There seem to be a lot of people using MyWi. I'd never heard of it before, but is there any advantage to jailbreaking the phone and installing this app?
I just use the built in WiFi hotspot function in the iPhone and that works perfectly without needing to install anything extra.
Just clearing something up. The message that he was receiving wasnt a reply from a virus scanner, it was a bounce. I totally agree with you that virus scanners that reply to addresses that are 'sending' viruses are a total waste of time as the sender addresses are always forged.
In this case though, the receiving server is not replying to tell him that he has sent a virus, its telling him that hes sent an email to a nonexistant user. Obviously a message like this can be very useful if you have mistyped an address or something.
As to whether these messages are "junk" or "spam" I guess depends on your definitions and what you expect your spam filter to do. I have no argument that masses of postmaster messages like that are a total pain in the ass, but they are not spam as in the definition of "unsolicited bulk advertising email". Some of them are an annoying byproduct of viruses, but others are there to warn you if there is a problem with delivering your mail and so I think its worthwhile pointing out that there are disadvantages to just blindly filtering them out.
Yes, theres is a web based CGI that comes with it which you can use to view your statistics. It also has a quarantine where any filtered messages are stored so you can view and retrieve any false positives.
This is very true but as an end user unfortunately theres not much you can do. For messages like this to stop, its not only your mail administrator that needs to block bounces like this but every mail administrator on the net. And its not like that's gonna happen anytime soon:(
Re:How is the weather in India these days?
on
DSPAM v3.2 Released
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· Score: 1
Well you should still know how the weather is in India. You should be watching the cricket;)
Re:Does DSPAM inform the sender?
on
DSPAM v3.2 Released
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· Score: 4, Interesting
No. Since spammers mostly use fake addresses, it's pretty pointless trying to send mail back to them. All that would achieve would be that you would receive all the bounces back and you'd get double the junk mail.
Re:DSpam with qmail / vpopmail
on
DSPAM v3.2 Released
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· Score: 4, Informative
This is a legit message from someones mail system. You are receiving this because someone has been infected with a virus. Their computer is sending messages from your email address, and some of these messages are going to non-existant mail addresses. Because they are spoofing your mail address in the From: you are receiving all the bounces.
So technically, this isnt spam or junk mail. Its someones email system doing what its supposed to, returning 'your' email because the sender didnt exist.
Unfortunately, probably not much you can do about this without blocking all such legit system messages.
I would have thought that running 2 bayesian filters would cause more trouble than good. The first filter would be ok as it would be trained like usual.
The second filter would probably have problems because it would only see a small subset of all your mail as the first filter would have removed most of the spam. The second filter's sample would therefore be skewed and it would have far less data to accurately classify spam.
Just my thoughts on the subject anyway...
DSpam with qmail / vpopmail
on
DSPAM v3.2 Released
·
· Score: 4, Interesting
I am using D-Spam on a qmail/vpopmail server and I find that its great in terms of accuracy. Most of my users have never had a false positive and many havent seen a spam after a couple of weeks of training.
The problem that I have with DSpam is the integration side. Im not sure how it goes with other mail systems but integrating it with vpopmail was a major pain. It seems easy, you just put the command in the dotfiles, but in practice getting it to work was quite a trial. Even now it doesnt integrate properly with the web administration, etc despite some scripting and minor code changes.
Because of this Ive been thinking of switching to Spam Assassin simply because of its integration with qmail-scanner. Has anyone else had similar problems or been in a similar situation and found a good solution?
I havent heard of Optus having any problems. Ive been on Optus Cable for a few years and Ive only noticed about 1/2 an hour downtime.
Its Telstra that's the problem, their ADSL network is up and down like a yoyo. Of course then theres the problem that most ISPs buy bandwidth from Telstra...
If we are talking about cars, how about a hybrid car. Or a solar powered car? I think the orginal point was that there are technically better alternatives out there but people won't switch unless there is a reason that benefits them.
Being designed for laptops, arent Pentium M chips much more expensive than P4s? Also, can you get ATX mobos for them?
Since its already a cutthroat pricing market, I guess PC makers dont see the need to up the cost of a PC by putting in a Pentium M chip when they can use a P4. Even if the P4 does use more power.
Some phones (Sony Ericsson P800 / P900 for example) have 'airplane mode' alongside normal, silent, etc. This turns off the mobile phone part of the phone and just gives you the all the other bits.
So yeah, looks like someone's already though of it:)
Not wanting to reply to trolls but just in case anyone actually believes this crap, UFS the filesystem used by BSD systems. If Apple are indeed using this filesystem for the iPod (and it is included in OSX), I'm sure they would be using one of the many BSD implementations and wouldnt bother ripping off a GPL one illegally.....
Most Flash pages do not allow copying of text. So, not only can I not easily bookmark the information I want, I can't copy it either unless I whip out a text editor and re-type everything myself.
