* Posts by John Sager

363 posts • joined 28 Apr 2008

Page:

Openreach hints at fibre network strategy rethink

John Sager

Re: FTTP?

I wonder if this is why, when I last enquired, we're going to get FTTP on our DP (in a year...)? I was very surprised at this. A FTTC cabinet went live in our village recently, and although it is <100m from me, my DP and another one close by are EO lines. The other DP is supposed to be re-parented on the cabinet very soon but, although it would be easier & cheaper to put both on the cabinet at the same time, mine is to be FTTP. I shan't complain though (except for the extra wait), if that's what actually happens.

0
0

OK... Red wire or black... *Clickety* You've emailed the schematic? Yes, got it! It's opening. And... WHAT? NO!

John Sager

Re: Why is that not adequate

A lot of the issues are to to with totally shit wifi routers that can't do QoS for toffee. However, it's not exactly easy. I had this problem with my own home-brew router - a satnav update I started totally clobbered my daughter's Netflix session. I spent a *lot* of time analysing that & coming up with a working solution using combinations of iptables rules to mark traffic and qdiscs to filter & queue traffic appropriately. I think recent versions of OpenWrt have something similar, and eventually the Cake qdisc should make this a no-brainer.

0
0

I need an ISP that offers IPv6. Virgin Media: Whatevs, nerd

John Sager

Re: If in the UK, I recommend

Likewise. I changed to A&A when the previous v6 support I had from Enternet broke and they never bothered to fix it. It was apparently something cobbled together for customers on BT's 20C network.

0
0

Do you use .home and .mail on your network? ICANN mulls .corp, .mail, .home dot-word domains

John Sager

Silly to use generic tlds on a home network

I picked one that's not generic and not in ISO3166 so that it wouldn't cause me or anyone else any problems in the future. I also got the local root name in the company NNTP server changed many years ago to avoid ISO3166 before it would have become a problem. Far better to foresee these problems before they bite you...

0
0

Public IPv4 drought: Verizon Wireless to stop handing out static addys

John Sager

Re: but it's suffice to say IPv6 is so big,

My ISP gave me a /48 by default, which is equivalent to a /16 in v4-world. Not that I use more than a /63. I could, in principle, change my home network to v6 only, at least for the laptops, android, a couple of servers, as my ISP runs a 4-to-6 service to map v4s in the Internet to temporary v6 addresses. No such luck for the blu-ray player and DVRs though. I guess it'll be a long while before new models of them become dual stack.

0
0

It's time for our annual checkup on the circus that is the Internet Governance Forum

John Sager

Isn't this SOP in the UN generally? They would be constitutionally incapable of doing anything useful anyway because of the completely diverse & irreconcilable views in the world of what the Internet is for and how it should be controlled.

0
0

Passport and binary tree code, please: CompSci quizzes at US border just business as usual

John Sager

They did something similar to me in the 90s

I was working on digital TV standards at the time, told the Immigration guy I was going to a meeting on the subject. He then asked "what screen aspect ratio do you think will win out in the long run" or words to that effect. So I went "Oh, definitely 16 by 9". He then said he was interested in the subject as he had just been to CES. May have been true I suppose. The guys at the meeting were a bit boggled when I related this tale.

3
0

Blighty floods with techies' tears as Capita boss Parker quits

John Sager
FAIL

Does anyone have a good word to say about them?

My crap Crapita story is the TVL one, and frightening my elderly MiL with the usual nastygrams, even though she had a licence, and free to boot because of her age. Turns out they had no way of dealing with alias addresses, where the account address in their database is not quite the same as the Postcode Address File one. Got her MP involved but no satisfactory resolution:(

0
0

One IP address, multiple SSL sites? Beating the great IPv4 squeeze

John Sager

Yup. I'm just a home user & my ISP just handed me a /48 no problem - the equivalent of a Class B in old money. Not that I need that much (yet...).

2
1

Germany, France lobby hard for terror-busting encryption backdoors – Europe seems to agree

John Sager

Re: Getting bored of pointing this out

So why do we see so much 'the State must' talk from the Left? 'Minimise the State' seems to be perceived as more of a Right position.

