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The Unix Magic Poster
I understand the classic UNIX Magic poster by Gary Overacre was distributed at past USENIX conferences, and I’ve known of it for years but now in confinement, I’ve decided I want one to hang in my ...
Jan-Piet Mens
The root DNSSEC trust anchor, the Key Signing Key or KSK as it’s called, was rolled, i.e. renewed, on Sunday 2026-10-11. To be precise the key was created two years ago, but it is now used for signing the root DNSKEY resource record set (RRset). I’m not involved in the process, but I am an avid follower, and as such I…
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It used to be simpler to teach Unix
When I began teaching Unix around anno 1986, the Unix ls(1) utility printed a list of files to stdout, one per line. It was trivial to explain the concept of not requiring a program which tells you...