Filelevel security? Referring to file-permissions and such? Well then, just go with ACL's and you have the same functionality on a gnu/linux system, or any other *nix OS.
File-sharing... NFSv4 is starting to get very good now but maybe not there yet, so go with NFS and automounter, if you want a bit more security just add a ipsec-tunnel and let you NFS traffic flow... You could probably also add some additional security to this by having the clients use keys stored in the LDAP and received when the user logs in.. Or if you want something with a per-user login you can always go to Samba and use the CIFS protocol...
Network security? Domain user-accounts? Configure the clients and/or the servers with LDAP/Kerberos authentication. If you want you can even configure them to authenticate towards a Windows AD domain...
This is the beauty of such systems.. You can do just about anything your mind can think about, and automate it all in some easy scripts...
We just fixed a quite nice thing in our computer-lab at work, and it is so simple.. Backup and restore of simple system images, and it even works for windows systems.. When we have configured a system we just boot it via PXE and do a dump to a NFS share of all the disks in the system and then we have a good backup.. When we then want to restore a system we just simple boot it again via the PXE and chose restore and it restores everything.. All required for this was one tftp-server/dhcp-server/nfs-server, generic kernel image that supports all the different disk-controllers we are using... Simple embedded ramdisk that enables us to mount a nfs-fs dd the images to disk and about 200 lines of shell-scripting...
Don't bash down on things you don't know much about, at least without having the phrase 'to my knowledge' somewhere in the post..
Did you think about all those extra costs like 'client-licenses' or whatever they now are called? Did you think about that Exchange server license? Did you think about all those other applications that you have to buy extra?
With a basic gnu/linux system you can get mailserver/fileserver/webserver/development software all for free, if the knowledge to maintain it internally.. If not the support-contracts for those systems are not that big.. And if you are running gnu/linux on the servers in a company it will be so much easier to migrate workstations too if you don't need any windows-specific applications..
Another few things... Mirrored boot-disks in windows? Don't you have to pay extra to do that in software, if that's even possible? If you want to run virtual servers to reduce the number of machines for non-cpu hungry apps you don't have to buy vmware, just use KVM...
There are MANY benefits with running gnu/linux in a company but it all depends how big it is, and how much knowledge you have internally.
I'm not saying that this guy did not deserve this, but i do think about how much more information that might have been twisted.
And if 90% of all network traffic where spam then a single 10Gbit link should have around 240000 spam-mails per second passing by, or 20736000000 per day...
And if the Atlantic cables between europe and USA where a total of 100Gbit that would be able to deliver 40 spam-mails per person/day in the world. And there is much more BW than that out there...
2 ideas for you to think about...
1. Install a live CD-image to the drive or boot from a write-protected USB memory or similar... That way at every reboot they will go back to the default-config.
2. If you really need windows and explorer to browse IE-only pages then it would probably easier to install linux and setup a vmware-player install to automaticly start on the machine, and for the config-options you just set it to discard all changes to the filesystem, so if they reboot you are again back to the defaults.
If they have any need to keep bookmarks one idea could be to use the bookmark-syncer so even if they are booting into a ramdisk it would sync the bookmarks.
If they need to save files, or are using Explorer for the browsing then one idea could be to place their profiles (but not the web-cache!) on a USB-stick to enable them so save files and to keep their bookmarks between reboots..
The only bullet-proof way i can see of these too is probably booting a linux-system on a ramdisk and using the bookmark-syncer since it has less things that can go wrong...
Hope you figure something out.
there may even be conflicts in laws where it's illegal to do something and in another country it's illegal not to do it. Oh... Country X - Do it and go to jail. Country Y - Dont do it and you will got to jail.:)
- If there is an atmosphere you can use a simple fan to blow the dust away. - Make the solar-collector a little convex and add some type of 'shaker' that would allow the dust drain off the panel. Maybe even just driving around would cause enough vibrations for this. - For the camera, add a simple lens-cap that could protect it. - For additional cleaning of different areas, have a number of tubes to the lens and other critical areas and then have a small fan attached to blow away any remaining dust. Might even be useful to clear away dust from stones it want to study. - To reduce the weight why not put most of the processing power into the lander that extends an antenna a few meters into the air while keeping the same size on the solar panels to allow for more power to the instruments and drive, and if the lander-relay is out of range just reduce the power to the instruments and increase the power to the transmitter. - In the lander build a 'car-wash' that could clean the robots if needed.. No requirement for more weight on the robot...
Or maybe another idea that could be much better... Have a number of much smaller robots that can assist each other with cleaning and/or power each with it's own transmitter that could relay data to the lander-relay, then a much smaller antenna would be needed.. Just put one of those smaller robots so it has clear sight to both robots and it could act as a relay. If one of the smaller robots, with a needed instrument, would get a faulty transmitter they could just bundle it together with one of the working ones.
Another idea to reduce the need for heavy and power-hungry transmitters could be to place loads of micro-sats in orbit around the planet that just would relay data,
Cant understand why NASA needs to implement everything in a single bot since by splitting it up into lots of smaller ones you would have a much lower risk of losing everything and the ability to explore a much larger area.
