I think that it is poor practice to run ntpdate at boot; instead make sure that the underlying RTC is being set to match the ntp-managed OS clock (with appropriate options on xntpd if necessary) and then there is no reason for the system clock to be far from reality at boot. If there is a big discrepancy, a human should investigate/fix.
Generally xntpd and its ilk will not step the time more than a small amount, but will rather give up and quit instead. One machine such as (say) the RPi with no RTC that use ntpdate to *set* rather than *adjust* the clock, this is harder to avoid, but servers should not be automatically running ntpdate when configured properly.
So there may be *two* bugs here to get the problem: one in an NTP implementation and one in use of ntpdate for anything other than manual updates on servers. But I haven't read TFA yet.
(On the little bit of work I put into the ARCRON driver I inserted extra code to look out for year rolls, etc, on top of whatever xntpd would do. In part because ARCRON only sends 2-year dates IIRC.)
In those days I had several/24s (and I only would have only needed at most one to get back mail briefly) but we may even have done just a/32 for the mail server: it was enough since the old and new ISPs were quite close topographically. But I don't remember exactly, and I don't need to wake sleeping lawyers.
This sort of 'feature' did allow me once to escape from a misbehaving ISP holding me hostage and preventing me getting my mail to, for example, change my DNS glue records many many years ago. A helpful friendly new ISP managed to reroute traffic to me via them with a "bogus" routing announcement long enough for me to fix those records and then escape the old ISP when the new records propagated.
Disagree: "literally" means no metaphors/non-literality at all, and that text was riddled with non-literal wording and meaning, including that use of "drove" in the absence of cars or cattle or drive shafts. Let's keep "literally" and "infinitely" and even "exponentially" for when we mean and need them, not as a poorly-thought-out cheap replacement for "very" and its ilk.
If not having face time, why travel at all? I already only travel in to my main client a couple of days per week, and only then for the benefits of working cheek-by-jowl with my co-workers since my human firmware needs that sometimes. And my transport is already self-directed and all-electrified and fairly decent (train, underground, elevated light rail ending close to Canary Wharf). Wasting time and energy on travel for the sake of it is silly.
Yes, it'll be the thing we don't expect and cannot predict that is interesting...
I'll not start ranting about ID cards, save to point out I happen to be wearing the t-shirt from the only political campaign I've participated in: No2ID (against a previous UK government's heavy-handed attempt to introduce universal ID here),
Hydro storage is pumped with whatever fuel is powering the grid at that moment, for which the ratio was only about 2:1 nuke:wind in the UK last night as it happens:
We are slightly carbon-negative at home for energy and still dropping. I'm also reducing the footprint of my diet. I'm also putting solar PV up with my money as fast as I can (and I have probably eliminated my family's footprint entirely for the next 20 years) and I'm helping others do so too (eg working on community PV for my town) and indeed persuaded the Department of Energy and Climate Change to make the process a little easier for schools having had the Energy Secretary on the roof of ours to explain some of the issues. I'm also in the throes of getting 100 lofts of houses near to me properly insulated before winter. And I'm seeing if it is possible to organise switching thousands of people in my town to a greener energy supplier so that less of their bill will go to shareholders and more to building new green generation such as solar and wind. Amongst other things.
It's is good to be reminded that individuals like you, with nuance, exist.
I think of myself as towards the right of the political spectrum at home in sunny London (UK), and have spent 25+ years in banking and doing start-ups, etc, but I'm still probably to the left of you. B^>
Actually, the problem is not so much the left/right spectrum for as much or as little as its worth, but more like (a) lazy/sloppy thinking, (b) assumptions that the world is tidily binary ("with us or against us" was an unfortunate example) and (c) plain old bigotry/xenophobia/etc (if you're not very like me you must be wrong).
And there as many people on the left (FWIW) with sloppy thinking and who reject out of hand solutions that they don't like some small part of and are innumerate... I just deleted a posting of mine on another 'green' forum ranting about a particularly odious bit of straw-mannery. Argh! A little understanding of the holes in the Law of the Excluded Middle would help a lot, as would a dose of the pragmatism it suggests.
"... and not even the most progressive American or European voter would be willing to make the kinds of sacrifices necessary to make meaningful reductions in carbon emissions."
Complete nonsense: speaking for myself and many others I know we've more than halved our carbon footprint (for example we're carbon negative at home for primary energy now, in suburban London) with relatively little effort, and we're probably just about sustainable even if our consumption was adopted by every one of the ~9x10^9 humans that the UN thinks that global population will peak at. And I don't know if I count as "progressive" with whatever meanings you attach to that, good or bad.