5
6

$350m! shaved! off! sale! price! as! Verizon! swallows! Yahoo!

John Sager

Can we finally get rid of the bangs. Please

That joke wore out for me about a decade ago.

3
11

The Register's guide to protecting your data when visiting the US

John Sager

Re: Timely advice

I am going to see the eclipse

Likewise. I've been to the US numerous times over the last 30 years on both business & vacation. I've never had any problem with Immigration or Customs & hopefully I've built up a record of probity with them. One assumes they look at previous history of visits.

5
5

ITU-T wants video sizes to halve again by 2020

John Sager

Run the Battle of Helms Deep locally

That was a lot of AI avatars interacting in Weta Digital's CPU farm. I guess it'll take a few more iterations of Moore's Law before we see that capacity in our smart TVs.

0
0

Who do you want to be Who? VOTE for the BBC's next Time Lord

John Sager

Re: Alternative choice

Not Doctorish enough. I thought about Mel & Sue - the idea of the regeneration going wrong & producing a fission would be interesting. But there are better pairs - thinks:

Chuckle Brothers? - no!

Jedward? - kill me for that thought.

Rowan Atkinson & Tony Robinson? - worth a second thought.

3
0

BT installs phone 'spam filter', says it'll strain out mass cold-callers

John Sager

Re: BT need to sort out CLI

You do realise that some people do genuinely have 5 digit phone numbers?

How many area code areas still have 5-digit numbering schemes? Northern Ireland used to be a bit strange but have they now not regularised that? In any case, all the calls like that I had up until recently were scammers (PPI mostly). I did let them go to the machine but the bastards just play their recording into the machine, unlike most other scammers who just ring off when they get the machine. Now I have to answer the call & then ring off:(

If BT can stop these then all power to their elbow but I still WANT THEM TO SORT OUT CLI!

1
0
John Sager

BT need to sort out CLI

I get a bit fed up of BT's approach to calling line identification. Lots of scam calls come through with obviously weird CLI (e.g ok area code but 5-digit phone no), and a few judiciously crafted regular expressions should filter most of them. What's worse is that BT don't seem to be able to forward incoming international CLI with any consistency. A US friend has a mobile on Sprint, I think, but when she came over here her calls were marked 'Unavailable' so they went straight to our answering machine:( Her calls to our mobiles (Vodafone) had correct CLI.

5
0

How the NYE leap second clocked Cloudflare – and how a single character fixed it

John Sager

Re: Use NTP

Google do this- it's called a Leap Smear

I set my internal NTP servers to sync from Google. Google drifted their time linearly from 10 hours before to 10 hours after the leap. My servers responded with a rapid 50ms offset initially which then decayed, and then a -50ms offset at the end. The drift changed by 14ppm. Personally, I would have preferred them to do a raised cosine profile over -/+ 12 hours. That would reduce the initial offset errors considerably for a peak drift change of ~18ppm.

0
0

Networks in 2016: A full fibre diet for UK.gov

John Sager

Multiple 4k

Exactly. There seems to be a dastardly plan to stop broadcast TV at some unspecified future point & put it all on 'broadband'. At least that's what a woefully under-advised House of Lords committee suggested a year or two back. If that ever happens, then 'broadband' will need to carry multiple decent quality TV channels for those houses that have multiple viewers with different tastes. So there's your FTTP use case right there (and a properly engineered multicast network). Of course, the HoL were totally out of their tree but I can imagine the lure of filthy lucre from mobile companies for the UHF spectrum might precipitate the same end result.

4
1

What can we use to hit Intel between the eyes, thinks Qualcomm – a 10nm ARM server chip

John Sager

Re: People don't buy x86 because of Performance or anything

all Java, python, perl, ruby, C/C++ just needs recompiling usually

And there's the rub. Intel have spent a lot of effort on developing a compiler that will produce really good x86 code - it's better than GCC & CLANG/LLVM for a lot of things. An ARM server ecosystem really needs an equivalent highly optimising compiler.

