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2011.12.28

Pretend Invitations

Choosing between people you want to invite to a function and people you have to invite is sometimes difficult. Say Alice wants to invite Tom, Dick, and Harry to a party, but she'd actually prefer if Dick didn't show up. Here's how Alice can send invitations by email from an email-capable Unix system to achieve the desired result, while covering her scheming with plausible deniability.

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Last modified: Wednesday, December 28, 2011 1:29 pm

2011.12.17

Advice from Successful Greek IT Startups

Members of the Hellenic Association of Mobile Application Companies and the Hellenic Semiconductor Industry Association, assorted biotechnology companies, and representatives from Greek and US-based venture capital funds gathered on Friday December 17, 2011 in a meeting to exchange advice, tips, and war stories on venturing abroad. It was one of the most inspiring meetings I've attended for some time. These are my notes from the meeting.

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Last modified: Saturday, December 17, 2011 2:31 pm

2011.12.14

Apps are the New Users

Some facilities provided by mature multi-user operating systems appear arcane today. Administrators of computers running Mac OS X or Linux can see users logged-in from remote terminals, they can specify limits on the disk space one can use, and they can run accounting statistics to see how much CPU time or disk I/O a user has consumed over a month. These operating systems also offer facilities to group users together, to specify various protection levels for each user's files, and to prescribe which commands a user can run.

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Last modified: Wednesday, December 14, 2011 6:24 pm

Creative Commons License Last update: Thursday, September 22, 2016 9:56 am
Unless otherwise expressly stated, all original material on this page created by Diomidis Spinellis is licensed under a Creative Commons Attribution-Share Alike 3.0 Greece License.