Hi I'm working on a flie system called SLASHDOT_FS. it treats the slashdot message posting system as an unlimited write-once file storage system. Data is written to a comments and then changes are updated as diffs in the replys.
comments are encrypted and written using dictionary words to avoid the lameness filter.
I implemented the prototype of this system many years ago using an encoding system called First-Post. I simply use different permuations of the words first-post (FP!, Frist psot!, etc...) along with various dummy account names to encode 1 Kilobyte of information. I run the whole thing off ny Newton.
The bussiness side of SEALAND is the Royal Bank(which is a front for a swiss bank) and data haven called "HavenCO" . Some photos of the principlality of SEALAND. More photos I wonder where they keep the actual data servers and if data resident outside of a country is protected by the countries laws???
I used textedit.app it asked me if I wanted to overwrite the file when I tried to save it after editing it. But it does not ask you to authenticate with your admin password. After it overwrote the file it was owned by the admin user not root.
Trying to answer my own question above, I discovered that any admin user can, without a password, alter the firewall plist to open and close any ports on the fire wall under program control.
This is the same security issue (not a security hole per se) that microsoft was being critisized for. That is a rogue program can open and close ports on the firewall.
here, try it yourself. the following patch will add a port setting called x-windows to your fire wall and open up ports in the 6000 range.
Dang, the lameness filter wont let me show the patch. oh well figure it out for yourself. its easy. just look in:
/Library/Preferences/com.apple.sharing.firewall.pl ist
On mac OSX the sharing-related services GUI and the Firewall GUI are coupled. Turn on Apache and it unblocks port 80 automatically. Turn on SSH and it unblocks 22 automatically. and so on for FTP, AFP. turn off he services and the ports get bliocked automatically.
At present if you want other ports to open, other than these default services, you have to open the ports manually. however I would imagine this coupled action is handled by some.plist xml configuration file. So its probably possible for an application to add its own services to the sharing menu and have them coupled to the firewall if you turn the service on.
On my mac I do manually block the incoming and outgoing license manager ports for MS Office. If you dont and want to share the app on your laptop and desktop then you will lose any open edited docuements if you inadvertently plug them into the same network. I wonder if this lic manager is the reason why MS gave the firewall the ability for apps to open ports in the firewall and to have outbound connections?
Yes it was a svelt pen built into a plexiglass tube. I'd say it was 3/8 to 4/8" in diameter and the height of a normal pen. Since they did not have a standard like blue tooth back then it had a thin wire coming out the back, though I imagine they would have replaced it with IR shortly or RF shortly. There already were RF mice (used for CAD and blueprint entry) availble back then. And I owned an IR remote control watch. So that technology was available too.
at the time there was concern if it would be robust enough for the shop-floor enviroment. Since at that time IBM sold services as much as hardware, they always overspecked their gear so it would not break in the field.
When I was at IBM yorktown Heights, the guy in the next lab over built a pen that had piezo acclerometers and pressure trnasducers built in. You got the time and pressure curves of the 2-d signature as it was signed. IBM never marketed it.
Here's a specific real life question. How can one validate a touchscreen voting system. In a major metropolitan area any given election might have 50 ballot designs (different legisative districits, languages, and multiple party primaries). Each ballot might have 80 choices to make each of which might have 2 to 8 options. Your looking to eliminate errors that might happen less than one in hundred times. and you have to use you fingers to test 1000 terminals.
Since in practice you wont be able to review each ballot cast all you can do is look a totals. So to do this you need to encode you entries--vote the first option 1 time, the second option 2 times and so on. That way you can detect if two buttons have been accidentally swapped.
And of course you are error intolerant to as I said the less than 1% level. So were talking billions of button presses assuming you always press the right one and dont make a mistake.
So how do you pull this off?
is there any way to gaurd against other kinds of errors like buttons offset from their images too?
is there any analogous industry that has this issue?
I got my g-mail account and discovered my mail is stuck there. I cant move it to another account or dowload it to my home computer. Having 1GB of legacy e-mail that could go poof at anytime is not very attractive, so I stopped using it.