2
2

Exclusive: Team Trump's net neutrality guru talks to El Reg

John Sager
Unhappy

RFC791

As the article says, that's what the Internet should be. RFC791 is a bit outmoded now and has been replaced by Differentiated Services - RFC2474. It makes sense to classify traffic according to its characteristics and separate/prioritise on that basis. However the Net Neutrality debate has been hi-jacked by commercial entities & anti-commercial activists for their own political purposes. Unfortunately, what we'll probably end up with is a network with totally skewed parameters that don't suit anybody.

0
0

Google turns on free public NTP servers that SMEAR TIME

John Sager

Well, I'm giving it a punt

I read about Google's approach some time ago, and for non-sub-second-critical apps it's a better solution than stepping by 1 sec. If you do need the sub-second stuff then TAI is the way to go. Of course, even things like HFT need to ultimately tie to real-world time but it's much more important to have a unique time ordering of transactions (no, relativity doesn't (yet) apply!) and the reference back to real-world time can be done after the fact from logs, e.g. when litigation requires it.

I've configured my home network now to have two internal NTP servers referenced to the Google ones & then everything else talks to them. I'll see what happens at New Year, probably set up a client with logging on & talking to NPL or Linx.

0
0

Jeremy Hunt: Telcos must block teens from sexting each other

John Sager

Re: This country

The Lib-dems seem to speak sense but nobody votes for them.

The Venn diagram of 'Sense' and 'Lib-dems' has an exceedingly small intersection. They may be OK on civil liberties but on economics & Europe they really haven't a clue, which is why nobody votes for them.

5
11

Lib Dems to oppose porn checks in Blighty's Digital Economy Bill

John Sager
Facepalm

I'm totally, one hundred percent sure that will persuade Amber Rudd to have a radical re-think.

4
1

More than half of punters reckon they can't get superfast broadband

John Sager

Re: exchange only lines...

Same in the country. I'm on a EO line which is about 3km in line length according to Openreach's TDR. There is a cabinet 200m away from me which has finally had a fibre cabinet installed next to it, but it's awaiting activation. I am assured that they will eventually transfer my DP to that cabinet, but it looks like it'll be many months before that happens.

0
0

We're going to have to start making changes or the adults will do it for us

John Sager

Re: Ok, so...

My .indent.pro file says '-linux -i2'. 8-space indents are too wide for anything that has much in the way of block nesting. Now you could argue that deep block nesting is bad coding practice, and I tend to agree, but I still read (and sometimes hack on) existing code that had weird or no coding standards applied. As for spaces, my editor of choice (nedit) puts tabs in automatically after it gets to 8-space indent. I don't care. indent will prettify it and the compiler doesn't care.

0
0

UK prison reform report wants hard-coded no-fly zones in drones to keep them out of jail

John Sager

No-name drones from China?

I don't think HMG has that kind of clout in the PRC. Having said that, I remember, oh, 20 years or so ago, the US Treasury suggesting that printer manufacturers should install anti-counterfeiting software. It seemed to me at the time a stupid thing to ask - greenbacks should have had better anti-forgery features anyway. Now we find that quite a few printers will barf on printing a banknote, and not just of the USD variety.

2
0

Accountant falls for sexy Nigerian email scammer, gives her £150k he cheated out of pal

John Sager

slap the silly old goat, at 79 he should have MORE than enough life experience to spot scams such as this

Um, he's 79. What's the chance he's got early stage dementia and the judgement bits in his brain are shot? The fact that he insists the 'woman' was kosher suggests his faculties are somewhat lacking.

19
0

Simpsons creator Matt Groening once drew Mac heaven for Apple

John Sager

Early Groening

I first saw a Matt Groening cartoon in the early 80s, well before 'The Simpsons'. The next door office had 'The Nine Types of Bosses' from the 'Work is Hell' series on the wall.

As for tat, I used to go to DAVIC workshops in the mid 90's. The process was putting together standards for digital media distribution - streaming & broadcast. One of them was held at the Beverly Hilton in LA to try to get Hollywood interested in what we were doing, and it was the one & only time we all got a goody bag of tat. One was a T-shirt from Apple with 'Windows 95 is Macintosh 89' on the front. I wore that for years. Another was a frisbee from Novell with 'The Billion Node Network' on it. Laughable in hindsight but I seem to remember it was a bit of a joke even then.

