My Best Teaching Is One-on-One

一対一が僕のベスト

Of course, I team teach and do special lessons, etc.

当然、先生方と共同レッスンも、特別レッスンの指導もします。

But my best work in the classroom is after the lesson is over --
going one-on-one,
helping individual students with their assignments.

しかし、僕の一番意味あると思っている仕事は、講義が終わってから、
一対一と
個人的にその課題の勉強を応援することです。

It's kind of like with computer programs, walking the client through hands-on.
The job isn't really done until the customer is using the program.

まあ、コンピュータプログラムにすると、得意先の方に出来上がった製品を体験させるようなことと思います。
役に立たない製品はまだ製品になっていないと同様です。

Thursday, July 9, 2015

reminder -- ssh fingerprints

This is a quick reminder to myself about connecting via ssh to various sites, such as with subversion or other source code repository tools.

When the site lists its fingerprint as something like

SSH2/RSA     2048     86:7b:1b:12:85:35:8a:b7:98:b6:d2:97:5e:96:58:1d

(Note, I am not trying to mirror keys here. If anyone reading this needs the keys for some site, such as the one I linked to above at one point, that person should go to the site itself, and complain loudly if keys can't be found.)

That format is the old, less secure MD5 format.

Go into the ssh configuration file for the user, probably something like

.ssh/config 

and add or uncomment this line:

FingerprintHash="MD5"

But be sure to comment it back out when done, so you use the more secure protocol options instead.

(Should edit this when I'm awake again to add the site specifier line, which partially mitigates the problem of choosing the less secure protocol options. And otherwise say more sensible things.) 

(Also need to complain loudly to said site about not publishing the SHA256 fingerprint keys yet.)

No comments: