I have one disk on the onboard (mobo) ide controller for my root drive. Then a promise ide controller (fasttrack 100, not used for raid in hardware just as 2 extra ide buses). Compile IDE support for the onboard controller in the kernel. Compile the promise support as a module.
To hotswap, umount the disks on that controller, and rmmod the module. Make any changes insmod the module, remount the drives.
Upon module load, it rescans the controller to get the new drive geometry data, so if disks change it all works.
Only problems are if you have a module that controls multiple IDE cards.
If your hotswapping a drive in and out without changing the drive, you dont even need to do that. just unmount and its good to go.
THe module thing is only needed if the drives gemetry changes (IE replaced with a different drive that isnt an identical modal)
OS support for hotswap IDE is shaky, cuz people that need that feature can generally spend the money on the right hardware to do it.
Yeah, I know carts don't like magnets (what electronics do?), but CD's are scratched so damn easily,
Well, as the carts have ROM chips in them, nothing short of physical shock or physically breaking the chip open will damage it.
A magnet will have no effect on a cart. Your thinking magnetic disks and the like.
And the contacts on a cart just get dirty. They last alot longer with those dust covers on them, but they still get dirty.
You can fix this with a q-tip and a cleaner solution (alcohol works ok too, but is fairly 'dirty' itself so its preferable not to use.)
I still play metroid on my old NES to this day (Well, to a couple months ago atleast, but its not because it doesnt work!)
The idea is they want you to use their OS on their hardware to get the free staroffice. Linux and Windows (NT, dunno about others) run on sun hardware as well, and that is what they are wanting to stop.
Not that i aggree with it, but its not my software to argue for:)
While most filtering programs and package mentioned here are for the individual user, or one that has their own mail server, what would you suggest for ISPs to use?
Its not possible to do the 'deny all, allow from a list' at the root level as you have no idea what customers will want to allow.
RBL helps some of course, but not much.
Subject filters help abit too but only for words you Know will be in spam, and sometimes it needs to be multiple words which means a spammer can rearange the subject and it will still get past.
The ISP I work for has been in business for about 7 years now under the same domain name, and has been dictonary scanned/spammed so even when adding a new account chances are someone has been sending spam to that address for alot time before it existed.
Blocking spam by the relay server used is not possible. I get over 500 spams a day to the normal administration addresses (staff hostmaster postmaster etc) and generally 475 of them are different servers. It would not be possible to filter them all, and even so the chances of the relay server being used a second time appears very low.
Most of the 'server-wide' filter programs are designed to try and not block ligit email.
Unfortunatly this means it blocks very little spam in the process.
Would anyone know of any solutions we havent thought of?
And the reason is becase rental stores make MUCH more money on late fees than they do on the price of the rental in the first place.
This is why they never care if your late with videos, as every day is just more dollars for them.
This would remove all late fee costs.
If a DVD costs them $15 and they rent it for $10 but its $5 per day if late, that can add up quick.
With the new format its a one time $10 charge and no more.
In addition they can buy a DVD for a set price and rent it out multiple times.
If it costs $15 and you rent it for $10, after you rent the disc out 200 or so times thats quite alot of money, and Then you get to add on late fees.
With the read once discs your limited to the markup value one time.
So spending $15 on a disc and making at least $2000, if not double that due to late fees, is no longer attractive then maybe this will happen.
But wait, its not..
Your comments arnt totally true in every sense. Most embedded systems have none of the parts you listed above. And custom solution chips are what these are for anyways (atleast at the start)
Later once the bottle necks of 'desktop' equepment such as keyboards monitors etc is solved, then these chips will start finding their way to the desktop.
I dont have the URL handy, but i recal reading an article somewhere about scientists creating a nanoscale enzime that generates electricity in the same manor our bodys do, by breaking down chemicals (food), producing waste and energy.
The research was going to making them provide enough energy specificly to power these nano scale parts with a small food supply.
We are well on the way to being able to manipulate the universe in a way to construct devices on the same scale as life is built upon.