2
0

Forgive me, father, for I have used an ad-blocker on news websites...

John Sager

Re: I do not feel guilty

Me neither. I used to use ABP but now that's switched off & I've got uBlock & Ghostery. Ghostery has one or two holes in to make my online banking work but otherwise it's mostly blocked. I get blocks on a few sites I follow links to, but they can go forth & multiply. Forbes, interestingly, puts up a blank page for 10 sec & then brings up the article from the link I clicked.

4
0

British unis mull offshore EU campuses in post-Brexit vote panic

John Sager

Lack of imagination

I went to uni (UMIST) before we ever joined the EU, and there were students and staff from all over - there were one or two Czechs too after Prague Spring - we were welcoming then and will be again, despite the 'hate immigrants' crap. Has the EU made it so difficult for academia to be as independent and world-looking as it was in those days? Deliberately? The comment from steamnut seems to suggest that the EU is like a giant flypaper (or perhaps a spider's web) so academics get enmeshed in a sticky gunk of admin that has sucked all the initiative away.

4
3

I want to remotely disable Londoners' cars, says Met's top cop

John Sager

Helicopter & Electromagnet

Pity I wasn't on the police committee. I would have suggested in response a sodding great helicopter with a similarly OTT electromagnet to swoop down & lift the miscreants bodily off the road. No more stupid than his suggestion.

14
0

Vodafone UK blocks bulk nuisance calls. Hurrah!

John Sager

Re: Nuisance calls are a plague

TPS is pretty much useless now. Most of the spam calls I get on the landline are either international, even with a proper CLI, or VOIP with a made-up CLI. Interestingly, many of those have a kosher UK code but only a 5-digit number. So easy to spot since virtually all UK local numbers are 6-digit (or 7 for a few) after the code. Some are withheld, and I would just send them straight to the answering machine, but unfortunately we get calls from the local hospital that really need to be answered and they withhold by policy rather than giving a presentation number. I have discussed it with them but no change yet.

1
0

Google: There are three certainties in life – death, taxes and IPv6

John Sager

Re: Bridging the gap

It exists in theory, called NAT46.

Actually it really wants to be the other way round. I run dual stack on my home network but ideally I would go just v6. That then needs a NAT box, plus a DNS interceptor to respond to AAAA requests for v4 hosts with local v6 AAAA responses. The NAT box then does the clever 6-to-4 and back again packet conversion and onward DNS resolution. This won't work for protocols that include IP addresses in higher layer transactions, but even that might be hacked by application layer helpers that v4 NAT boxes already do.

The same principle extends outward to v6-only ISPs which need to run a beefier version of that at their interface to the Internet. This hack only needs to stay in place whilst v4-only networks still exist (though that might be a long time), but it does do the required bridging function albeit in a kludgy way.

0
0

Great British Great Bake Off gets new judge

John Sager
Mushroom

Der Nigel und Jean Spiel

Or Die or Das? I don't do Deutsch. Anyway, I quite like the idea of N & J sparking off each other but they ain't by any means the masters of repartee, so reluctantly it had to be Clarkson.

However it looks like the programme's makers have just committed ritual Seppuku, and for much more venial motives than Top Gear.

0
0

You should install smart meters even if they're dumb, says flack

John Sager

Engineers say no

Reading the comments, which being from a sample of Reg readers, will be by and large of an engineering bent & discipline, they are almost universally negative. Being 'little people' govt won't listen to us unless we became a big, organised angry but articulate mob, which won't happen. So we rely on engineers who have a track record of being listened to by govt to articulate our negative views. What? You mean to say there aren't any? The only ones who get listened to have been captured by the system? Quelle surprise!

I guess the classic example is David Nutt - tell us what we want to hear or you're toast. So unfortunately all the venting here & elsewhere will have precisely no effect. All we can do is to insulate ourselves personally from this madness & hope we can avoid the worst effects. I've had a diesel gen set for a *long* time. It was bought during an era of flaky countryside 11kV distribution but I've kept it for future flakiness further up the chain:(

15
0

Printers now the least-secure things on the internet

John Sager

Re: Do printers really need to be connected to the internet?