Gov, people dont want to have their documents open correctly 95% of the time. they want 100%. so its gonna stay MS as a defecto, er.. I mean de facto, standard I predict.
And the version change and new features only makes it more so.
not just classified but ALL work was stopped on friday. Note this does not mean vacation time. In fact al vacations are cancelled. It mean everyone stops production work and only performs activities related to safety and security enhancement, inventories and training. Really its a good thing and its happening because the head of Los Alamos is a former admiral who runs a tight ship and does not tolerate anything but teamwork.
The artiucle is a giant ill informed rant. For example he berates apple for offering a lossless format by saying it cant be the same as the original CD. What part about Lossless does he not get?
Then he quotes a bunch of people talking about 128KBS MP3s as not sounding good, and assumes that that's all he needs to know and AAC and MP3 at 128 are the same.
finally he praises rhasphody for using 192 bits per second and says they use the same compression software. Again not understanding the difference between AAC and MP3 or that even these names are not descriptive enough. AAC after all can hide several possible codec's under its skirts and MP3 comes in many flavors too.
Herr Doktor Grammar Nazi, sir, I beg your pardon but what on earth does Japanese Rice Wine have to do with this and since when can "FUCK" be used in the possessive form, "FUCK'S"?
IIRC, 1 watt-second of light contains about 4xE+19 visible wavelength photons. So if the scene is illumnated with a 100 watt bulb then 4 Billion photons is equivalent to a 10 fempto second shutter speed.
Of course if he was infact only modeling the photons that made it to the lens then the number might be a few hundred times larger.
Thus I dont understand why this page is taking so long to load. If he had just put those photons into the optical fiber carrying my web connection I would have gotten them sooner.
I also note the introduction of access control lists!
this gives a more fine grained file access permission set than just unix users and groups. But I wonder how they are going to do both of these and have it play nice. Will I have to always check for both types of protection now? (just as I have to check both for permissions and for the separare BSD flags (aka File locking).
Their is also a mention of unifying all service launching under a single command lauchd. this coul dbe nice to keep track of what is going on and making sure compatible sets of processes get launched together much the way firewall now adapts to running service automatically by opening and closing their ports as needed.
Whether the State gets it or the Company gets it it is critical to get this off the books. Otherwise the company slowly accululates huge on-book liabilities that probably never come due but it cant write off. The money never gets back in circulation.
On the otherhand who should get the money. Why is the state the benificiary? Another way of giving it back is to award it to like minded customers. That is give it to the company. Their lower operating costs effectively will be returned to either the customers who shop there or to the investors who think investing in these kinds of comapnies is good. Eitherway like minded consumers benefit from lower costs.
I'd say givign it back to the company makes a lot of sense. Giving it to the state then next best thing. Sunsetting them is critical.
Sorry to be a Mac zealot for a moment (actaully my linux machines out number my macs 60 to 1). But its a well known fact that It departments always have fewer mac people than PC people than their ratio of mac to PCs would account for. The reason is of course obvious, macs dont have as many problems, users can solve their own network/driver/security/printer issues. Since they can install their own external drives (formerly scsi and now firewire) and they come with a higher level of trim like firewire and video than stock PCs, the owners empircially dont have to upgrade their macs and they tend to have a practical lifespan 25 to 50% longer (see studies by TRW and GULF).
PCs in the workplace are what Robery Cringley (I, Cringley) calls the IT dept full employment act. At my own workplace where PC techs outneumber macs techs 20:1 even though the number of macs to PCs is closer to 1:5, they once tried to force everyone to adopt a common platform and guess which one they voted on?