I only hope these things can be realized before the end of my lifetime.
Just got ahold of my copy of the book.
I was half mistaken.
RT is not the record of interest for ports, SRV is.
This is from chapter 15.7.6
Quoting the book (and all credits due)
~~~~~
The experimental SRV record, introduced in RFC 2052, is a general mechanism for locating services. SRV also provides powerful features that allow domain administrators to distribute load and provide backup services, similar to the MX record.
A unique aspect of the SRV record is the format of the domain name it's attached to. Like service-specific aliases, the domain name to which an SRV record is attached gives the name of the service sought, as well as the protocol it runs over, concatenated with a domain name. So, for example:
ftp.tcp.movie.edu
would represent the SRV records someone ftping to movie.edu should retrieve in order to find the movie.edu FTP servers, while:
http.tcp.www.movie.edu
represents the SRV records someone accessing the URL http://www.movie.edu/ should look up in order to find the www.movie.edu web servers.
~~~~~~~~~~~
Actually there are bind records to do everything you say you cant find RFCs on.
Check out O'Reillys DNS and BIND 2nd addition under the 'Misc' chapter on Additional Resource Records.
As i dont have a copy of the book in front of me to quote from.
I believe the first (of many) RFCs on the additional resource records is RFC 1183
There is an ISDN record i believed designed for (as they call it ISDN networks) but contains ISDN numbers for peer to peer routing.
IE, the route ends at ISDN number xxxxxxx so if you cant reach that node over the internet, dial it up yourself!
It has other info in it but i cant remember how things worked.
There is also an X25 record for that type of network too (which i know nothing about)
There is an RT record that is similar to MX
Where MX routes mail to a host, RT routes packets to a host.
RT lets you not only route packets on a per packet data level, but lets you assign priortiys like MX uses so you can have a packet go to say a different tftp server if the main is down!
This way you can do priority routing 100% in DNS over static IP routes.
RT and ISDN (and X25) all were suppost to work together to do what you are desiring.
Bind 8 as far as i know fully supports these records (Atleast from 8.1.2)
The problem is most clients dont honour them at all.
The DNS and BIND book is a Great read on this subject, and I would highly suggest reading that chapter fully before you start work on an already thought-of,completed,and implimented RFC:)
8.2.5 has the bug. The only remote exploits I know of myself were introduced after 8.2.3
Actually, both 8.1.2 and 8.2.3 are Very stable and secure in the 8 series.
I personally run 8.1.2 on half of my servers (Slaves) as i dont need the newer features of 8.2 on them.
8.1.2 is also not effected by the holes introduced in the 8.2.2 series that existed up until i believe 8.2.2p5 (But dont quote me on that patch level)
8.2.3 was basicly a pollished version of this.
Any 8.2 released after optentially has bugs still, adn they did not fix them in the 8.2 tree as 9.x was pending so close.
I have no paid anymind or attention to the 9.x tree at all myself, and wont until it gets a tad more stable.
Additionally, there are still 4.x versions that are extreamly stable and secure and running over the internets backbones.
Just because the version is older doesnt mean it automaticly has bugs.
Some people either know/feel more comfortable with the 4.x zone files than they do with 8.x.
They should not be forced to upgrade if they dont want to.
Its the same with 8.x to 9.x.
Most of the changes are not security or stability anyways, only new features.
Reminds me of the videogame Zillion for the Sega mastersystem.
You had to go around a room and shoot canisters, that when you walked up to them showed an icon (there were maybe 20 total?)
Then after you get the 4 icons, went to a computer and entered them (in any order) to open the door to the next room.
I always had to write them down because remembering pictures is not easy for me to do.
I would have to do the same thing if this was used in real life.. ick
So, why have it signal to near by police?
Wouldnt it make more sense to do something like, oh i dont know, light an idiot-light on the dash and not start the car or something?