They probably aren't, directly, but it seems that all manufacturers of kit these days want their box to phone home. Perhaps only on installation but often to keep in contact either all the time or periodically. So they talk upnp to the router and set up a little hole. I've had to put a firewall rule in to my (home-brew router) to stop my printer phoning back to HP.

I've recently bought a z-wave controller and that set up a ssh session to a cloud server to provide remote access from android/iPhone apps. No thanks. I'll do the remote access myself, so that ssh session now doesn't get started.

Supposedly to manage a Netgear WiFi extender I should log into it via some name that resolves to a cloud server somewhere and it will automagically log me on to the device. Sod that for a game of soldiers, I've set up to log on directly.

Now, I can sort this stuff, but most consumers can't. I do wonder what the motivation is here. Do the manufacturers want to make it easier for Joe Public, or is this a golden opportunity to collect usage data which can then be sold on? Either way, it's a mess.

9
0

Net neutrality activists claim victory in Europe

John Sager

Amen. I would love to be able to use QoS markings on incoming packets in my own network. I suspect though that my ISP wouldn't be too keen on acting on QoS marks I send them. It's just too easy to game.

1
1

New booze guidelines: We'd rather you didn't enjoy yourselves

John Sager

Lots of wonga from Brussels, which hopefully will stop in a couple of years or so.

3
0
John Sager

Re: because you can't enjoy yourself without a drink?

It's OK the guvmint saying "don't drink to excess". However the latest value of 'excess' is patently stupid. In any case, it's hardly likely to be effective advice to people who value the feeling of being legless despite the morning-after effects.

5
0

Power cut crashes Delta's worldwide flight update systems

John Sager

Re: @choleric

Bravo sir! However it'll take more than a few bob to do that. Perhaps if you could persuade the moneybags that it would cure Gerbil Worming then you'll have far more money than you know what to do with.

3
0
John Sager

Re: Leap Seconds

This is why there is so much pressure to kill off leap seconds. The ITU recently kicked that can down the road for another few years, but personally, I don't see why this is still such a problem. We've had leap seconds for decades and computer time protocols have been designed to signal future leap seconds for a *long* time. It does involve the strange concept of a specific minute at the end of June or December should have 61 secs. The specs also allow for 59 secs too but that is unlikely now ever to happen.

You could write the software to deal with a step, but Google decided to just slow down the computer notion of the time in a controlled fashion for several hours so that after the leap second actually occurs the clocks are exactly back in sync. That is probably much more friendly to existing applications.

8
1

TP-Link fined $200k, told to be nice to wireless router tinkers after throwing a hissy fit

John Sager

Re: Let me get this straight

I suppose they could localise a version of their machine for the US- and have a separate- far more useful- far more power version- with extra channels and power- for the rest of the world

It's a bit more subtle than that. The US power limits are higher than most other countries - 30dBm on 2.4GHz versus 20dBm in the UK. However they haven't got the top 10MHz of the band that we have. There is much more variation though in allowed frequency ranges in the 5GHz band across the world, and this is probably what gets the FCC's knickers in a twist.

It's one thing, though, to set regulatory limits. It's entirely another thing whether the radio hardware will actually produce the allowed power. Probably kit designed as APs will, but that will not necessarily be the case for clients such as laptops.

5
0

IPv6 now faster than IPv4 when visiting 20% of top websites – and just as fast for the rest

John Sager

Re: We didn't run out of ipv4

Don't get me wrong, getting rid of NAT is good, and I operate an ipv6-only website which really helps to keep the peasant scum out.

True, for a while. I've just looked at my firewall logs going back about 3 weeks. In that time I've had about 40k v4 'door knockers' that my firewall dropped. The v6 equivalent is essentially zero except for a few odd probes from pnap.net which look like attempts to measure performance. This is on a home network prefix with no outward-facing servers. That won't last but I think we have a few years before it gets bad.

2
0
John Sager

Re: And what about BT and Virgin?

Some of the smaller ISPs have been at 100% deployment for a couple of years now. AAISP have as has IDNet.

