I have a pocketPC/cell phone that can do it and asterisk servers can sure do it. I set them up so when I use speed dial, I have the actual number spelled to me before the device or the server dials. It sure helps me remember the numbers just in case they put me in jail without my devices or similar situations;-))
Once, in a meeting, I talked about the kernel of our system. The guy that was taking minutes (IT specialist) did not have a clue so he wrote:
"The colonel of the system" in the minutes.
I also talked about telnet and he wrote :
"Telenet", as in "television";-)
Sorry, all I have done in PHP was modify or patch other programs so I do not know much about it.
But in Java/J2EE, I still run applications that were developed (and even compiled sometimes) in java 1.0 on the java 5 platform without any changes or security issues. I see some "backward incompatible changes" in the PHP migration info.
With the java/J2EE/jsp programs I have running here and there, I sure do enjoy the care the maintainers of a language take to insure backward compatibility even if it is sometime a little more difficult and involves deprecating faulty methods and creation of equivalent with new names instead of changing the behaviour of existing methods.
So this seems strange to me but hey ! I don't want the PHP community to start throwing flames at me and java, we would quickly get outnumbered I would guess;-)
Yes it is possible in some cases, mainly if their system and programming logic is poorly implemented. The best example that comes to my mind is the PAP-2 that Vonage sold for 10$ in some stores taking for granted one would have to use their service once they bought it.
Since it is legal to reprogram them because I owned the devices and I never used Vonage or sign anything with them anyway, I reconfigured a few to talk to our asterisk server. Re-configuration involved having an entry in my DNS server for vonage tftp server that pointed to my own tftp server in realty. So you could call that spoofing the tftp sources.
I have never tried to fool around with cable companies cable-modems although. But here is a hint: a cable-modem has usually two IPs; a public internet IP and a provider internal IP (like 10.10.10.33). The modem downloads its tftp file through the internal provider network. As an example, the tftp server ip might be 10.10.10.99.
It took more time to cable companies and costed them more money to adapt and provide good speeds during peek times due to the shared pipe between several customers problem.
Why? Because they had to multiply the number of hubs out in the field so the shared pipe would only be shared between a smaller number of customers (maybe a few blocks in a city) thus guaranteeing to respect the minimum average speed advertised. From the hub in the field, it's fiber all the way to the gateway.
Nowadays, both DSL and Cable are pretty much on par except DSL only works close from the Telco switch because the Telcos never installed that many hubs out in the field ! On the other hand, cable needed hubs in the field to avoid congestion.
As far as getting faster speeds than advertised, the speed you get is decided when you boot up your cable-modem.
The modem downloads a config file by TFTP from your provider and it tells it it's maximum speed. If, for any reason they have problems with their configuration file system, they might default all customers to a given higher speed. Mistakes happends too in those systems and management doesn't put the focus on it because they just have got no way to tell that it's happening beside having customers on Torrent 24/24 and analysing their bandwidth usage if they can, their system isn't always as properly configured as we would normally imagine;-)
All devoloppers must write algorithms. It doesn't matter how high level the tools they use are, they still have to give instructions to the machine to do the task and that constitutes and algorithm, even if they don't realize it.
I would have a hard time understanding how someone who's got zero abstraction capabilities with basic algebra ( say, up to grade 12) would suddenly develop such an aptitude when starting to develop algorithms.
Of course, a lot of people without those aptitudes write programs nowadays. But in most cases, they are quick and dirty scripts which tend to be non-optimized. It short, those types of programs are usually hard to maintain, don't scale well and have several security vulnerabilities.
Math and algebra, at least until grade 12, constitute an excellent way to learn to abstract things in your mind and visualize what the program is going to do BEFORE one starts writing the code. It is much more cost effective when you preview and debug the program (or just a function) in your mind first, instead of just writing it and adjust as you go along.
All aliens. Come on down: Easy to say!
on
Roswell UFO Festival
·
· Score: 2, Funny
Easy to say, I am an alien actually reading/. from another galaxy through an ip v256 subspace tunnel (we have a few secret gateways on your planet). I see no mention of travel expenses being reimboursed. I so, I might consider showing up. It just seems to me they want to make money off our poor alien backs so far...
Not really, I code in Java and I use very long variable names AND I keep my code less than 80 columns wide. Here is how to split one line with ridiculously long names :
ClassCastExeception
--theClassCastExceptionThatOccuredInTheAccountingM odule =
----accountingModule.getUtilityInterface().
------findAccountingExceptionHandlerInterface().
--------getLastExceptionOnStack().
----------getExceptionByName(
------------" very very very very very very very " +
------------" very very very very very very very " +
------------" very very very very very long string");
There is several places where you can split the line and I find it more readeable. I remember reading somewhere that the human brain get the data from a page faster when it's narrow. We could ask people who read books at amazingly fast speeds how they would deal 160 columns books. Equaly, have you ever seen a magazine or a newspaper with 160 columns articles in it?