Im all for not having privacy invaded in such a non-proven method as this, but assuming the tech worked exactly as desired (no false alarms, no passengers setting it off, etc) wouldnt the extent of a safety device simply not allow the engine to turn over or something?
If one thinks of the human body as just the machine that it is, this only leaves the mind.
Humans are self-aware, and thats why most people concider turning off a human morally wrong.
What if by AI a computer could actually be self-aware just as much as a human?
That is when that line becomes importaint.
Until then, a computer could at most be compared to an animal or insect, something with hardwired responces and no real thought.
(Best comes to mind is a gnat, cockroach, or other similar bug, im sure you get the idea)
Then again, I would have a pretty hard time personally just turning off my pet dog, as much as it sounds like these people dont want to turn off a machine...
Ive bought some color And B&W lcds from Earth Tech. (URL above)
You can get a 12" color lcd for just under $500usd
You can also get a 9.4" monocorome for $300usd
much more expensive for the same as a CRT, but overall not bad.
They recently changed their inventory it seems so I cant find any of the more fitting LCDs i once thought they had, but may be useful none the less.
One day at work i got Very bored and started hunting sites that offered free items like this.
I found a ton of them, but not very many came through after filling out forms and what not.
Some of the ones that came through i thought id share.
For that special someone (Or as an office gag)
http://www.astroglide.com/intro.html
http://www.trojancondoms.com/freestuff/Product/mai n.asp
And on a totally different note, the best jelly beans in the world (IMHO),
http://www.jellybelly.com/newhome/samples.html
There are others out there i just dont have URLs handy for.
In reply, while I dont think its even possible to define 'legitimate use',
Its safe to say if a www.. points to a webpage that says "This domain for sale! Bids starting at $1,000,000" that it is NOT legit.
If the domains main webpage states they only have it to resell it for much more than its worth, it should be revoked.
If the company went out of business and noone would provide keys to enable on a new system, and you were literally totally cut off from any and all support..
You ask if anything could happen to the univ. if they did this.
Well, one would imagine that if the company is totally gone, there is no one to sue.
If there is someone left with rights that has the power to sue for loses, then that is the same someone that would be required to continue its support or that person/company would probably be liable for damages in the first place.
A Napster-ish program (interface atleast)
that lets people trade porn.
Find some way to verify age and what not, and add a way to catgorize things (Which IMO napster should do as well, but alas..)
It wont have the same legal issues as MP3 swapping, so would be a decent business modal, especially for pay-for-subscription.
They may even make enough to justify paying people for their bandwidth (what a thought)
If anyone wants to take this and run, be my guest
Concider it a public domain software modal:}
One answer I thought up awhile back.
Similar to how.edu.giv and.mil are Very restrictive, the same should be done for the common three.
.com and.org are contradictions.
Most companys register their domain in both simply so noone else does.
I can understand this, they dont want any confusion or infringement. But it brings two problems.
a) More money for the registrar
b) if two companys DO register the same domain, one in com other in org, there is confusion.
The idea was: when domain. is registered, the other domain, although not registered or usable, is flagged unavailable.
If i register moo.com, then moo.org will not be allowed to exist by default.
This would solve alot of domain squating problems as well as help stop the greed impled by registering a domain in every tld you can.
Additionally, my opinion was.net should be just as regulated (For example, those that have blocks of IPs from ARIN, or possibly compays with SWIPs larger than a certain size, say/25 or more.. etc)
Of course its a tad too late for all of this now.....
You must realize that DSL only exists between your home and the CO building in the area.
This distance is going to be under 20,000 feet.
aDSL is technically capable of 9mbit down and not far from that up.
One issue is the more DSL lines out of the same CO, the more interfearance it causes each.
But this is minor compared to your other problems outside of that first 20,000 feet.
In the CO building the DSL terminates into a DSLAM which will generally be connected to an ATM network connecting all of that providers DSLAMS in all the COs they service.
Generally these ATM networks are composed of DS3s (45mbit) or OC3s (155Mbit)
Assuming a single OC3 to a DSLAM, your limited to 100 customers before you begin to over subscribe.
