Dan York

Dan York

Author and Speaker on Internet technologies for over 20 years
Joined on April 25, 2007 – United States
Total Post Views: 85,346

About

Dan York focuses on explaining the changes going on all around us within communication technology and practices.  An author of multiple books on networking, security, IPv6 and Linux, Dan frequently frequently presents at industry conferences and events and has blogging and writing online for over 11 years.  Today Dan serves the Internet Society as the Senior Content Strategist for the "Deployment & Operationalization Hub (DO Hub)" project, seeking to help service provides, companies and individuals more quickly deploy Internet technologies such as IPv6 and DNSSEC.  Separately, Dan is also the Chairman of the global Voice Over IP Security Alliance (VOIPSA).

Previously Dan worked for Voxeo Corporation heading up the company's communication through both traditional and new/social media. Prior to that, Dan served in the Office of the CTO for both Voxeo and before that Mitel focused on analyzing/evaluating emerging technology, participating in industry standards bodies and addressing VoIP security issues. Since the mid-1980's Dan has been working with online communication technologies and helping businesses and organizations understand how to use and participate in those new media. . His most recent books are Migrating Applications to IPv6 and The Seven Deadliest Unified Communications Attacks.  His most relevant writing to CircleID readers can be found at DisruptiveTelephony.com More information about Dan can be found at danyork.com and danyork.me

Except where otherwise noted, all postings by Dan York on CircleID are licensed under a Creative Commons License.

Featured Blogs

World IPv6 Launch: This Time It Is For Real! - June 6, 2012

No more "test flights" ... 2012 is the year that IPv6 gets permanently deployed! That is the message of "World IPv6 Launch," announced today by the Internet Society, Google, Facebook, Cisco, Microsoft, Comcast, AT&T, Time Warner Cable and a whole host of other companies. While last year's successful World IPv6 Day was all about testing how your site or service worked with IPv6, this year's World IPv6 Launch is about enabling IPv6 permanently as of June 6, 2012 (or earlier). more»

Will We See IPv6-Enabled Consumer Devices at CES This Week?

What kind of IPv6 support will we see in consumer devices at the massive Consumer Electronics Show (CES) happening in Las Vegas this week? The show is already underway and much of the tech media is already writing in breathless prose about the latest tablets, notebooks and zillions of other consumer devices making their debut at CES. While the bright-shiny-object-chasing side of me definitely notices those articles, my own interest is on a deeper and far more technical level. more»

SIP Co-Author Henning Schulzrinne Appointed CTO of the FCC

In a move to be celebrated by many of us with a VoIP background, the United States Federal Communications Commission (FCC) announced today the appointment of Henning Schulzrinne as Chief Technology Officer (CTO). As the release indicates, Henning's role as CTO will be to: ...guide the FCC's work on technology and engineering issues, together with the FCC's Office of Engineering and Technology. more»

2nd FCC Workshop on PSTN Transition Streaming Live Today

Today, December 14, 2011, the US Federal Communications Commission (FCC) is holding the second of two workshops on the transition of the PSTN to new technologies. The workshop started streaming live this morning at 9:30am US Eastern. The FCC's note about the workshops mentions that people watching the live stream can send in questions to panelists using either of two methods... more»

Video Recording Now Available of FCC Dec 6th Workshop on PSTN Transition

If you missed attending or listening to the live stream of the US Federal Communication Commission's (FCC) workshop on the transition of the Public Switched Telephone Network (PSTN) to new technologies that was held last week on December 6th, the FCC has very nicely made a video recording available from their website for viewing... FCC Chairman Julius Genachowski also appeared briefly to provide a few comments. more»

Borders, In Bankruptcy, Aims To Sell 65,536 IPv4 Addresses at $12/Address

With IPv4 address exhaustion upon us, it appears that the going market rate for IPv4 addresses is now $12/address. Over at the Register, Kevin Murphy reports on a bankruptcy filing from Borders seeking to sell a /16 block of to healthcare software vendor Cerner for a total of $786,432. At $12 per IPv4 address, this sets a new public record given that the previous high was Microsoft's acquisition of a block of Nortel IPv4 addresses... more»

FCC to Hold Two December Workshops on PSTN Transition to New Technologies

The US Federal Communications Commission (FCC) recently issued a public notice that it will be holding two workshops on the transition of the public switched telephone network (PSTN) to "new technologies" such as voice-over-IP (VoIP). The workshops will be held on December 6 and 14, 2011, at the FCC's office in Washington, DC. The public notice states the goal as... more»

China Passes 900 Million Cell Phone Users!