No, we don't own a mansion, SUV or plasma TV(s), nor do we take multiple holidays by jet each year or leave all our lights and appliances on BecauseWeCan(TM), but we are living comfortably and happily as a family of four. We do own our house, etc, BTW.
Are you prepared to alter your sweeping statement given my counter-example(s)?
1) The foil vapour-control-layer just behind the plasterboard on my aerogel internal wall insulation seems to be starting to to that job quite well already.
2) I don't have an FB a/c so I really must be a terrrrrist, yes?
Are you trolling? What is 'inefficient' about a generator whose fuel is free, compared to (say) sub-50% thermal efficiency from burning coal (and dumping various toxic and radioactive nasties on your neighbours)?
"You must figure it out by the end of the document, why not at the beginning?"
Because in many reasonable cases you don't know the final outcome when you've produced the first byte of the response, for example streamed on-the-fly-generated pages possibly with on-the-fly gzip encoding. The user gets to see useful output sooner, and the server can more easily cap peak resources, by streaming/pipelining and lazy eval. Like SAX rather than DOM.
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I think that it is poor practice to run ntpdate at boot; instead make sure that the underlying RTC is being set to match the ntp-managed OS clock (with appropriate options on xntpd if necessary) and then there is no reason for the system clock to be far from reality at boot. If there is a big discrepancy, a human should investigate/fix.
Rgds
Damon
Generally xntpd and its ilk will not step the time more than a small amount, but will rather give up and quit instead. One machine such as (say) the RPi with no RTC that use ntpdate to *set* rather than *adjust* the clock, this is harder to avoid, but servers should not be automatically running ntpdate when configured properly.
So there may be *two* bugs here to get the problem: one in an NTP implementation and one in use of ntpdate for anything other than manual updates on servers. But I haven't read TFA yet.
(On the little bit of work I put into the ARCRON driver I inserted extra code to look out for year rolls, etc, on top of whatever xntpd would do. In part because ARCRON only sends 2-year dates IIRC.)
Rgds
Damon
In those days I had several /24s (and I only would have only needed at most one to get back mail briefly) but we may even have done just a /32 for the mail server: it was enough since the old and new ISPs were quite close topographically. But I don't remember exactly, and I don't need to wake sleeping lawyers.
Rgds
Damon
This sort of 'feature' did allow me once to escape from a misbehaving ISP holding me hostage and preventing me getting my mail to, for example, change my DNS glue records many many years ago. A helpful friendly new ISP managed to reroute traffic to me via them with a "bogus" routing announcement long enough for me to fix those records and then escape the old ISP when the new records propagated.
Rgds
Damon
Don't go getting all pragmatic on me!
I definitely want to keep a small arsenal of absolutes (though I misuse "absolutely!" myself) and superlatives to indicate the extremes on a scale.
Just because others carelessly and capriciously misuse such terms doesn't mean that you and I should accept them as reasonable.
Any more than when one someone misuses other art terms, eg legal terms.
Rgds
Damon
Disagree: "literally" means no metaphors/non-literality at all, and that text was riddled with non-literal wording and meaning, including that use of "drove" in the absence of cars or cattle or drive shafts. Let's keep "literally" and "infinitely" and even "exponentially" for when we mean and need them, not as a poorly-thought-out cheap replacement for "very" and its ilk.
Rgds
Damon
I think that I have been given excess money comparably often to being short-changed in retail, at a till or bar for example.
And even commercially, goofs have often been in my favour.
I do point out the errors in either direction generally, and thus keep my karma balanced!
Yes, malice is around, but is usually fairly clearly separable from accident/cock-up IMHO.
Rgds
Damon
"imply" not "infer".
Rgds
Damon
Spot on.
If not having face time, why travel at all? I already only travel in to my main client a couple of days per week, and only then for the benefits of working cheek-by-jowl with my co-workers since my human firmware needs that sometimes. And my transport is already self-directed and all-electrified and fairly decent (train, underground, elevated light rail ending close to Canary Wharf). Wasting time and energy on travel for the sake of it is silly.
Yes, it'll be the thing we don't expect and cannot predict that is interesting...
I'll not start ranting about ID cards, save to point out I happen to be wearing the t-shirt from the only political campaign I've participated in: No2ID (against a previous UK government's heavy-handed attempt to introduce universal ID here),
Rgds
Damon
Probability should be taught early on at school, not waiting for university!
Rgds
Damon
Did I miss that post?
Rgds
Damon
Indeed: for my public IPv6 hosting I have done exactly that. Plus ça change...
Rgds
Damon
Germany (and others) for example already *has* a lot of *installed* solar PV.
But yes, research is going on in the EU too.