On top of this, your IsP must be interconnected into this ATM network as well (Generally with a T1 at 1.54mbit or a T3/DS3 at 45mbit) from the ATM switch in the CO, to the ISP.
If an ISP only has 1.54mbit or even 45mbit, that interconnect can oversubscribe Very quickly.
On top of this, the ISP if smaller will have a number of T1's or fractional T3's.
Most ISPs will get lines to different ISPs.
This is for redundency so if an upstream has issues, the ISP doent notice.
If an ISP has 3 T1s, each to a different uplink, that does not mean you can get 4.5mbit. That means you can get at most 1.5mbit per connection (and even then only for 3 connections)
So assuming your measuring speed to your ISP from your location, there are many many factors there alone to slow the DSL connection down.
on top of this, generally the ISPs mail/web/dns/etc servers are in their NOC, which is not connected directly to your POPs router, and thus there is even more slow down as the trafic has to traverse the internets connections.
Any one of the above links can be over congested and it would appear that your connection is very slow.
Would it be possible to print your own destination address on a label for instance, and sticker the label Over the companys address, and mail out whatever you want to whomever you want with that companys postage account marking?
Would be a nice source for cheap/free postage:}
Cant wait to test this one out...
Tar files retain the date of what they hold.
The distribution he installed from compiled those files on that date, and it would seem he had no need to edit them:}
Slashdot Mirror
I have one disk on the onboard (mobo) ide controller for my root drive.
Then a promise ide controller (fasttrack 100, not used for raid in hardware just as 2 extra ide buses).
Compile IDE support for the onboard controller in the kernel. Compile the promise support as a module.
To hotswap, umount the disks on that controller, and rmmod the module.
Make any changes
insmod the module, remount the drives.
Upon module load, it rescans the controller to get the new drive geometry data, so if disks change it all works.
Only problems are if you have a module that controls multiple IDE cards.
If your hotswapping a drive in and out without changing the drive, you dont even need to do that. just unmount and its good to go.
THe module thing is only needed if the drives gemetry changes (IE replaced with a different drive that isnt an identical modal)
OS support for hotswap IDE is shaky, cuz people that need that feature can generally spend the money on the right hardware to do it.
--Jon
Yeah, I know carts don't like magnets (what electronics do?), but CD's are scratched so damn easily,
Well, as the carts have ROM chips in them, nothing short of physical shock or physically breaking the chip open will damage it.
A magnet will have no effect on a cart. Your thinking magnetic disks and the like.
And the contacts on a cart just get dirty. They last alot longer with those dust covers on them, but they still get dirty. You can fix this with a q-tip and a cleaner solution (alcohol works ok too, but is fairly 'dirty' itself so its preferable not to use.)
I still play metroid on my old NES to this day (Well, to a couple months ago atleast, but its not because it doesnt work!)
The idea is they want you to use their OS on their hardware to get the free staroffice.
:)
Linux and Windows (NT, dunno about others) run on sun hardware as well, and that is what they are wanting to stop.
Not that i aggree with it, but its not my software to argue for
(My how we get off topic heh)
Ive noticed alot of people pronounce 'w' as 'dub' as its a single sylible.
Much easier to spit out dub dub dub dot whatever dot com
While most filtering programs and package mentioned here are for the individual user, or one that has their own mail server, what would you suggest for ISPs to use?
Its not possible to do the 'deny all, allow from a list' at the root level as you have no idea what customers will want to allow.
RBL helps some of course, but not much.
Subject filters help abit too but only for words you Know will be in spam, and sometimes it needs to be multiple words which means a spammer can rearange the subject and it will still get past.
The ISP I work for has been in business for about 7 years now under the same domain name, and has been dictonary scanned/spammed so even when adding a new account chances are someone has been sending spam to that address for alot time before it existed.
