Are we running out of Ipv4 address or is it Y2K all over again - Design and Architecture Discussion Boards

Good Morning Pete,

Thank you.
I try translate this article in "Duolingo" (https://www.duolingo.com/).
Good book.

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http://www.livrariacultura.com.br/p/c-in-depth-11099769# in depth&ref=11099769&_=0.22851076163351536

C# IN DEPTH
Autor: SKEET, JON
Idioma: INGLÊS
Editora: OREILLY & ASSOC
Assunto: Programação
Edição: 1
Ano de Edição: 2013
Ano: 2013

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Thanks,
Fabio Ingenito.

I am writing an application(C# winforms) that counts calories.

One aspect the the application I would appreciate some ideas or suggestions on is the reporting aspect(a user control within the application).

The reporting control has a graph and a selection of reports that one can run for selected dates or all of the data.

What I am looking to do is to be able to have the report definitions sit outside of the application so that on startup the application fetches the available reports.
This will allow me to distribute the application and reports separately - allowing me to release new reports in the future without releasing a new version of the application.

The report definitions need to contain the logic for how the data is fetched as well as the definition of the chart.
The class holding the data is serialised and loaded on startup and saved to at various points.

So I am open to ideas and suggestions on what I could do.
In essence I am looking for dependency injection with regards to the reporting user control.

Thanks in advance for your ideas

[Edit] Having thought this through a bit more, maybe linking to a DLL dynamically at runtime may be a solution clickety[^] - anyone have any experience of this and/or opinions on it?

Solution

[Edit number 2]I have decided to use a DLL and by making use of reflection query the DLL on the charts available. The DLL will be dynamically loaded at runtime.
The sources of my decision were these two excellent codeproject articles:
Article 1[^]
Article 2[^]
The only issue being that I cannot get generic lists of objects from the assembly due to using .Net 4 so I am using arraylists - heck there may even be a tip(article) in this.

“That which can be asserted without evidence, can be dismissed without evidence.”

― Christopher Hitchens

modified 13-May-15 6:52am.

how make conect two computer in c#

Your question is very vague. There are multiple ways and you would have to pick one which suits your needs. So, your first step would be to formalize your requirement. Then you can get a more concrete answer.

If the brain were so simple we could understand it, we would be so simple we couldn't. — Lyall Watson

You need a network cable to connect two computers.

Superglue and duct-tape. Lots of it.

Bastard Programmer from Hell Suspicious | :suss:

If you can't read my code, try converting it here[^]

Usually there is a Profile page. On each computer add the other computer as a Friend.

This guy should know

as attested by this tweet from the inventor of the World Wide Web himself, Tim Berners-Lee - the number of websites in the world has subsequently declined, reverting back to a level below 1 billion.

http://www.internetlivestats.com/total-number-of-websites

But I would at a guess say that only about 2 billion of the earths population has internet access so that's far too many sites by my way of thinking.

"Around 40% of the world population has an internet connection today 2015"
http://www.internetlivestats.com/internet-users
Yes if you include internet cafe's that are popular in places like India and China

I also happen to know that the USA has reserved over one billion Ipv4 addresses after spending months scanning Whois records so that's about three addresses for every man, woman and child in the US.

If we was in danger of running out of Ipv4's then would IANA not release some of the 250 millions addresses we have above 233.0.0.0 (M-Cast/Broadcasts) and some that are reserved at the low end.

We only have about 1.7 billion homes in the world and everyone sits behind a NAT router so how can we be running out already or is it corporations are sitting on piles of Ipv4's to create a problem because the DoD has about 500 IPs reserved for every member of the military and one ISP alone in the UK has 14 million reserved addresses and that's about the same as the number of total houses in the UK

I am fully aware that the powers that be would like an IP-Address for every milk bottle ever to be produced in the world so that the fridge can report the milk bottle as it becomes empty but just now we are far, far away from using up our 4.3 billion Ipv4 addresses and are being panicked by a scam.

Few ISPs have made the switch and that's two years after we were due to run out of IPv4 addresses and how would a 12 byte address system work when we still use 6 byte MAC addresses in network cards.

WorldPress apparantly has 60 million web sites alone
http://www.forbes.com/sites/jjcolao/2012/09/05/the-internets-mother-tongue/

I have a bit of trouble with these numbers because I sent Google 1000 random searches (very, very slow using many connections) and logged the results to a database of the first ten pages returned and each page contained about 100 links so in total 10 million links were recorded and I only managed to extract about 700,000 unique domain names.

Maybe if I really pushed the boat out I could have got to three million because most of the time the same old names keep popping up for every question known to man using "Personalized search results" and granted all the searches were in English but I did use both .co.uk and .com

Given these results your guess is as good as mine in trying to estimate the total number of current web-sites in the world and I would put it below one hundred million.