Rgds
Damon
My expectation of VC success rate is ~20%, having several times been in receipt of VC money (and arguably succeeded once!)...
Rgds
Damon
Hydro storage is pumped with whatever fuel is powering the grid at that moment, for which the ratio was only about 2:1 nuke:wind in the UK last night as it happens:
http://www.earth.org.uk/_gridCarbonIntensityGB.html
http://www.bmreports.com/bsp/bsp_home.htm
Rgds
Damon
So you won't make any effort at all until then? Such as turning off lights and appliances when you're not using them?
And what do you mean by "until we have"? They exist now.
And what about finessing things as we have to avoid the need for a car in the first place?
Rgds
Damon
We are slightly carbon-negative at home for energy and still dropping. I'm also reducing the footprint of my diet. I'm also putting solar PV up with my money as fast as I can (and I have probably eliminated my family's footprint entirely for the next 20 years) and I'm helping others do so too (eg working on community PV for my town) and indeed persuaded the Department of Energy and Climate Change to make the process a little easier for schools having had the Energy Secretary on the roof of ours to explain some of the issues. I'm also in the throes of getting 100 lofts of houses near to me properly insulated before winter. And I'm seeing if it is possible to organise switching thousands of people in my town to a greener energy supplier so that less of their bill will go to shareholders and more to building new green generation such as solar and wind. Amongst other things.
So, I'm not sitting on my hands.
Your turn?
Rgds
Damon
It's is good to be reminded that individuals like you, with nuance, exist.
I think of myself as towards the right of the political spectrum at home in sunny London (UK), and have spent 25+ years in banking and doing start-ups, etc, but I'm still probably to the left of you. B^>
Actually, the problem is not so much the left/right spectrum for as much or as little as its worth, but more like (a) lazy/sloppy thinking, (b) assumptions that the world is tidily binary ("with us or against us" was an unfortunate example) and (c) plain old bigotry/xenophobia/etc (if you're not very like me you must be wrong).
And there as many people on the left (FWIW) with sloppy thinking and who reject out of hand solutions that they don't like some small part of and are innumerate... I just deleted a posting of mine on another 'green' forum ranting about a particularly odious bit of straw-mannery. Argh! A little understanding of the holes in the Law of the Excluded Middle would help a lot, as would a dose of the pragmatism it suggests.
Rgds
Damon
"... and not even the most progressive American or European voter would be willing to make the kinds of sacrifices necessary to make meaningful reductions in carbon emissions."
Complete nonsense: speaking for myself and many others I know we've more than halved our carbon footprint (for example we're carbon negative at home for primary energy now, in suburban London) with relatively little effort, and we're probably just about sustainable even if our consumption was adopted by every one of the ~9x10^9 humans that the UN thinks that global population will peak at. And I don't know if I count as "progressive" with whatever meanings you attach to that, good or bad.
No, we don't own a mansion, SUV or plasma TV(s), nor do we take multiple holidays by jet each year or leave all our lights and appliances on BecauseWeCan(TM), but we are living comfortably and happily as a family of four. We do own our house, etc, BTW.
Are you prepared to alter your sweeping statement given my counter-example(s)?
Rgds
Damon
1) The foil vapour-control-layer just behind the plasterboard on my aerogel internal wall insulation seems to be starting to to that job quite well already.
2) I don't have an FB a/c so I really must be a terrrrrist, yes?
Rgds
Damon
Simply isn't how it works in most grids: it's not the wind's fault if it's managed badly.
So "notoriously inefficient and unreliable" is simply inflammatory and incorrect.
No generator is completely free nor perfectly reliable: nukes trip out without warning causing blackouts for example, as do coal and gas plants.
Rgds
Damon
Are you trolling? What is 'inefficient' about a generator whose fuel is free, compared to (say) sub-50% thermal efficiency from burning coal (and dumping various toxic and radioactive nasties on your neighbours)?
Rgds
Damon
CDNs will still exist to be (a) high-bandwidth and (b) low-latency close-to-the-user commodity servers of large data volumes.
A change of protocol won't eliminate the limitation of light speed and long-distance comms networks.
Rgds
Damon
"You must figure it out by the end of the document, why not at the beginning?"
Because in many reasonable cases you don't know the final outcome when you've produced the first byte of the response, for example streamed on-the-fly-generated pages possibly with on-the-fly gzip encoding. The user gets to see useful output sooner, and the server can more easily cap peak resources, by streaming/pipelining and lazy eval. Like SAX rather than DOM.
Rgds
Damoner
Astonishingly, lots of people without grid connections manage situations like this without their heads exploding.
Even the servants understand the necessity to live within means, if you are patient enough.
Rgds
Damon