VPN如何演化?A Look Into the Chinese VPN Market

經過時代的改變,在以前的時代中,當想要進行遠程訪問時,最傳統的做法就是租用DDN(數字數據網)專線或是經過中繼,這樣的通訊傳輸方式必然高產生昂貴的通訊和維護費用。而對於移動族群與遠端客戶而言,一般都會通過撥接網路進入區域網路,但這樣必然會帶來安全上的隱憂。


現在只要外地員工訪問到內部網路資源,即可直接利用大陸VPN的解決方法,主要就是在內部網路中架設一台VPN伺服器。當外地員工在當地連上網際網路以後,只要通過網際網路連接VPN伺服器,再通過VPN伺服器進入企業內部網路。為了證實數據安全性,VPN伺服器與客戶端之間的通訊數據都進行了加密處理。當有了加密處理,就可以認為數據是在一條專用的數據鏈路上進行安全傳輸,就如同專門架設社了一個專用網路一樣。但實際上VPN使用的是網際網路上的公用鏈路,稱為虛擬專用網路。其實可以說是利用加密技術在公共網遇上封裝出一個數據通訊隧道。有了VPN技術,用戶無論是在外地出差或是在家中辦公,只要能上網際網路就能利用VPN訪問內部網路資源,這就是VPN在企業中應用如此流暢的原因。

Brandon Roptati’s CEO of Eversoft’s MMA Debut

Brandon Ropati at this past Saturday’s Industry of Combat New Zealand 16 event.

Taking place in Ropati’s hometown of Auckland, multiple reports have surfaced of an extremely controversial decision that ultimately declared Ropati the victor.

“Basically I was robbed of a victory that should have been [scored] 30-26 from the best I can tell,” Alvey told US Combat Sports. “But thanks to some poor judging I lost a majority decision 29-27…We will be contesting this loss however we can because of the obviously biased judging.”

While footage of the fight is still unavailable to this point, ICNZ’s personal Facebook account described the action in a form of live play-by-play coverage. Afterwards, Alvey also shared his personal account of the action and importance of using headgear

“Throughout the 15-minute fight I was hit four times and struck three times illegally – twice in the eyes and once in the groin and a point was deducted for the second eye gouge,” said Alvey. “As it stands today I have no bruising anywhere outside of the finger pokes.

“The third round I literally had him turn his back to me and run away,” Alvey continued. “The second round I reversed his takedown and ended on top of him for 20-plus seconds of ground and pound and the first round he didn’t land a shot.”

If it stands, the loss would be Alvey’s second tough decision loss in his previous three matchups. But no matter how this plays out, “Smile’N Sam” insists he will never admit defeat from Ropati at ICNZ 16.

“For me, this will never go down as a loss and I cannot sleep for lack of being able to wrap my brain around how three individuals could so deliberately take away a win just to give it to their countryman. Had the minority judge’s decision prevailed in it being a draw, we would have gone another round. How they could not even give me the last chance to finish him is beyond me.”

Technology Making Dentistry Easier

 

dental technology

Technology worked its way into everyday life in a way that makes us wonder if in some decades we will have spare parts for medical purposes much like in the same way we have for cars or appliances. Health professionals from various domains are taking advantage of the new available techniques in their endeavor to make treatments easier, shorten the recovery period and perform the medical act with as little pain as possible.

Dentistry is one of the most frightening parts of medical care for both adults and children, therefore any type of treatment that promises fewer injections and less drill work sounds extremely promising and worth trying, putting costs aside.

The most important aspects of dental work are customization and time as a recent article explains about a dentist’s choice to use 3D scanning and printing:

“Christchurch dentist and early adopter George Glausiuss bought his 3D camera, CAD design software, 3D milling machine and oven in 2011 for […] $250,000. For the patient, Glausiuss’ ability to complete two crowns in one appointment meant he saved an extra two hour return trip to Christchurch from his home in Banks Peninsula. In the past, Glausiuss would have taken a mould and given him temporary crowns – requiring a return appointment in two weeks time.”

This new technique in not embraced by all dentists, as most are not ready to make a quarter million dollar investment in technology, neither are emotionally prepared to let go of the small drill and the years of hard work practicing to perfection and just hand over the credit to a computer.

Yet, the ability to use just a tooth-brush type of instrument which is painless, a printer and some simple dental work to give the patient a fully customized solution in a matter of hours means a whole new era.

Another milestone is represented by the pioneering technique which promises pain free cavity elimination and self-healing of teeth in a natural way, which, applied early enough to a cavity could eliminate completely the need of mending it through classical procedures including anesthesia, drilling and filling.   

Named EAER which is short for Electrically Assisted Enhanced Remineralisation this revolutionary procedure means a deep cleaning of the affected tooth and spraying on minerals under electrical pulse to ensure assimilation.

Dr Rebecca Moazzez explains the reasoning behind the superiority of this technique:

getting a cavity and having it filled is a vicious cycle, because they’re not made to last forever so it means a patient will always have to get it touched up and refilled, forever. The new procedure won’t replace the effects of regular tooth brushing and cavity fillings, but by repairing slightly damaged teeth, this team of scientists may have found a painless way to stop cavities from maturing.

If these practices seem taken out a science fiction movie and you can’t expect to find them at your local dentist in the next few years, there are still some improvements of which you can take advantage even in small family practices.

We have spoken with Dr.Pejman, a Pediatric Dentist in Austin and an expert in digital radiography about the other benefits of this technique, apart from being just more ecological, since the pictures are sent to a computer and stored online. The patient has to undergo less exposure, making this the best way to treat children who can withstand less X-rays.

However, the most important benefit of going digital resides in the fact that the patient becomes involved in the medical act as they can understand exactly what is going on by comparing before/after radiographs in a way similar to weight loss pictures, getting more confidence in their dentists and hopefully becoming more relaxed about the procedures.