I bought an install disc for Snow Leopard (OS X 10.6) back when that was the current version.

Seems they have it in the offical online store still actually: https://www.apple.com/shop/product/MC573Z/A/mac-os-x-106-sno...

However when I inquired at an authorized store about a later version after it came out they said that it was not available on disc and you had to buy it via the Mac App Store which means you need to have OS X in the first place but I'm not sure if they were talking about their own store or in general.

I'm on mobile right now so not going to bother finding out what other versions can be bought on disc media from the official online store but if someone else would like to chime in with more links that'd be welcome.

I come across these once a year or so on the net but when I need them I never can remember them because it's not so often that I need them

Fortunately you only need to remember ~? since it tells you the rest.

Unfortunately, ~? is two characters too many for me to remember a year later :|

Do you never have to terminate a stuck session? <enter>~. to do so is practically muscle memory. The other sequences I cannot remember either, since their frequency of use is several orders less for me, but ~? is pretty intuitive to find out.

Not the OP but I generally don't need to use <enter>~. because I have my terminal multiplexed in tmux so will kill the tmux pane rather than OpenSSH session.

The main reason I prefer to kill via tmux rather than OpenSSH is because sometimes I'll be connected several sessions deep (eg via a Bastian / SSH jumpbox or tmux itself might be running remotely) so the tmux kill is easier than having to remember whether I need to ~. or ~~.

But ultimate there is no right nor wrong way to do things here, it's all just a question of preference and habit.

Typically I just wait for timeout, or open a new session (remote tmux session makes this quite painless). Plenty of other things to do, usually, waiting a couple minutes every week or three doesn't bug me enough to google.

Since I didn't know about <Enter>~. until a few days ago, I usually `killall ssh` or the specific PID.

If you need them but don’t remember them just use man ssh in another terminal.

Direct link to video at 19:39 https://www.youtube.com/watch?v=EhtxDXlrJ6Y&t=19m39s

Seems that only four of the tips are available?

They're doing one a week, starting 4 weeks ago.

On average it seems, because it took a months wait for three to be released at once.

Hopefully whatever stopped the project has been resolved and they’ll be consistent now.

The index is related to when the tips were published internally at Google, and are not re-indexed for the sake of those who have already seen them

If you look at the paragraph above them, last in the article they explain why it is.

This is specifically addressed in the article at the bottom as a note.

Another copy: http://archive.is/K6O8U

Maybe but the OP link has links to both of those and summarizes quite neatly what this is IMO.

Out of the box it'll probably tell you "Client is not authorized to connect to server" if you try to run anything X11 as another user.

However it should be possible to configure your system such that it doesn't like such: https://wiki.archlinux.org/index.php/xorg#X_clients_started_...

I currently run my kids browsers under my user by doing "xhost +local:; su -l -c /usr/bin/firefox $USERNAME" where USERNAME is the kids login. I may have made changes to enable that, don't recall sorry.

An extra layer of protection may be offered by using the likes of xpra.

https://xpra.org/

Readme has instructions for building on Linux so it's not limited to OS X.

I saw a couple of dead comments from him here on HN earlier today or yesterday evening actually. First time in a long while I'd come across his comment so that was kind of random.

Edit: The comments were posted 6 hours ago, check his user page https://news.ycombinator.com/threads?id=TempleOS

mods, thanks for not permabanning him. it’s nice to read his posts and see he’s doing okay