My mac does have sick days occasionally, but I dont envy PC users. My Linux computers are all just servers. So they really dont get much stress from constantly installing applications or doing thinks that cause them to red-line their disk usage. Thus they are as solid as a rock and never go down (same is true of my g4 mac servers). However they do get out of date on their patches and I truly worry about all the services I might have turned on that I dont know about. I'm not a good enough sys admin to trust myself to know if say Apache needs certain port maping and RPC sevices so I cant just go turning everything off. My solution is to firewall them and get a better sys admin to stay on top of the needed patches.
while my macs also have some "extra" srevices turned on I'm reasonably assured they were designed in a coherent fashion. When I turn on off a service the firewall automaticall closes those ports too. Since mac packages dont (normally) spray install files all over your system into places like/etc/usr//opt/bin and/sbin it makes removing things really easy and prevents cruft build up. (this by the way is why I will not install that loathsome gnu-darwin package: it for example even replaces/bin/make !!!)
Maybe this is what they meant about smart systems replacing IT techs.
The thesis that monochomatic sources and tighter filters would help sounds good. True notch filters would probably have too much angle dpendence but very narrow filters could be made.
But I still dont understand how the screen works with current projectors. Current projectors use a broad band light bulb and separate the spectrum into three componenets. They cant be highly narrowing the bandwidth of the of these components or they would be throwing away most of the light.
ergo, current projectors must be emitting most of the visible spectrum not just narrow R,G and B. So how can the screen be selective. I dont get it.
The poster of this article is an idiot for suggesting this will prevent re-sale of rental DVDs. In fact the original DVD that is generating all these copies must still exist.
What this is really about is allowing the rental store to make copies of a dvd legally. How many times has my local video store not had enough copies of a movie I wanted to watch? now they will never be out. How many times has a movie I rented been too scratched to play (especially children's movies)? Now I will never get scratched DVD again. How many times have I got a late fee (and denied someone else a chance access to a movie) by being too lazy to run out to the video store on a speical trip to return it? Now I wont have to return the DVD.
the net result is higher profits for the rental store and thus potentially lower rental costs and bore convenience for me.
remember rental stores dont make profits on the dvds they resell, they merely recoup investment capital tied up in the CDs. Everytime one of those DVDs is too scratched to resell they lose that money. Now they wont even have to buy as many copies of a DVD: one copy will suffice to make all the rental copies.
Finally its arguable if rental DVD sales and normal DVD sales even compete in the first place. Condisering the relative few rental DVDs available, and their dicey condition, and their uncertain availability, and the fact that they come to market very late in the product cycle the sorts of consumers that buy in these two distict markets probably has little overlap. Moreover a sold DVD either through a retail chanel or a rental chanel is from the studios point of view a full sale--that is they get the full value for the sale. it is the rental store that is selling it for less at a loss.
Safari loads the 250 icon is serial order one at a time. Firefox loads icons in batches of i'd guess about 8 at a time and in no particular order. it must be five or ten times faster than safari. I wonder what is going on?
Are you talking about the mac or the widows version. I wonder why the mac version if 4.7 Mb while the mac version is 8.6 Mb. both incredibly small but why the difference? Does the mac one implement other features (say ftp?)
Right now a 802.11b wireless connection from my laptop to my wireless router is faster than my DSL connection. hence there was no drawback in using wireless throughout the house and my lifestyle has adapted to it.
In fact I suspect this has been one of the major drivers in Laptops becomeing popular. For interet use they were as fast as desktops, but were wireless, and the convenience was great. With Apple products this used to be even more true because the laptops had the same speed processors as the desktops (unlike the PC universe where svelt Laptops severly lag desktops in performance.) Thus until the G5s came out choosing laptop over a desktop was a no brainer.
With this new 200Mbs connection once again you have to choose: wicked fast connection with a WIRE or go unwired. For most internet surfing the other end of the pipe is too slow to keep up even with 802.11b, but that will change if 200mbs becomes ubiquitous.
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comments are encrypted and written using dictionary words to avoid the lameness filter.
I implemented the prototype of this system many years ago using an encoding system called First-Post. I simply use different permuations of the words first-post (FP!, Frist psot!, etc...) along with various dummy account names to encode 1 Kilobyte of information. I run the whole thing off ny Newton.
The bussiness side of SEALAND is the Royal Bank(which is a front for a swiss bank) and data haven called "HavenCO" . Some photos of the principlality of SEALAND. More photos I wonder where they keep the actual data servers and if data resident outside of a country is protected by the countries laws???
the prinicipality of SEALAND wants to be your data haven.