Why ? Because the human brain would have a harder time to assimilate the information.
Personnaly, I think 80 columns got a lot more to do with the human brain than with the hardware we have available.
I am not sure but they seem to say they are going to scan the memory to read the data in the areas leaked by the kernel. When leaking, the memory is wasted (not freed) and I assume there could be valuable data in those area for which the kernel has more or less lost track off, meaning it doesn't read or write from/into these areas anymore. So those areas would be left untouched available for you to read the data that was writen into them, possibly private keys or sensitive data.
I hear that grass is legal in Vancouver, they have coffee-shop (grass-shop?) where you are allowed to smoke and I hear there is at least one where you can buy stuff.
Given the state of development and software in general at MS. It couldn't get worse if some of MS employees felt for it I guess. It could only get better.
I have seen old crappy RPG apps, what you are reffering to (crunching 500 million unique vehicles) sounds it could have been one of those crappy 20 years old application full of spaghetti code.
Let's not mix hardware and software.
Linux and JBoss run just fine on zSeries. Rewriting an application in Java and running it on JBoss is one thing. The hardware you will run it on is another thing.
Note that I don't run zSeries, they are too expensive;-)
I do use virtualization although to reduce the number of deployed servers. For rundundancy, the good old shared drive with a standby machine principle is used. This principle is used by Oracle, IBM, MSCS, etc. and is still viewed as more robust than linux grid computing by most corporate decision takers.
Linux grid computing is becoming more and more mature although and it will be interesting to see what happens in the long run.
I agree, my low cost "mainframe" is a quad core packed with RAM and running a bunch of VMware.
Mainframes have been running VMs for years.
With more powerful PCs, virtualization is now possible with PCs.
I tend to enjoy virtualization, it saves a bunch of money in deployment, management, maintenance, backup procedures, etc., etc. compared to having 12 physical servers to maintain when you can all run it on one piece of hardware (depending on your use case of course).
How do you define a spam attack?
For me, being under spam attacks is the normal status of my email server and I would tend to beleive it is also the case for most email servers;-)
I drop connections from hosts listed in spamcop and once I do accept a message, I scan it for spam and viruses and drop it/archive it depending on the results of the scan.
Spamcop or similar rbl are pretty good at listing well known spamming IPs so I did not notice any considerable amount of spam from china recently in the portion of the spam that makes it to my scanner.
Dropping connections from well know IPs (RBL like spamcop) can save you quite a bit of bandwidth and it can make the difference and keep your server up when some stupid bots try to establish a connection with your mail server to send you crap.
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I have a pocketPC/cell phone that can do it and asterisk servers can sure do it. I set them up so when I use speed dial, I have the actual number spelled to me before the device or the server dials. It sure helps me remember the numbers just in case they put me in jail without my devices or similar situations ;-))
Once, in a meeting, I talked about the kernel of our system. The guy that was taking minutes (IT specialist) did not have a clue so he wrote: "The colonel of the system" in the minutes. I also talked about telnet and he wrote : "Telenet", as in "television" ;-)
Sorry, all I have done in PHP was modify or patch other programs so I do not know much about it.
But in Java/J2EE, I still run applications that were developed (and even compiled sometimes) in java 1.0 on the java 5 platform without any changes or security issues. I see some "backward incompatible changes" in the PHP migration info.
With the java/J2EE/jsp programs I have running here and there, I sure do enjoy the care the maintainers of a language take to insure backward compatibility even if it is sometime a little more difficult and involves deprecating faulty methods and creation of equivalent with new names instead of changing the behaviour of existing methods.
So this seems strange to me but hey ! I don't want the PHP community to start throwing flames at me and java, we would quickly get outnumbered I would guess ;-)
Yes it is possible in some cases, mainly if their system and programming logic is poorly implemented. The best example that comes to my mind is the PAP-2 that Vonage sold for 10$ in some stores taking for granted one would have to use their service once they bought it.
Since it is legal to reprogram them because I owned the devices and I never used Vonage or sign anything with them anyway, I reconfigured a few to talk to our asterisk server. Re-configuration involved having an entry in my DNS server for vonage tftp server that pointed to my own tftp server in realty. So you could call that spoofing the tftp sources.
I have never tried to fool around with cable companies cable-modems although. But here is a hint: a cable-modem has usually two IPs; a public internet IP and a provider internal IP (like 10.10.10.33). The modem downloads its tftp file through the internal provider network. As an example, the tftp server ip might be 10.10.10.99.
It took more time to cable companies and costed them more money to adapt and provide good speeds during peek times due to the shared pipe between several customers problem.
Why? Because they had to multiply the number of hubs out in the field so the shared pipe would only be shared between a smaller number of customers (maybe a few blocks in a city) thus guaranteeing to respect the minimum average speed advertised. From the hub in the field, it's fiber all the way to the gateway.
