Tags: Internet

The Story of Getting SSH Port 22

The SSH (Secure Shell) port is 22. It is not a co-incidence. This is a story I (Tatu Ylonen) haven't told before. I wrote the initial version of SSH in Spring 1995. It was a time when telnet and FTP were widely used. Anyway, I designed SSH to replace both telnet (port 23) and ftp (port 21). Port 22...
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The Architecture of the Web Is Unsafe for Today's World

Twenty-eight years ago, British computer scientist Tim Berners-Lee proposed a system to link text documents across a computer network. It changed the way the world communicates and does business. From its humble beginnings, the Internet has become a complex, dynamic, and heterogeneous environment....
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A 1986 Bulletin Board System Has Brought the Old Web Back to Life in 2017

Today, many can be forgiven for thinking that the digital communications revolution kicked off during the mid-1990s, when there was simply an explosion of media and consumer interest in the World Wide Web. Just a decade earlier, however, the future was now for the hundreds of thousands of users...
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TFTP
In this final article in our TFTP series, we take a closer look at usage and moving things around.

Trivial Transfers with TFTP, Part 3: Usage

In previous articles, we introduced TFTP and discussed why you might want to use it, and we looked at various configuration options. Now let’s try and move some files around. You can do this with some comfort now that you know how to secure your server a little better. Testing 1, 2, 3 To test your...
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Google Brings SDN to the Public Internet

Google unveiled to the outside world its peering edge architecture — Espresso. At the Open Networking Summit (ONS), Google Fellow Amin Vahdat said Espresso is the fourth pillar of Google’s software-defined networking (SDN) strategy. Its purpose is to bring SDN to the public Internet. Espresso,...
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Sir Tim Berners-Lee Receives 2016 ACM A.M. Turing Award

ACM named Sir Tim Berners-Lee, a Professor at Massachusetts Institute of Technology and the University of Oxford, the recipient of the 2016 ACM A.M. Turing Award. Berners-Lee was cited for inventing the World Wide Web, the first web browser, and the fundamental protocols and algorithms allowing the...
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Simulate the Internet with Flashback, a New WebDev Test Tool from LinkedIn

The internet is a harsh mistress. Sites go down, change without notice, or even just disappear entirely. The web — are you sitting down? — is not 100 percent reliable. This means that testing a project that has external dependencies, things can fail that aren’t even your bugs. What’s a software...
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Three Challenges for the Web, According to its Inventor

Today marks 28 years since I submitted my original proposal for the world wide web. I imagined the web as an open platform that would allow everyone, everywhere to share information, access opportunities and collaborate across geographic and cultural boundaries. In many ways, the web has lived up...
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Today's Leading Causes of DDoS Attacks

Last fall, we saw the biggest distibuted denial of service (DDoS) attack ever. This year we'll see even bigger ones. According to Akamai's latest State of the Internet Security report, here's what's behind them. First, you should know that while the total DDoS attacks only increased by 4 percent...
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IoT security
At ELC + OpenIot Summit, Adam Englander will discuss some practical steps developers can take to make their devices less vulnerable to attackers.

Practical Steps for Protecting IoT Devices

The security of IoT devices is a high priority these days, as attackers can use Distributed Denial of Service (DDoS) attacks to target them and wreak havoc on a system. “Due to the sheer volume of unconnected devices, it can take hours and often days to mitigate such an attack,” says Adam...
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