I used to be with an Entanet reseller years ago, and got connected to Entanet's experimental service, and then after a hiatus, to their main service (on a different prefix). However that eventually failed when some lash-up kit they used for connections via BT 20C networks failed. I got fed up of waiting for them to fix it & moved to AAISP a couple of years ago. I very occasionally see v6 outages - there was one yesterday for a while - which I notice when, particularly, fonts.googleapis.com hangs (lots of websites seem to use this).

Naturally I'm all dual-stack here for all my hosts except for backward vendors such as the TV kit. It would be good to go v6 only but that needs a 6-to-4 proxy service somewhere for all the v4-only services out there that will never die, and I can't do it until all the v4-only kit here goes to recycling.

1
0

Captain Piccard's planet-orbiting solar aircraft in warped drive drama

John Sager

Re: It's a start

It is for autonomous and continuous craft.

I'll sorta buy that. It's more likely that a uav (hence no need for pilot safety & life support stuff) could be engineered within current & <10yr future constraints. That's OK for mapping/surveillance but wifi/tv transmitters will rapidly eat into the power budget. There is still the issue of energy to manufacture solar cells (and batteries) but that's the price to pay if the business benefits outweigh that.

1
0
John Sager

No, it's not

It's a dead end. The air transport industry we currently have only works through a combination of the energy density of kerosene, the efficiency of jet engines at the end of a nearly 80 year development cycle, and similar improvements in the application of aerodynamic design.

Electric aircraft have to replicate that. They will benefit from the aerodynamic advances, but we must be getting reasonably asymptotic on that. Energy will still need to be stored as we can probably only expect a factor of 2 or 3 improvement in solar cell energy conversion and we fly at night. So we need a big step in battery energy density. Plus either an incredibly fast charge process (2 nuclear power stations at Heathrow), or a quick battery swap-out process and a slower recharge (1 nuclear power station at Heathrow)

Then how do we make an 'electric jet engine'? I guess the technique would be to replace the jet core in a high-bypass turbofan (e.g. Trent 900) with a similarly specified electric motor (about 56 MW at takeoff).

Stick with the kero & manufacture it from CO2, H2O and nuclear energy when the oil & gas runs out.

25
7

Mobile broadband now cheaper than wired, for 95 per cent of humanity

John Sager

Order of magnitude errors

There are a few in this, and even on a cursory re-reading of the article, the author should have spotted them. I'm sure the aggregate pipework from Europe to Rest of World is more than 131kbits/sec!

1
0

UK's climate change dept abolished, but 'smart meters and all our policies strong as ever'

John Sager

Re: All for doing away with meter reader

If 'phone home with an accurate reading' was all it was designed to do then there would be a lot less resistance. However the subtext is 'demand management' i.e. cut you off, or perhaps a bit more cleverly, temporarily switch of some appliances. That is, or should be, a no-no. I've no problem with improving energy efficiency as long as it's done in an economically realistic way (no stupid restrictions on kettle consumption). But however good or bad the energy efficiency of our appliances is, in the rich, civilised country that we apparently are, then the energy infrastructure should be robust enough to cope with the demands placed upon it both now and in the future.

17
0

Microsoft's cringey 'Hey bae <3' recruiter email translated by El Reg

John Sager

At least it still has some English(ish) words, though the syntax grates. The way Unicode is going this kind of 'communication' will just be a string of random emojis soon.

5
0

TP-Link abandons 'forgotten' router config domains

John Sager

Same rubbish with Netgear

I bought a Netgear wifi extender, and the setup process went through a similar DNS name. Once I worked out what was going on, the wifi extender had got a DHCP address in my network and somehow my browser got redirected to that. Anyway, now it has a fixed address in my network and after updating the firmware there's a rule in my firewall to block outgoing connects from that address.

It also has a local name in my network but for a while, trying to use that in the browser gave me a bunch of 404s so I had to use its IP address. However that now seems to have corrected itself.

At least, though, it has a web config interface. A cheap TP-Link managed switch I bought had no web config. It used a config app that only runs under Windows:((

0
0

Page:

Forums

Biting the hand that feeds IT © 1998–2017