Nowadays, both DSL and Cable are pretty much on par except DSL only works close from the Telco switch because the Telcos never installed that many hubs out in the field ! On the other hand, cable needed hubs in the field to avoid congestion.
As far as getting faster speeds than advertised, the speed you get is decided when you boot up your cable-modem. The modem downloads a config file by TFTP from your provider and it tells it it's maximum speed. If, for any reason they have problems with their configuration file system, they might default all customers to a given higher speed. Mistakes happends too in those systems and management doesn't put the focus on it because they just have got no way to tell that it's happening beside having customers on Torrent 24/24 and analysing their bandwidth usage if they can, their system isn't always as properly configured as we would normally imagine ;-)
All devoloppers must write algorithms. It doesn't matter how high level the tools they use are, they still have to give instructions to the machine to do the task and that constitutes and algorithm, even if they don't realize it.
I would have a hard time understanding how someone who's got zero abstraction capabilities with basic algebra ( say, up to grade 12) would suddenly develop such an aptitude when starting to develop algorithms.
Of course, a lot of people without those aptitudes write programs nowadays. But in most cases, they are quick and dirty scripts which tend to be non-optimized. It short, those types of programs are usually hard to maintain, don't scale well and have several security vulnerabilities.
Math and algebra, at least until grade 12, constitute an excellent way to learn to abstract things in your mind and visualize what the program is going to do BEFORE one starts writing the code. It is much more cost effective when you preview and debug the program (or just a function) in your mind first, instead of just writing it and adjust as you go along.
Easy to say, I am an alien actually reading /. from another galaxy through an ip v256 subspace tunnel (we have a few secret gateways on your planet). I see no mention of travel expenses being reimboursed. I so, I might consider showing up. It just seems to me they want to make money off our poor alien backs so far...
Can I buy one to beat up people that don't pay ?
Not really, I code in Java and I use very long variable names AND I keep my code less than 80 columns wide. Here is how to split one line with ridiculously long names :
ClassCastExeceptionM odule =
--------getLastExceptionOnStack().
--theClassCastExceptionThatOccuredInTheAccounting
----accountingModule.getUtilityInterface().
------findAccountingExceptionHandlerInterface().
----------getExceptionByName(
------------" very very very very very very very " +
------------" very very very very very very very " +
------------" very very very very very long string");
There is several places where you can split the line and I find it more readeable. I remember reading somewhere that the human brain get the data from a page faster when it's narrow. We could ask people who read books at amazingly fast speeds how they would deal 160 columns books. Equaly, have you ever seen a magazine or a newspaper with 160 columns articles in it?
Why ? Because the human brain would have a harder time to assimilate the information.
Personnaly, I think 80 columns got a lot more to do with the human brain than with the hardware we have available.
Just my 2 cents ;-)
I hear that grass is legal in Vancouver, they have coffee-shop (grass-shop?) where you are allowed to smoke and I hear there is at least one where you can buy stuff.
Given the state of development and software in general at MS. It couldn't get worse if some of MS employees felt for it I guess. It could only get better.
I have seen old crappy RPG apps, what you are reffering to (crunching 500 million unique vehicles) sounds it could have been one of those crappy 20 years old application full of spaghetti code.
Let's not mix hardware and software.
Linux and JBoss run just fine on zSeries. Rewriting an application in Java and running it on JBoss is one thing. The hardware you will run it on is another thing.
Note that I don't run zSeries, they are too expensive ;-)
I do use virtualization although to reduce the number of deployed servers. For rundundancy, the good old shared drive with a standby machine principle is used. This principle is used by Oracle, IBM, MSCS, etc. and is still viewed as more robust than linux grid computing by most corporate decision takers.
Linux grid computing is becoming more and more mature although and it will be interesting to see what happens in the long run.
I agree, my low cost "mainframe" is a quad core packed with RAM and running a bunch of VMware.
Mainframes have been running VMs for years.
With more powerful PCs, virtualization is now possible with PCs.
I tend to enjoy virtualization, it saves a bunch of money in deployment, management, maintenance, backup procedures, etc., etc. compared to having 12 physical servers to maintain when you can all run it on one piece of hardware (depending on your use case of course).
How do you define a spam attack? For me, being under spam attacks is the normal status of my email server and I would tend to beleive it is also the case for most email servers ;-)
I drop connections from hosts listed in spamcop and once I do accept a message, I scan it for spam and viruses and drop it/archive it depending on the results of the scan.
Spamcop or similar rbl are pretty good at listing well known spamming IPs so I did not notice any considerable amount of spam from china recently in the portion of the spam that makes it to my scanner.
Dropping connections from well know IPs (RBL like spamcop) can save you quite a bit of bandwidth and it can make the difference and keep your server up when some stupid bots try to establish a connection with your mail server to send you crap.
According to the bible, God created Adam and Eve was created from Adam's rib. Now, God had to find a way to put brain cells in Eve's head ;-)