I used textedit.app it asked me if I wanted to overwrite the file when I tried to save it after editing it. But it does not ask you to authenticate with your admin password. After it overwrote the file it was owned by the admin user not root.
This is the same security issue (not a security hole per se) that microsoft was being critisized for. That is a rogue program can open and close ports on the firewall.
here, try it yourself. the following patch will add a port setting called x-windows to your fire wall and open up ports in the 6000 range.
Dang, the lameness filter wont let me show the patch. oh well figure it out for yourself. its easy. just look in:
At present if you want other ports to open, other than these default services, you have to open the ports manually. however I would imagine this coupled action is handled by some .plist xml configuration file. So its probably possible for an application to add its own services to the sharing menu and have them coupled to the firewall if you turn the service on.
On my mac I do manually block the incoming and outgoing license manager ports for MS Office. If you dont and want to share the app on your laptop and desktop then you will lose any open edited docuements if you inadvertently plug them into the same network. I wonder if this lic manager is the reason why MS gave the firewall the ability for apps to open ports in the firewall and to have outbound connections?
at the time there was concern if it would be robust enough for the shop-floor enviroment. Since at that time IBM sold services as much as hardware, they always overspecked their gear so it would not break in the field.
okay, send me some samples of your signature and a blank check. And we'll see....
When I was at IBM yorktown Heights, the guy in the next lab over built a pen that had piezo acclerometers and pressure trnasducers built in. You got the time and pressure curves of the 2-d signature as it was signed. IBM never marketed it.
Since in practice you wont be able to review each ballot cast all you can do is look a totals. So to do this you need to encode you entries--vote the first option 1 time, the second option 2 times and so on. That way you can detect if two buttons have been accidentally swapped.
And of course you are error intolerant to as I said the less than 1% level. So were talking billions of button presses assuming you always press the right one and dont make a mistake.
So how do you pull this off?
is there any way to gaurd against other kinds of errors like buttons offset from their images too?
is there any analogous industry that has this issue?
I got my g-mail account and discovered my mail is stuck there. I cant move it to another account or dowload it to my home computer. Having 1GB of legacy e-mail that could go poof at anytime is not very attractive, so I stopped using it.
And the version change and new features only makes it more so.
not just classified but ALL work was stopped on friday. Note this does not mean vacation time. In fact al vacations are cancelled. It mean everyone stops production work and only performs activities related to safety and security enhancement, inventories and training. Really its a good thing and its happening because the head of Los Alamos is a former admiral who runs a tight ship and does not tolerate anything but teamwork.
Then he quotes a bunch of people talking about 128KBS MP3s as not sounding good, and assumes that that's all he needs to know and AAC and MP3 at 128 are the same.
finally he praises rhasphody for using 192 bits per second and says they use the same compression software. Again not understanding the difference between AAC and MP3 or that even these names are not descriptive enough. AAC after all can hide several possible codec's under its skirts and MP3 comes in many flavors too.
what a rube.
Herr Doktor Grammar Nazi, sir, I beg your pardon but what on earth does Japanese Rice Wine have to do with this and since when can "FUCK" be used in the possessive form, "FUCK'S"?
Or is that a contraction for "FUCK IS".
Of course if he was infact only modeling the photons that made it to the lens then the number might be a few hundred times larger.
Thus I dont understand why this page is taking so long to load. If he had just put those photons into the optical fiber carrying my web connection I would have gotten them sooner.
Their is also a mention of unifying all service launching under a single command lauchd. this coul dbe nice to keep track of what is going on and making sure compatible sets of processes get launched together much the way firewall now adapts to running service automatically by opening and closing their ports as needed.
On the otherhand who should get the money. Why is the state the benificiary? Another way of giving it back is to award it to like minded customers. That is give it to the company. Their lower operating costs effectively will be returned to either the customers who shop there or to the investors who think investing in these kinds of comapnies is good. Eitherway like minded consumers benefit from lower costs.