Taking this one step further, if you cant get at the text, then neither can Google or other search engines. Its bad for both the people looking for websites and the people running the websites if no one can find what the hell they are looking for!
This will never happen. One of the only reasons Microsoft has such an astronomical marketshare is because of the huge base of software for Windows. Most people I meet really like my iBook, but they will buy PCs because that's what everyone has, thats what they know and thats what all the software runs on (allegedly anyway).
If MS broke away from this and redesigned everything, then users would have to choose between a linux or Mac system that is unfamiliar, or an MS system that is unfamiliar. In this case, there is much more incentive to switch.
More likely is that MS will start to migrate all their software to.Net and slowly jam that down everyone's throats. Windows will become more of a loader for the.Net system.
When I first saw the headline about "painlessly updating", I thought this might be a great article about some new innovative way to update. Its not really anything new or interesting though, the whole article is basically saying:
"cd/usr/src && make world && make kernel && mergemaster will update you system"
Not wanting to sound rude, but no shit sherlock! Yes, this is a painless way to update your system. It is also the way to update your system, as is very well spelled out in the excellent FreeBSD Handbook so I'm not sure why it warrants an article....
Maybe its just me but I think an article about portupgrade or something would have been more useful.
Yes, linux has always had software to update software to the latest official release. What he is saying is that with BSD you can update the system to the latest software too, without waiting for the next version.
In other words, on RedHat or Debian, I can update to the latest apache pretty easily with apt or rpm. Same on BSD. But on BSD I can also easily download and install the very latest updates to the kernel and base system straight from the official CVS without having to wait for binary updates to come. In Linux distros, binary updates to core packages in the base system are often not released (unless they are security related of course) until the next version of the distro. On BSD the latest is always available for download.
It always seems to be the myth that apple computers are expensive, but really in the last couple of years they have become quite competitive price-wise. Not sure of US pricing, but here in Australia you wont find a better quality laptop for $1900 AUD than an iBook. Ive used all different brands and in that price range the iBook kicks ass. Everything else Ive used is either really big and heavy, really slow hardware, or really crappy build quality.
The G5 is also pretty competitive. Yes they're expensive but if you're in the market for a high end workstation the Powermac is certainly not the most expensive, and many would argue the best or one of the best machines in its class.
Admittedly the Powerbook and iMac are a bit overpriced for what you get but the PB is still a very nice machine and you'll get more bang for your buck when the g5 model comes out.
I assume youve never actually used a Java app right? And I assume you are also not a programmer? (And yes I am actually)
You can go on about 2ghz+ CPUs and 100ms window draws all you like, but the simple fact is that complex GUIs in Java are slow. Ever tried Sun's own Java IDE? I tried it a few years ago when it was called Forte, I think its called something else now. Anyway, it used up 120Mb of RAM, took about 3 minutes to start and was pretty painful to use. Thats an extreme example (and I admit quite an outdated one) because it has a very complex GUI but it demonstrates my point; Java GUIs are slow.
And you are right, java guis have been getting faster but I think that has as much to do with a much improved JVM in recent times as it has to do with increased CPU performance. Either way, they are still nowhere near as responsive as a native GUI. Personally for GUI apps, I prefer cross platform C++ toolkits (QT is very nice) rather than Java because you get native performance and native widgets.
But all that aside, the point of my original post was that this guy isnt writing a GUI app, so Java suits well because it gets good mathematical optimisation through the JIT, its easier to write than C and its fully cross platform.
Java can actually be quite fast and efficient for number crunching or scientific applications because of the JIT compilers and automatic optimisation. Its only painfully slow when you need a GUI. It also has a great class library so he should be able to do things like the visualisation and the networking for the clients to send the data home relatively easily, whereas it would take a lot longer to write and debug in C.
Also with Java, he can just offer the JAR file on his site or whatever and people can d/l it and run it. I guess this isnt really important if he's aiming at geeks, but if he's trying to get others to participate, it is handy that people wont need to worry about compiling it themselves or picking the right version (like at the seti@home site).
Its not that they feel the users arent there, its where they see their primary market. They rightly believe that most linux software is open source while most Windows software is closed source and proprietary. Therefore, the simple fact is that if they are to make money licensing QT, they need to charge the Windows developers for a commercial version since this is where all the commercial development is taking place.
As another poster pointed out, they could release both GPL and QPL versions for Windows, similar to what they have done on other platforms but the problem with this is that there would be many developers use the GPL version for commercial software to avoid paying. I guess that TrollTech figures that since this is the area where they make their money, its better to not release QT GPL than to release it and have to try to crack down on the abusers who would probably have otherwise bought a license,
As you said, its unfortunate but you can hardly blame them.
