Anyone that has attended a meeting of the Internet Engineering Task Force (IETF) will know that the somewhat dry topic of internet protocols is often the source of passionate disagreement. But rarely does that debate extend beyond the confines of internet engineers. That has not been the case with a new protocol which aims to make the Internet's underlying domain name system more secure by default. more
For quite a while, it looked like my prediction – one to two articles per day – was overly optimistic. By summer, there were only four new sites: Reed College, University of Oklahoma (at least, I think that that's what uucp node uok is), vax135, another Bell Labs machine – and, cruciallyy, U.C. Berkeley, which had a uucp connection to Bell Labs Research and was on the ARPANET. more
Our goal was to announce Usenet at the January, 1980 Usenix meeting. In those days, Usenix met at universities; it was a small, comaparatively informal organization, and didn't require hotel meeting rooms and the like. (I don't know just when Usenix started being a formal academic-style conference; I do know that it was no later than 1984, since I was on the program committee that year for what would later be called the Annual Technical Conference.) more
We knew that Usenet needed some sort of management system, and we knew that that would require some sort of authentication, for users, sites, and perhaps posts. We didn't add any, though -- and why we didn't is an interesting story. The obvious solution was something involving public key cryptography, which we (the original developers of the protocol: Tom Truscott, the late Jim Ellis, and myself) knew about: all good geeks at the time had seen Martin Gardner's "Mathematical Games" column... more
To understand some of our implementation choices, it's important to remember two things. First, the computers of that era were slow. The Unix machine at UNC's CS department was slower than most timesharing machines even for 1979 – we had a small, slow disk, a slow CPU, and – most critically – not nearly enough RAM. Duke CS had a faster computer – they had an 11/70; we had an 11/45 -- but since I was doing the first implementation, I had to use what UNC had. (Log in remotely? more
When we set out to design the over-the-wire file format, we were certain of one thing: we wouldn't get it perfectly right. That led to our first decision: the very first character of the transmitted file would be the letter "A" for the version. Why not a number on the first line, including perhaps a decimal point? If we ever considered that, I have no recollection of it. more
There was a planning meeting for what became Usenet at Duke CS. We knew three things, and three things only: we wanted something that could be used locally for administrative messages, we wanted a networked system, and we would use uucp for intersite communication. This last decision was more or less by default: there were no other possibilities available to us or to most other sites that ran standard Unix. Furthermore, all you needed to run uucp was a single dial-up modem port. more
Usenet -- Netnews -- was conceived almost exactly 40 years ago this month. To understand where it came from and why certain decisions were made the way they were, it's important to understand the technological constraints of the time. Metanote: this is a personal history as I remember it. None of us were taking notes at the time; it's entirely possible that errors have crept in, especially since my brain cells do not even have parity checking, let alone ECC. Please send any corrections. more
Around 2014, as Stephen (Steve) J. Lukasik proceeded well into his 80s, he began to consider ways to capture the enormous sweep of activities and history in which he was a key figure. Indeed, that sweep was so broad and often compartmentalized, and his output so prolific, that even his closest associates only knew of slices of his accomplishments. So he began sorting through his career and produced this autobiographical essay on his accomplishments at ARPA that is being made posthumously available now. more
On Thursday, Stephen J. Lukasik passed away peacefully at the age of 88. He was the legend in a field with no peer. For nearly half a century, he shaped the development of national security and network technology developments at a level and extent that is unlikely ever to be matched. For a great many of us in that arena from the 1960s past the Millennium, he was the demanding visionary leader who set the policies and directions, framed the challenges, approved and funded the projects, and questioned the results. more
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