Help me understand: relation between LinuxCNC and Linux OSs.

Tommy,

Well, I'm actually thinking in terms of "data breaches", and in this way: "If 'they' can break into and steal info from servers of very heavy hitters with way more money for security measures than I have, my machine is probably vulnerable too, and I too probably should be thinking about security more often."

I've got a fairly homogeneous, family, network. Most everyone runs Linux, all Ubuntu, and all-but-a-couple the same version. I don't believe the firewalls are really more at risk than Linux because there is so little to them--so much less to be hacked, but while I may disagree with you in some specifics, I agree with your general sentiment that security concerns are mostly overblown.

I have not heard of a hacked LinuxCNC system, but I sure as heck have known people whose home computers got viruses, but again, none Linux.

Your reports of the Old Stuff you're still running are especially calming, and in effect, I guess I was expecting one of the answers to my questions was going to be, "Find a level of technology that meets your needs and Stop Upgrading." In fact, I actually tried that at one point with an earlier CNC system, only to find out that as my computer hardware components failed, I could not find modern replacements, forcing me out of my comfortable "stand pat" solution. In fact, the experience persuaded me that if I didn't plan on hardware failure, I was gonna end up worse snakebit than if I did, and that was probably the underlying motivation for the post.

I appreciate you adding your own advice to learn how to compile LinuxCNC to Rod's. I look forward to being free. Well, free-er.

Thanks.

Don't fall for the deception that large corporations have the best security.
It is very expensive (in many ways) to do it correctly. And they will stop spending money, time, and loose patience before the system is truly secure. They also often fall very short on employee training.

So... ...back in my other thread , for a time, it looked like I was going to have to build a new LinuxCNC machine and advices were offered about options for going about doing that.

Rod was really high on the idea of compiling from source otoh but suggestions to "just download, burn, and boot the ISO image" were also there.

Having thunk some on it--and daydreaming about what it must be like to be a ninja--I want to ask:
Does compiling from source decouple the LinuxCNC version from dependence on the Linux version?

Thanks,
David

Does compiling from source decouple the LinuxCNC version from dependence on the Linux version?

NO
you need the NEWEST Kernal ad all the new stuff to get the latest
#
so it is even more advanced then the ISO

Thanks for weighing in John with the link to your gnipsel, where incidentally I have spent many a happy hour daydreaming... The options there carry LinuxCNC safely into "modern" times :^) and your comment:

"LinuxCNC depends on libraries; if all the dependences are met and you have a real time kernel things usually work out."

expresses how to keep it going.

And thanks pl7i92--understood, but taken in light of BigJohn's comment above.

[@andypugh--I understand there may be no photos which captured your expression, but the situation reminded me of the old joke about the captain of the British man-of-war who orders the cabin boy to "fetch my scarlet tunic, that the men may not lose heart if I should happen to catch a French musket ball..." upon seeing a French warship in the lifting fog. When the fog lifts enough for him to realize suddenly that his ship is alone in the middle of a French armada, he changes the order: "Oh, cabin boy! Fetch my BROWN trousers..."]