Blocking spam by the relay server used is not possible. I get over 500 spams a day to the normal administration addresses (staff hostmaster postmaster etc) and generally 475 of them are different servers. It would not be possible to filter them all, and even so the chances of the relay server being used a second time appears very low.
Most of the 'server-wide' filter programs are designed to try and not block ligit email.
Unfortunatly this means it blocks very little spam in the process.
Would anyone know of any solutions we havent thought of?
And the reason is becase rental stores make MUCH more money on late fees than they do on the price of the rental in the first place.
This is why they never care if your late with videos, as every day is just more dollars for them.
This would remove all late fee costs.
If a DVD costs them $15 and they rent it for $10 but its $5 per day if late, that can add up quick.
With the new format its a one time $10 charge and no more.
In addition they can buy a DVD for a set price and rent it out multiple times.
If it costs $15 and you rent it for $10, after you rent the disc out 200 or so times thats quite alot of money, and Then you get to add on late fees.
With the read once discs your limited to the markup value one time.
So spending $15 on a disc and making at least $2000, if not double that due to late fees, is no longer attractive then maybe this will happen.
But wait, its not..
Your comments arnt totally true in every sense. Most embedded systems have none of the parts you listed above. And custom solution chips are what these are for anyways (atleast at the start)
Later once the bottle necks of 'desktop' equepment such as keyboards monitors etc is solved, then these chips will start finding their way to the desktop.
I dont have the URL handy, but i recal reading an article somewhere about scientists creating a nanoscale enzime that generates electricity in the same manor our bodys do, by breaking down chemicals (food), producing waste and energy.
The research was going to making them provide enough energy specificly to power these nano scale parts with a small food supply.
We are well on the way to being able to manipulate the universe in a way to construct devices on the same scale as life is built upon.
I only hope these things can be realized before the end of my lifetime.
Just got ahold of my copy of the book.
I was half mistaken.
RT is not the record of interest for ports, SRV is.
This is from chapter 15.7.6
Quoting the book (and all credits due)
~~~~~
The experimental SRV record, introduced in RFC 2052, is a general mechanism for locating services. SRV also provides powerful features that allow domain administrators to distribute load and provide backup services, similar to the MX record.
A unique aspect of the SRV record is the format of the domain name it's attached to. Like service-specific aliases, the domain name to which an SRV record is attached gives the name of the service sought, as well as the protocol it runs over, concatenated with a domain name. So, for example:
ftp.tcp.movie.edu
would represent the SRV records someone ftping to movie.edu should retrieve in order to find the movie.edu FTP servers, while:
http.tcp.www.movie.edu
represents the SRV records someone accessing the URL http://www.movie.edu/ should look up in order to find the www.movie.edu web servers.
~~~~~~~~~~~
Hope this helps
Actually there are bind records to do everything you say you cant find RFCs on.
:)
Check out O'Reillys DNS and BIND 2nd addition under the 'Misc' chapter on Additional Resource Records.
As i dont have a copy of the book in front of me to quote from.
I believe the first (of many) RFCs on the additional resource records is RFC 1183
There is an ISDN record i believed designed for (as they call it ISDN networks) but contains ISDN numbers for peer to peer routing.
IE, the route ends at ISDN number xxxxxxx so if you cant reach that node over the internet, dial it up yourself!
It has other info in it but i cant remember how things worked.
There is also an X25 record for that type of network too (which i know nothing about)
There is an RT record that is similar to MX
Where MX routes mail to a host, RT routes packets to a host.
RT lets you not only route packets on a per packet data level, but lets you assign priortiys like MX uses so you can have a packet go to say a different tftp server if the main is down!
This way you can do priority routing 100% in DNS over static IP routes.
RT and ISDN (and X25) all were suppost to work together to do what you are desiring.
Bind 8 as far as i know fully supports these records (Atleast from 8.1.2)
The problem is most clients dont honour them at all.