All I can say is, I hope great men dont get sick, or have accidents, or have car trouble, or have a public transport strike, or...:P
"But dude, you've just been struck by lightning in a freak sunday golfing incident"
"Must... get... to... work.... Must... save... corporate... CVS... from... destruction..."
I dont think there is a linux distro which doesn't include Python libraries
This is true, but the description says platforms, not linux distributions. I think the author was thinking about deploying on Windows, Mac, etc as well as linux. Hence the problems with native UI and lack of python runtime. I guess he is after a solution written in Java or C++ using a cross platform toolkit like QT or WX.
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There seem to be a lot of people using MyWi. I'd never heard of it before, but is there any advantage to jailbreaking the phone and installing this app? I just use the built in WiFi hotspot function in the iPhone and that works perfectly without needing to install anything extra.
Just clearing something up. The message that he was receiving wasnt a reply from a virus scanner, it was a bounce. I totally agree with you that virus scanners that reply to addresses that are 'sending' viruses are a total waste of time as the sender addresses are always forged.
In this case though, the receiving server is not replying to tell him that he has sent a virus, its telling him that hes sent an email to a nonexistant user. Obviously a message like this can be very useful if you have mistyped an address or something.
As to whether these messages are "junk" or "spam" I guess depends on your definitions and what you expect your spam filter to do. I have no argument that masses of postmaster messages like that are a total pain in the ass, but they are not spam as in the definition of "unsolicited bulk advertising email". Some of them are an annoying byproduct of viruses, but others are there to warn you if there is a problem with delivering your mail and so I think its worthwhile pointing out that there are disadvantages to just blindly filtering them out.
Yes, theres is a web based CGI that comes with it which you can use to view your statistics. It also has a quarantine where any filtered messages are stored so you can view and retrieve any false positives.
This is very true but as an end user unfortunately theres not much you can do. For messages like this to stop, its not only your mail administrator that needs to block bounces like this but every mail administrator on the net. And its not like that's gonna happen anytime soon :(
Well you should still know how the weather is in India. You should be watching the cricket ;)
No. Since spammers mostly use fake addresses, it's pretty pointless trying to send mail back to them. All that would achieve would be that you would receive all the bounces back and you'd get double the junk mail.
This is a legit message from someones mail system. You are receiving this because someone has been infected with a virus. Their computer is sending messages from your email address, and some of these messages are going to non-existant mail addresses. Because they are spoofing your mail address in the From: you are receiving all the bounces.
So technically, this isnt spam or junk mail. Its someones email system doing what its supposed to, returning 'your' email because the sender didnt exist.
Unfortunately, probably not much you can do about this without blocking all such legit system messages.
I would have thought that running 2 bayesian filters would cause more trouble than good. The first filter would be ok as it would be trained like usual.
The second filter would probably have problems because it would only see a small subset of all your mail as the first filter would have removed most of the spam. The second filter's sample would therefore be skewed and it would have far less data to accurately classify spam.
Just my thoughts on the subject anyway...
I am using D-Spam on a qmail/vpopmail server and I find that its great in terms of accuracy. Most of my users have never had a false positive and many havent seen a spam after a couple of weeks of training.
The problem that I have with DSpam is the integration side. Im not sure how it goes with other mail systems but integrating it with vpopmail was a major pain. It seems easy, you just put the command in the dotfiles, but in practice getting it to work was quite a trial. Even now it doesnt integrate properly with the web administration, etc despite some scripting and minor code changes.
Because of this Ive been thinking of switching to Spam Assassin simply because of its integration with qmail-scanner. Has anyone else had similar problems or been in a similar situation and found a good solution?
I havent heard of Optus having any problems. Ive been on Optus Cable for a few years and Ive only noticed about 1/2 an hour downtime.
Its Telstra that's the problem, their ADSL network is up and down like a yoyo. Of course then theres the problem that most ISPs buy bandwidth from Telstra...
If we are talking about cars, how about a hybrid car. Or a solar powered car? I think the orginal point was that there are technically better alternatives out there but people won't switch unless there is a reason that benefits them.
Since its already a cutthroat pricing market, I guess PC makers dont see the need to up the cost of a PC by putting in a Pentium M chip when they can use a P4. Even if the P4 does use more power.
So they had $61M cash in hand left over after R&D, manufacturing, advertising and everything else that costs them money.
So yeah, looks like someone's already though of it :)
Not wanting to reply to trolls but just in case anyone actually believes this crap, UFS the filesystem used by BSD systems. If Apple are indeed using this filesystem for the iPod (and it is included in OSX), I'm sure they would be using one of the many BSD implementations and wouldnt bother ripping off a GPL one illegally.....
Taking this one step further, if you cant get at the text, then neither can Google or other search engines. Its bad for both the people looking for websites and the people running the websites if no one can find what the hell they are looking for!