I'd say givign it back to the company makes a lot of sense. Giving it to the state then next best thing. Sunsetting them is critical.
PCs in the workplace are what Robery Cringley (I, Cringley) calls the IT dept full employment act. At my own workplace where PC techs outneumber macs techs 20:1 even though the number of macs to PCs is closer to 1:5, they once tried to force everyone to adopt a common platform and guess which one they voted on?
My mac does have sick days occasionally, but I dont envy PC users. My Linux computers are all just servers. So they really dont get much stress from constantly installing applications or doing thinks that cause them to red-line their disk usage. Thus they are as solid as a rock and never go down (same is true of my g4 mac servers). However they do get out of date on their patches and I truly worry about all the services I might have turned on that I dont know about. I'm not a good enough sys admin to trust myself to know if say Apache needs certain port maping and RPC sevices so I cant just go turning everything off. My solution is to firewall them and get a better sys admin to stay on top of the needed patches.
while my macs also have some "extra" srevices turned on I'm reasonably assured they were designed in a coherent fashion. When I turn on off a service the firewall automaticall closes those ports too. Since mac packages dont (normally) spray install files all over your system into places like /etc /usr/ /opt /bin and /sbin it makes removing things really easy and prevents cruft build up. (this by the way is why I will not install that loathsome gnu-darwin package: it for example even replaces /bin/make !!!)
Maybe this is what they meant about smart systems replacing IT techs.
But I still dont understand how the screen works with current projectors. Current projectors use a broad band light bulb and separate the spectrum into three componenets. They cant be highly narrowing the bandwidth of the of these components or they would be throwing away most of the light.
ergo, current projectors must be emitting most of the visible spectrum not just narrow R,G and B. So how can the screen be selective. I dont get it.
I think this must require a special projector.
What this is really about is allowing the rental store to make copies of a dvd legally. How many times has my local video store not had enough copies of a movie I wanted to watch? now they will never be out. How many times has a movie I rented been too scratched to play (especially children's movies)? Now I will never get scratched DVD again. How many times have I got a late fee (and denied someone else a chance access to a movie) by being too lazy to run out to the video store on a speical trip to return it? Now I wont have to return the DVD.
the net result is higher profits for the rental store and thus potentially lower rental costs and bore convenience for me.
remember rental stores dont make profits on the dvds they resell, they merely recoup investment capital tied up in the CDs. Everytime one of those DVDs is too scratched to resell they lose that money. Now they wont even have to buy as many copies of a DVD: one copy will suffice to make all the rental copies.
Finally its arguable if rental DVD sales and normal DVD sales even compete in the first place. Condisering the relative few rental DVDs available, and their dicey condition, and their uncertain availability, and the fact that they come to market very late in the product cycle the sorts of consumers that buy in these two distict markets probably has little overlap. Moreover a sold DVD either through a retail chanel or a rental chanel is from the studios point of view a full sale--that is they get the full value for the sale. it is the rental store that is selling it for less at a loss.
Could someone please post a copy of DVD-X-Copy and Games-X-Copy. I..er.."lost" my original copy and I need a back-up. Yeah that's it. Honest!
Safari loads the 250 icon is serial order one at a time. Firefox loads icons in batches of i'd guess about 8 at a time and in no particular order. it must be five or ten times faster than safari. I wonder what is going on?
Are you talking about the mac or the widows version. I wonder why the mac version if 4.7 Mb while the mac version is 8.6 Mb. both incredibly small but why the difference? Does the mac one implement other features (say ftp?)
In fact I suspect this has been one of the major drivers in Laptops becomeing popular. For interet use they were as fast as desktops, but were wireless, and the convenience was great. With Apple products this used to be even more true because the laptops had the same speed processors as the desktops (unlike the PC universe where svelt Laptops severly lag desktops in performance.) Thus until the G5s came out choosing laptop over a desktop was a no brainer.
With this new 200Mbs connection once again you have to choose: wicked fast connection with a WIRE or go unwired. For most internet surfing the other end of the pipe is too slow to keep up even with 802.11b, but that will change if 200mbs becomes ubiquitous.