What I learnt today

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SirHumphreyAppleby

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#258643 14-Oct-2019 16:34

For a while I've thought Geekzone needed a thread dedicated to telling members about new (or old) things other members have learnt. Please feel free to respond with any interesting discoveries you make in your life.

Today I learnt something interesting and yet blindingly obvious. I felt the need to share my ignorance with the community and start page one of what will inevitably be a one page thread.

While researching how Google's daily quotas work, I came across references to users backing up Linux ISOs. I've seen this many times before, and while I thought was a little odd that people would want backups of these (historians aside), I just accepted it on face value. Today I had a sudden realisation - they're not talking about Linux ISOs at all. A friend confirmed it was a actually a euphemism for warez, porn or general pirated content. Wow!

Oddly, I call all my downloads "porn", of which 0 bytes is actual porn. My family and friends probably think I have a problem. It's just Linux ISOs for me from now on.

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#2336874 14-Oct-2019 16:44

The term arose as they were historically a large size file with no copyright attached, hence no restrictions on copying them to and from file lockers, torrent sites etc..

linw

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#2336881 14-Oct-2019 16:55

Understood. Knights of the realm are above that sordid stuff😀

Lostja

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#2336883 14-Oct-2019 16:57

I see, learnt something today

Lias

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#2336905 14-Oct-2019 18:05

TIL that SQL is dumber than I realised and I don't think we can be friends any more.

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xpd

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#2336911 14-Oct-2019 18:09

Lias:

TIL that SQL is dumber than I realised and I don't think we can be friends any more.

GIGO

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timmmay

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#2336912 14-Oct-2019 18:12

You know, I actually have about a dozen Ubuntu ISO images from v11 to v18 stored on my computer and backed up, along with some virtual machines based on those ISOs. So sometimes a Linux ISO is a Linux ISO.

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Lias

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#2337010 14-Oct-2019 19:52

xpd:

Lias:

TIL that SQL is dumber than I realised and I don't think we can be friends any more.

GIGO

So for more detail, today I learnt I can't do flow control without using stored procedures and it's not okay.. not being able to just do "If exist table x alter table x else create table x" is ..annoying...

timmmay:

You know, I actually have about a dozen Ubuntu ISO images from v11 to v18 stored on my computer and backed up, along with some virtual machines based on those ISOs. So sometimes a Linux ISO is a Linux ISO.

I just checked, I currently have 5 linux iso's shared.. out of 2533 linux iso's shared :-P

davidcole

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#2337025 14-Oct-2019 20:26

Today I learn't that an Ubuntu VM running on a Hyper-V host, can't run a docker container in tagged vlan. Containers in the same vlan can talk to each other but nothing else can talk them.

It's the hyper-v that's causing issues.

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SirHumphreyAppleby

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#2337138 15-Oct-2019 08:04

timmmay:

You know, I actually have about a dozen Ubuntu ISO images from v11 to v18 stored on my computer and backed up, along with some virtual machines based on those ISOs. So sometimes a Linux ISO is a Linux ISO.

I've got a few ISOs floating around, some even in backups, but none are Linux ISOs. Windows and FreeBSD releases mainly. I should probably delete the old ones, I don't really have a need for Windows 7/8/8.1 anymore. The older Windows 10 builds have already been deleted.

BlueShift

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#2337153 15-Oct-2019 08:55

wellygary:

The term arose as they were historically a large size file with no copyright attached, hence no restrictions on copying them to and from file lockers, torrent sites etc..

Also because there was a lot of talk about "Ban Bittorrent, its only used for pirating and porn, won't someone think of the children" so distributing Linux ISOs was a commonly used example of a perfectly legal and logical use for torrenting.

Hence "I only have Bittorrent running to download these Linux ISOs" was the new "I only read Playboy for the articles".

jpoc

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#2340437 19-Oct-2019 03:02

Many years ago, a pilot I know posted on an aviation forum:

Today, my first officer learned not to pick his nose while flying in turbulence.

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SirHumphreyAppleby

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#2340621 19-Oct-2019 15:19

jpoc:

Many years ago, a pilot I know posted on an aviation forum:

Today, my first officer learned not to pick his nose while flying in turbulence.

I watched a video a few weeks ago with someone flying a small private plane across the US. While I knew commercial jets were largely controlled by knobs and switches, I just assumed small aircraft had remaind very hands-on. My logic was that even if a $5 microcontroller can keep something inherently unstable in the air, the certification costs alone would keep the technology out of small aircraft. Apparently not. Private plane owners literally can have one (or no) hand on the stick and one on... something else.

frankv

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#2340801 19-Oct-2019 19:28

SirHumphreyAppleby:

I watched a video a few weeks ago with someone flying a small private plane across the US. While I knew commercial jets were largely controlled by knobs and switches, I just assumed small aircraft had remaind very hands-on. My logic was that even if a $5 microcontroller can keep something inherently unstable in the air, the certification costs alone would keep the technology out of small aircraft. Apparently not. Private plane owners literally can have one (or no) hand on the stick and one on... something else.

Small aircraft *are* pretty much hands-on. You can add auto-pilot for several thousands of dollars, but most people in light aircraft do it because they enjoy flying a lot more than they do setting auto-pilots.

The $5 micro is only a tiny part of the solution, of course. You also need gyros or some other way to figure out which way is up, and which direction to fly. And then you need actuators of some kind to make the corrections. And, as you say, a mountain of paperwork to prove that everything works, and doesn't break some other system.

kiwifidget

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#2340843 19-Oct-2019 22:40

SirHumphreyAppleby:

I watched a video a few weeks ago with someone flying a small private plane across the US. While I knew commercial jets were largely controlled by knobs and switches, I just assumed small aircraft had remaind very hands-on. My logic was that even if a $5 microcontroller can keep something inherently unstable in the air, the certification costs alone would keep the technology out of small aircraft. Apparently not. Private plane owners literally can have one (or no) hand on the stick and one on... something else.

...the joy-stick?

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tukapa1

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#2340913 20-Oct-2019 02:05

That Ireland haven't figured the All Blacks out...

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