Fascinating stats out of an article at TheNextWeb this week: China has become the first country to reach the 900 million mobile phone user milestone after amassing about 11 million mobile phone users in April alone, according to a report by the country's Ministry of Industry and Information Technology. more»

Skype Issues Official Statement About the End of Skype for Asterisk

Before writing my story yesterday about Skype killing off Skype For Asterisk, I had reached out to Skype's PR agency to see if there was any statement from Skype. There wasn't at the time, but today they sent over this statement from Jennifer Caukin, a spokeswoman for Skype... more»

The End of the "Skype as Bandit" Era

And so it ends... Skype was always always a fun company to write about because they were always a bit of a rogue. The scrappy little startup that took on the megacorps of the telecom industry... and won in so many ways... look at their leading % of international calls... or the fact that per-minute call costs are now very clearly being commoditized down to zero... more»

Skype Takes a SIP of Cisco With UC500 Skype For SIP Certification

It's been a busy month for the folks in the Skype For SIP project. First, back on September 9, Skype announced ShoreTel interoperability. Then last week on September 17, Skype announced interop with the open source SIPFoundry sipXecs product. Today, though, is Skype's biggest announcement yet... more»

Is the New ".Tel" Domain More than Just a Pretty Web Interface to DNS?

Is the new ".tel" domain launching today more than just a pretty web interface to DNS? Is it something really unique? Is it a new service that couldn't be easily replicated elsewhere? In case you haven't been following the subject, a company called Telnic has launched a new top-level DNS domain ".tel" today. Today, December 3rd, is the launch of the "Sunrise" period where companies can (for a high price) obtain the ".tel" domain associated with their trademark. more»

Do the IM Protocol Wars Even Matter?

Do you care any more about zillion different IM services? Do you care about the IM protocol wars that have plagued the usage of IM for the last years? Odds are that if you are an IM user like me, you probably don't. Why not? Simple... we've unified the IM services on the client side and basically stopped caring about the various services and protocols. I was reminded of this fact this morning when I received a message saying that an update was available for Adium on my Mac that solved a really annoying disconnection problem with Yahoo!Messenger. more»

Telephony is Disrupted Because Voice No Longer Matters… (As Much)

Does "voice" communication really matter as much today in business communications? Think about it. When you need to reach someone today, what do you do? Do you call them on the phone? Or do you send them email? Or a text message? or IM? I know personally that my normal communication flow usually goes something like this: Instant Messaging; I check first to see if I can reach the person on some form of IM... SMS; if the matter is relatively important... E-mail/Facebook/Twitter/other; Previously that would have just been email, but these days I find myself very often sending messages via Facebook or Twitter... more»

Google Acquires Grandcentral… and Enters Further into the PSTN Side of Telecommunications

News breaking out today is that Google has acquired GrandCentral for something around $50 million. GrandCentral is a service that gives you one phone number that can ring multiple numbers, provide one common voicemail - and all sorts of the other features (see "howitworks" for a list of features)... So will we ultimately see voicemail inside of Gmail? One would assume that we will eventually see integration with GoogleTalk... more»

ARIN Provides Latest Word on Need to Move to IPv6: Will Anyone Heed the Warning? (Does anyone care?)

NetworkWorld is running an article today that talks about the announcement from ARIN (the American Registry for Internet Numbers) of the ARIN Board resolution calling upon ARIN to no longer be "neutral" in the IPv4 vs IPv6 space and instead work to actively encourage migration to IPv6... Until now, ARIN and the other RIRs have generally been fairly neutral in the IPv4 versus IPv6 debate and have not shown a preference in allocation, but this announcement from ARIN shows the first signs of change. more»

Skype as a Platform for Secure VPN Tunnels?

Since Skype has an open client-side API, why not use it as a transport to tunnel VPN traffic and blow through firewalls to connect you to a remote system? That's the idea raised by Peeter P. Mõtsküla in his Skype Developer Blog entry: "Idea: skypetunnel". For instance, have a Skype client running on your home machine logged in as one account. Have Skype on your laptop on another account. Initiate a connection between the two of them and wind up with secure, encrypted access through the firewall from wherever you are. Being peer-to-peer, there would be no central servers or infrastructure required (outside the usual Skype p2p cloud.) This would require, of course, a yet-to-be-created "extra" that connected into the Skype client API and was installed on both systems...but that was the point of the article... more»

VoIP/IP Telephony in Estonia: Disrupted by Botnets?

With my post earlier this month about the possibility of SIP botnets [also featured here on CircleID], I've had a number of people asking about more information and wondering about the possible impacts. And while I will write more on botnets in general, as far as the potential impact of "botnets" in general, one need only look over at the current situation in Estonia... Now, perhaps Russia is behind the attack... perhaps not. There are obviously much larger political issues going on between the two states. more»

Ready or Not… Here Come the IRC-Controlled SIP/VoIP Attack Bots and Botnets!

A story... ZZZ Telemarketing (not a real name) is locked in a heated fight with their bitter rival, YYY Telemarketing (also not a real name), to win a very large lead generation contract with Customer X. Customer X has decided to run a test pitting the two companies against each other for a week to see who can generate the most leads. The ZZZ CEO has said to his staff that it is "do or die" for the company. If they fail to win the contract, they will have to shut down -- they need to do "whatever it takes" to win over YYY. A ZZZ staffer discovers that part of why YYY has consistently underbid them is because they are using SIP trunks to reduce their PSTN connection costs. But the staffer also discovers that YYY is using very cheap voice service providers who run over the public Internet with no security... more»