网络攻击更加前所未见」,最高



Google神盾 | 保護港受攻擊網站 | 助抵禦國家級黑客 | 保障言論自由

2015年1月10日 星期六

ps


這輯在 Youtube 上共有五季、50 集的「Photoshop Playbook」系列,被喻為 PS 聖經,其背後的人物,就是 Photoshop 的發言人,同時為攝影師、作家等多重身份的 Bryan O’Neil Hughes,他早前分享到這個系列在去年的成功,已獲得超過 130 萬瀏覽次,共看了 3,200,000 分鐘!


據描述,這系列影片回答了最主要、最常見的修圖問題,例如以下五段就是瀏覽次最高的影片︰


Making Fine Hair Selections


Selective Focus


How to Create Animated GIFs


Removing Objects From Images (Advanced)


How to Add a New Sky — Compositing Basics


趁這個周末,好好去 Youtube 看看這系列吧,每一季 (10集) 加起來只是大約 40 多分鐘,一晚就可以完全看完呢。


第一季


第二季


第三季


第四季


第五季



2015年1月4日 星期日

2015 IT Trend

2015_IT_Trends

2015_IT_Trends


 


1. Computing Everywhere


With the continued advancement in smart-phone technology, Gartner assesses that an increased emphasis on serving the needs of the mobile user in diverse contexts and environments, as opposed to focusing on devices alone. Gartner posits that smart-phones and wearable devices are part of a broader computing offering to include connected screens in the workplace and in public spaces. User experience design will be of critical importance.


 


2. The Internet of Things (IoT)


The Internet of Things will continue to expand, propelled by the ubiquity of user-oriented computing. Gartner posits that this will be replicated both in industrial and in operational contexts, as it will be the focus of digital business products and processes. Embedding technology more deeply will create touch points for users everywhere. This will form the foundation of digital business.


 


3. 3D Printing


The cost of 3D printing will decrease in the next three years, leading to rapid growth of the market for these low-cost machines. Industrial use will also continue its rapid expansion. Gartner highlights that expansion will be especially great in industrial, bio-medical and consumer applications, highlighting the extent to which this trend is real, proving that 3D printing is a viable and cost-effective way to reduce costs through improved designs, streamlined prototyping and short-run manufacturing.


 


4. Advanced, Pervasive, Invisible Analytic


Analytic will continue to advance due to the Internet of things and the embedded devices that trend will continue to foster. Vast pools of structured and unstructured data inside and outside organizations will continue to be generated. Gartner points out that every app will need to be an analytic app. The analysis also concludes that big questions and big answers are more important than big data.


 


5. Context-Rich Systems


Embedded intelligence that is ubiquitous combined with pervasive analytics will foster the development of systems that are alert and responsive to surroundings. Gartner highlights that context-aware security is an early application of this trend, but that others will emerge.


 


6. Smart Machines


Analytic combined with an understanding of context will usher in smart machines. Advanced algorithms will lead to systems that learn for themselves and act upon those leanings. Gartner notes that machine helpers will continue to evolve from the existing prototypes for autonomous vehicles, advanced robots, virtual personal assistants and smart advisers. The analysis goes on to speculate that the smart machine era will be the most disruptive in the history of IT.


 


7. Cloud/Client Architecture


Mobile computing and cloud computing continue to converge and lead to the growth of centrally coordinated applications that can be delivered to any device. Gartner notes that cloud computing is the foundation of elastically scalable, self-service computing for both internally and externally facing applications. Apps that use intelligence and storage of client device effectively will benefit from lowering bandwidth costs, coordination and management will be based on the cloud. The analysis goes on to note that over time applications will evolve to support simultaneous use of multiple devices. In the future, games and enterprise applications alike will use multiple screens and exploit wearable and other devices to deliver an enhanced experience.


 


8. Software-Defined Infrastructure and Applications


Agile development methods for programming of everything from infrastructure basics to applications is essential to enable organizations to deliver the flexibility required to make the digital business work. Software defined networking, storage, data centers and security are maturing. Application programming interface (API) calls render cloud services software configurable, and applications have rich APIs to access their function and content programmatically. Gartner notes that in order to deal with the rapidly changing demands of digital business with demand shifts both up and down require computing to move away from static to dynamic models.


 


9. Web-Scale IT


Gartner notes that more companies will think, act, and build applications and infrastructure in the same way that technology stalwarts like Amazon, Google GOOGL -0.26%, and Facebook do.  There will be an evolution toward web-scale IT as commercial hardware platforms embrace the new models and cloud-optimized and software-defined methods become mainstream. Gartner notes that the marriage of development and operations in a coordinated way (referred to as DevOps) is the first step towards the web-scale IT.


 


10. Risk-Based Security and Self-Protection


Lastly, the analysis concludes that security will remain an important consideration through this evolution toward the digital future, but it should not be so heavy-handed as to impede progress. As many companies have recognized that 100 percent security solutions are not feasible, this will become more mainstream, and more sophisticated meathods of risk assessment and risk mitigation from a process and tool perspective will be implemented. Gartner notes that perimeter defense will be broadly recognized as inadequate, and multi-faceted approaches will be devised.  Security aware application design, dynamic and static application security testing, and runtime application self-protection, combined with active context-aware and adaptive access controls will all be necessary.


 



2015 IT Trend