A natural question from using SSH for a while is whether we
can reuse the SSH authentication key for other use, say, encrypting a file. The
answer is affirmative in OpenSSL but it is not straightforward.
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"Advanced" OpenSSH
I’ve written something about SSH and here are more, on authentication, tunnelling and some other.
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Thinking cycle of growth
I was reading a book on PDCA the day before and come across a Japanese web page
on thinking cycle of growth.
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鬼速PDCA工作術
富田和成 / 2017
第一章
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Random Walks in Lattice Grid
A problem introduced to me by Professor Peter Yum. Consider random walk on
integers. The simplest one is on
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