The DNS and BIND book is a Great read on this subject, and I would highly suggest reading that chapter fully before you start work on an already thought-of,completed,and implimented RFC
--Jon
--Jon
8.2.5 has the bug. The only remote exploits I know of myself were introduced after 8.2.3
Actually, both 8.1.2 and 8.2.3 are Very stable and secure in the 8 series.
I personally run 8.1.2 on half of my servers (Slaves) as i dont need the newer features of 8.2 on them.
8.1.2 is also not effected by the holes introduced in the 8.2.2 series that existed up until i believe 8.2.2p5 (But dont quote me on that patch level)
8.2.3 was basicly a pollished version of this.
Any 8.2 released after optentially has bugs still, adn they did not fix them in the 8.2 tree as 9.x was pending so close.
I have no paid anymind or attention to the 9.x tree at all myself, and wont until it gets a tad more stable.
Additionally, there are still 4.x versions that are extreamly stable and secure and running over the internets backbones.
Just because the version is older doesnt mean it automaticly has bugs.
Some people either know/feel more comfortable with the 4.x zone files than they do with 8.x.
They should not be forced to upgrade if they dont want to.
Its the same with 8.x to 9.x.
Most of the changes are not security or stability anyways, only new features.
--Jon
Reminds me of the videogame Zillion for the Sega mastersystem.
You had to go around a room and shoot canisters, that when you walked up to them showed an icon (there were maybe 20 total?)
Then after you get the 4 icons, went to a computer and entered them (in any order) to open the door to the next room.
I always had to write them down because remembering pictures is not easy for me to do.
I would have to do the same thing if this was used in real life.. ick
--Jon
Sounds like a usage for those X10 lamp dimmer modules and a PC->X10 interface.
The PC just blasts out commands to change the dimmer setting which i believe actually is 256.
Only downside is being limited to the number of codes you can assign modules and hope no groups are in use already.
--Jon
Take a look at
http://www.earthlcd.com/
for LCDs themselfs, and controllers to connect them to a PC.
Beware, its not the easist thing in the world to do however.
-- Jon
So, why have it signal to near by police?
Wouldnt it make more sense to do something like, oh i dont know, light an idiot-light on the dash and not start the car or something?
Im all for not having privacy invaded in such a non-proven method as this, but assuming the tech worked exactly as desired (no false alarms, no passengers setting it off, etc) wouldnt the extent of a safety device simply not allow the engine to turn over or something?
-- Jon
If one thinks of the human body as just the machine that it is, this only leaves the mind.
Humans are self-aware, and thats why most people concider turning off a human morally wrong.
What if by AI a computer could actually be self-aware just as much as a human?
That is when that line becomes importaint.
Until then, a computer could at most be compared to an animal or insect, something with hardwired responces and no real thought.
(Best comes to mind is a gnat, cockroach, or other similar bug, im sure you get the idea)
Then again, I would have a pretty hard time personally just turning off my pet dog, as much as it sounds like these people dont want to turn off a machine...
just something to think about.
-- Jon
http://www.flat-panel.com/
Ive bought some color And B&W lcds from Earth Tech. (URL above)
You can get a 12" color lcd for just under $500usd
You can also get a 9.4" monocorome for $300usd
much more expensive for the same as a CRT, but overall not bad.
They recently changed their inventory it seems so I cant find any of the more fitting LCDs i once thought they had, but may be useful none the less.
--Jon
One day at work i got Very bored and started hunting sites that offered free items like this.
i n.asp
I found a ton of them, but not very many came through after filling out forms and what not.
Some of the ones that came through i thought id share.
For that special someone (Or as an office gag)
http://www.astroglide.com/intro.html
http://www.trojancondoms.com/freestuff/Product/ma
And on a totally different note, the best jelly beans in the world (IMHO),
http://www.jellybelly.com/newhome/samples.html
There are others out there i just dont have URLs handy for.
--Jon
In reply, while I dont think its even possible to define 'legitimate use',
Its safe to say if a www.. points to a webpage that says "This domain for sale! Bids starting at $1,000,000" that it is NOT legit.