If MS broke away from this and redesigned everything, then users would have to choose between a linux or Mac system that is unfamiliar, or an MS system that is unfamiliar. In this case, there is much more incentive to switch.
More likely is that MS will start to migrate all their software to .Net and slowly jam that down everyone's throats. Windows will become more of a loader for the .Net system.
When I first saw the headline about "painlessly updating", I thought this might be a great article about some new innovative way to update. Its not really anything new or interesting though, the whole article is basically saying: "cd /usr/src && make world && make kernel && mergemaster will update you system"
Not wanting to sound rude, but no shit sherlock! Yes, this is a painless way to update your system. It is also the way to update your system, as is very well spelled out in the excellent FreeBSD Handbook so I'm not sure why it warrants an article....
Maybe its just me but I think an article about portupgrade or something would have been more useful.
Yes, linux has always had software to update software to the latest official release. What he is saying is that with BSD you can update the system to the latest software too, without waiting for the next version.
In other words, on RedHat or Debian, I can update to the latest apache pretty easily with apt or rpm. Same on BSD. But on BSD I can also easily download and install the very latest updates to the kernel and base system straight from the official CVS without having to wait for binary updates to come. In Linux distros, binary updates to core packages in the base system are often not released (unless they are security related of course) until the next version of the distro. On BSD the latest is always available for download.
At last a reasonably priced Apple computer.
It always seems to be the myth that apple computers are expensive, but really in the last couple of years they have become quite competitive price-wise. Not sure of US pricing, but here in Australia you wont find a better quality laptop for $1900 AUD than an iBook. Ive used all different brands and in that price range the iBook kicks ass. Everything else Ive used is either really big and heavy, really slow hardware, or really crappy build quality.
The G5 is also pretty competitive. Yes they're expensive but if you're in the market for a high end workstation the Powermac is certainly not the most expensive, and many would argue the best or one of the best machines in its class.
Admittedly the Powerbook and iMac are a bit overpriced for what you get but the PB is still a very nice machine and you'll get more bang for your buck when the g5 model comes out.
I assume youve never actually used a Java app right? And I assume you are also not a programmer? (And yes I am actually)
You can go on about 2ghz+ CPUs and 100ms window draws all you like, but the simple fact is that complex GUIs in Java are slow. Ever tried Sun's own Java IDE? I tried it a few years ago when it was called Forte, I think its called something else now. Anyway, it used up 120Mb of RAM, took about 3 minutes to start and was pretty painful to use. Thats an extreme example (and I admit quite an outdated one) because it has a very complex GUI but it demonstrates my point; Java GUIs are slow.
And you are right, java guis have been getting faster but I think that has as much to do with a much improved JVM in recent times as it has to do with increased CPU performance. Either way, they are still nowhere near as responsive as a native GUI. Personally for GUI apps, I prefer cross platform C++ toolkits (QT is very nice) rather than Java because you get native performance and native widgets.
But all that aside, the point of my original post was that this guy isnt writing a GUI app, so Java suits well because it gets good mathematical optimisation through the JIT, its easier to write than C and its fully cross platform.
Java can actually be quite fast and efficient for number crunching or scientific applications because of the JIT compilers and automatic optimisation. Its only painfully slow when you need a GUI. It also has a great class library so he should be able to do things like the visualisation and the networking for the clients to send the data home relatively easily, whereas it would take a lot longer to write and debug in C.
Also with Java, he can just offer the JAR file on his site or whatever and people can d/l it and run it. I guess this isnt really important if he's aiming at geeks, but if he's trying to get others to participate, it is handy that people wont need to worry about compiling it themselves or picking the right version (like at the seti@home site).
Its not that they feel the users arent there, its where they see their primary market. They rightly believe that most linux software is open source while most Windows software is closed source and proprietary. Therefore, the simple fact is that if they are to make money licensing QT, they need to charge the Windows developers for a commercial version since this is where all the commercial development is taking place.
As another poster pointed out, they could release both GPL and QPL versions for Windows, similar to what they have done on other platforms but the problem with this is that there would be many developers use the GPL version for commercial software to avoid paying. I guess that TrollTech figures that since this is the area where they make their money, its better to not release QT GPL than to release it and have to try to crack down on the abusers who would probably have otherwise bought a license,
As you said, its unfortunate but you can hardly blame them.
"But dude, you've just been struck by lightning in a freak sunday golfing incident"
"Must... get... to... work.... Must... save... corporate... CVS... from... destruction..."
I dont think there is a linux distro which doesn't include Python libraries
This is true, but the description says platforms, not linux distributions. I think the author was thinking about deploying on Windows, Mac, etc as well as linux. Hence the problems with native UI and lack of python runtime. I guess he is after a solution written in Java or C++ using a cross platform toolkit like QT or WX.