Now six months after collecting these results I use a web-bot to see if the sites are still up and running and if a site goes 404 than I run a DNS query to see if the domain name is still registered and what I can say is that small web-sites are dropping like flies.

What brought my attention to something did not seem right was because I record all incoming IP address of connections to my router to a database and I started to notice vast gaps in the distribution of the connection from counties all over the world because no one is using these addresses so I scanned Whois and then google to try to understand what was going on.

Please by all means convince me I am wrong or ask to see some of the data to check this out yourself.

modified 28-Apr-15 12:43pm.

This is the wrong forum for this I'm afraid. You'd be better of posting this in the Lounge.

Dr Gadgit wrote:
Are we running out of Ipv4 address

No, we were running out of available IPv4 addresses.

Dr Gadgit wrote:
or is it Y2K all over again

The tone seems to imply you think Y2K was a hoax. I had to correct enough crap to be able to say it was not.

Dr Gadgit wrote:
Please by all means convince me I am wrong

Er, no; feel free to use any of the 1 billion addresses that has been reserved by the US Smile | :)

Bastard Programmer from Hell Suspicious | :suss:

If you can't read my code, try converting it here[^]

You must be one of the few people to get any work from fixing the Y2K bugs because me and my freinds didn't as much as we would have like too and most people today regard the Y2K trouble as one big hoax.

Google it.

switching over to Euro's kept ten times more people in work than Y2K ever did, myself included

No i cannot use any of the one billion addresses reserved by the USA and that's my point, no one is using them because huge american/uk corporations have taken all the water out of the well and are just sitting on it.

I also spent a lot of time fixing Y2K issues. A lot of developers I have worked with in the 90s also worked on Y2K. The reason that people regard Y2K as a big hoax is because companies spent a fortune correcting problems. It's as though people feel cheated because power plants didn't explode.

Must had been a US thing or the circles you move in because here in the UK I work with some very highly paid professionals who are MVP/MCP/MCSD/Msc/Phd and many are saying the same as me.

Not a question of wanting to see the world come to an end but we were all ready to earn some serious cash working over christmas but the offers never came in so we all knew it was hot air.

Euro conversion was much bigger not that it created a gold rush like we all wanted

Anyway why is it a good thing for US corporations to sit on so many un used IP's ?

You do know that Ipv6 gives us something like four hundred million, billion time more addreses than we have Ipv4 addresses and as you know from my comments above i like making money but not at the cost of becomeing watched more than i am now.

Ipv5 at 8 bits, not 16, would suite me fine

Possibly the industries I was working in at the time - I was heavily in industrial systems then. Perhaps you just weren't in the right field - and I'm based in the UK as well.

I was working for BT at the time in Matelsham research labs as a contractor and got to play with 2mb internet before anyone else i knew.

MS-Access, bit of Excell, SQL-Server 6.5 and i think it was VB4, maybe VB5 was my field at the time so maybe i needed to be more into AS400's or something like COLBOLT to have got any offers.

Also used NT4 server, didn't like XP98, too soft for me at the time

Try dedicated DCS. These were all proprietary systems. Not fun. Lucrative, but not fun.

I have been known to work on Simens PLC Controls but they didn't have dates and just used ladders.

Looks like the other poster nailed it with banking and old colbolt systems and i was not working in banking at the time using anything like that.

What systems were you working on ?

Plant reading systems - oil fields.

Pete O'Hanlon wrote:
It's as though people feel cheated because power plants didn't explode.

Well, yes. We were promised the apocalypse. Food, water, fuel and illegal weapons were hoarded, because it was necessary to survive.
Nothing significant happened.

Well sorry.

harold aptroot wrote:
Nothing significant happened.

It would indeed have been more fun if they had not given a warning a year in advance.

Now, since when does mass-media describe a technical issue in a non-hyping and technically correct (read 'boring') way? No new Y2k bug for some time - it'll be all about cyberwars, cyberterrorists and cybercrime now.

Bastard Programmer from Hell Suspicious | :suss:

If you can't read my code, try converting it here[^]

2038 could be fun again

Given the state of the world, it does not seem like something to worry about Smile | :)

Bastard Programmer from Hell Suspicious | :suss:

If you can't read my code, try converting it here[^]

Dr Gadgit wrote:
You must be one of the few people to get any work from fixing the Y2K bugs because me and my freinds didn't as much as we would have like too and most people today regard the Y2K trouble as one big hoax.

You must be here to make some friends, calling my work a hoax Laugh | :laugh:

Dr Gadgit wrote:
switching over to Euro's kept ten times more people in work than Y2K ever did, myself included

So you counted them? Smile | :)

Bastard Programmer from Hell Suspicious | :suss:

If you can't read my code, try converting it here[^]

"So you counted them"

No need to count to know we have more ants in the world than people.

I did not say your work was a hoax, guess someone must had harcoded "19" into to programs somewhere in the world but it's not like the number moved from being a INT to a Long or anything.