If the domains main webpage states they only have it to resell it for much more than its worth, it should be revoked.
--Jon
If the company went out of business and noone would provide keys to enable on a new system, and you were literally totally cut off from any and all support..
You ask if anything could happen to the univ. if they did this.
Well, one would imagine that if the company is totally gone, there is no one to sue.
If there is someone left with rights that has the power to sue for loses, then that is the same someone that would be required to continue its support or that person/company would probably be liable for damages in the first place.
Just because you arnt bright enough to not look at the things you dont want to see, doesnt mean the rest of us are just as dim.
If you dont want to see porn on yahoo, dont go to yahoo's porn section
If you dont want to see pictures in your newspaper, dont read it.
Is this really that hard of a concept?
Hows this for an idea
:}
A Napster-ish program (interface atleast)
that lets people trade porn.
Find some way to verify age and what not, and add a way to catgorize things (Which IMO napster should do as well, but alas..)
It wont have the same legal issues as MP3 swapping, so would be a decent business modal, especially for pay-for-subscription.
They may even make enough to justify paying people for their bandwidth (what a thought)
If anyone wants to take this and run, be my guest
Concider it a public domain software modal
One answer I thought up awhile back. .edu .giv and .mil are Very restrictive, the same should be done for the common three.
.org are contradictions.
.net should be just as regulated (For example, those that have blocks of IPs from ARIN, or possibly compays with SWIPs larger than a certain size, say /25 or more.. etc)
Similar to how
.com and
Most companys register their domain in both simply so noone else does.
I can understand this, they dont want any confusion or infringement. But it brings two problems.
a) More money for the registrar
b) if two companys DO register the same domain, one in com other in org, there is confusion.
The idea was: when domain. is registered, the other domain, although not registered or usable, is flagged unavailable.
If i register moo.com, then moo.org will not be allowed to exist by default.
This would solve alot of domain squating problems as well as help stop the greed impled by registering a domain in every tld you can.
Additionally, my opinion was
Of course its a tad too late for all of this now.....
You must realize that DSL only exists between your home and the CO building in the area.
This distance is going to be under 20,000 feet.
aDSL is technically capable of 9mbit down and not far from that up.
One issue is the more DSL lines out of the same CO, the more interfearance it causes each.
But this is minor compared to your other problems outside of that first 20,000 feet.
In the CO building the DSL terminates into a DSLAM which will generally be connected to an ATM network connecting all of that providers DSLAMS in all the COs they service.
Generally these ATM networks are composed of DS3s (45mbit) or OC3s (155Mbit)
Assuming a single OC3 to a DSLAM, your limited to 100 customers before you begin to over subscribe.
On top of this, your IsP must be interconnected into this ATM network as well (Generally with a T1 at 1.54mbit or a T3/DS3 at 45mbit) from the ATM switch in the CO, to the ISP.
If an ISP only has 1.54mbit or even 45mbit, that interconnect can oversubscribe Very quickly.
On top of this, the ISP if smaller will have a number of T1's or fractional T3's.
Most ISPs will get lines to different ISPs.
This is for redundency so if an upstream has issues, the ISP doent notice.
If an ISP has 3 T1s, each to a different uplink, that does not mean you can get 4.5mbit. That means you can get at most 1.5mbit per connection (and even then only for 3 connections)
So assuming your measuring speed to your ISP from your location, there are many many factors there alone to slow the DSL connection down.
on top of this, generally the ISPs mail/web/dns/etc servers are in their NOC, which is not connected directly to your POPs router, and thus there is even more slow down as the trafic has to traverse the internets connections.
Any one of the above links can be over congested and it would appear that your connection is very slow.
Would it be possible to print your own destination address on a label for instance, and sticker the label Over the companys address, and mail out whatever you want to whomever you want with that companys postage account marking?
:}
Would be a nice source for cheap/free postage
Cant wait to test this one out...
Tar files retain the date of what they hold. :}
The distribution he installed from compiled those files on that date, and it would seem he had no need to edit them