Never gonna happen... The recording industry would just shut it down since it could be used for copyright infringement =)
Well joke aside... You probably never gonna be able to take pic of a CD to get any good info out of it due to image distortion and such, but maybe there will be some backward compability with the future holographic devices, or maybe just a brand new market for some future company that can sell those old cd/dvd-readers to people that needs to restore the data...
I have written it once, and here it comes again... If people don't start taking care of their old picture albums that they have on their old CD's we will be the first generation in history that leaves any proof that we where here.. Except for a few old cd's that nobody can read...
Remember that many of those cheap cd's might only last a few years before they start going bad, and even with one of those expensive you might have problems if you want to recover some data in 10 years, so try and migrate the data every few years to some new type of storage-media... And of course, those lifespan-estimates are if you store the media correctly in a black plastic binder so they don't get any light on them that shortens the lifespan quite a bit.
What i have done to keep the data a bit more secure is running a raid5 and if a disk fails i just replace it.. And should probably be a good idea to do a few more backups to DVD per year... Or maybe just go back to the old-fashioned way of printing out pictures that i want to keep
I would suggest that they either require the voters to register at least 2 months before the actual vote, and maybe that they would need to be on atleast 50% of the technical-meetings around it...
Another way that would be much better would be to vote for a standard with software and if less than 50% have it implemented after a year or 2 then the it will not become a ISO standard.. Then only the companies that actually implement the stuff will get to vote.
Well, i would only recommend Gentoo to those that have lots of experience with different linux-distributions and never to a first time user..
If you want to switch from Windows i would recommend you to have a look at ubuntu/kbuntu where they have most things gui-fied and a easy to use pkg-system.
This is the problem with the all the people that want to switch from windows to a linux-distribution. Just because they have 'good knowledge about computers' does not automatically give them the know-how on running a linux-distribution.
I had a friend that has LOTS of Unix (as a user only) knowledge and that wanted to switch to a linux-dist at home.. I recommended him to use unbuntu to ease the migration but just because he thought he could manage it he took the Gentoo-path and got a screwed up system and then complains that 'Linux does not work'...
I would say it's something a bit more like this.
Gentoo is like going to a restaurant, ordering your dinner, and having the chef offer you to go to the kitchen and help out. Either way, you will have to make everything from scratch like slaughter the cow, dig up the potatoes....:)
And this is why i like gentoo.. It's flexible when it's needed. But i have to agree that some parts can be a bit too much.
Pros:
- You compile everything.
Cons:
- You have to compile everything. (atleast once)
I use vmware to boot windows maybe once or twice a year and never allow it to modify the image i have on disk... What about booting that, installing the software and then rebooting and going back to the orig image and installing the software again?... then i have not modified anything, just installed the software twice on the same OS.
hmm... Another thing that might work could be to have multiple sources for the energy.. (i'm no laser expert:)
But my idea, have a system with maybe 20-30 lasers that all focus their low-power beams on a single point. 10x20mW lasers should(?) have a total effect of 200mW, but ofcourse if you hit different parts of the bug it will probably not have any effect on the bug itself... Maybe put 10 lasers in a row instead of all around the room could make it a bit easier to hit the same spot, but then again, if the system thought your eye where a mosquito...:)
Hmm... lets see... The IDE interface has been around since around 1984 so that's around 24 years.. Quite impressive... SCSI came at 1981 so that's around 26 years... Depending on the adapter you might even be able to access one of those old SASI disks that came around 1979, so now we are up to about 28-29 years of old hardware that you can access with currently available controllers... And you could even read punchcards with current hardware.. Just get a scanner:)
The issue is always if you have some possibility to read the media in the future, and it's always a hard thing if you have something that requires some extra reader with moving parts that can fail even if it's not being used due to corrosion and such... And i do think that a plain controller-card without any moving parts can be a bit easier to store, and if just using lots and lots of disk you can just migrate the data as time go by and the disks becomes cheaper.. Alot more fuss if you would want to migrate any of those LTO tapes to some new tape since that would require someone to fetch the tape, put it into a reader, read the data back, verify the data and then continue on with the next tape.. Just look at the past.. The amount of storage the disks have has exploded.. I remember when i got my first 'big' drive of a whole whopping 20MB and now around 20 years later i could fit 250 copies of that in my RAM.. So the problem is not really 'how do we store all the data' but more 'How do we migrate the data to new storage in the future?'
1. Man paints on cavewalls - still visible ~30000 years 2. Man carves on stone-platters - still visible after ~20000 years 3. Man writes on paper/papyrus etc - still readable after ~7500 years 4. Man invents computers - All unmaintained data older than 40 years is lost:)
And yes, it's fun to mess with people at this hour:)
Shure you could do that... but i don't think the average geek here has a couple of hundred thousand to keep their data secure:)...
But some stuff that you might want to think about... keep a couple of tape-drives + machines tucked away with the tapes since you never know if the tape-tech or device-bus that you connect it to the system with will go obsolete.. Have seen horror-examples on that where they have the data on some media, but NO way to get it out since the device had failed from just sitting in the storage-facility... And if you are going to store some computer-equipment for that many years it might even be good to think about storing it in some container where you replace the air with some inert gas to reduce/eliminate oxidation of the circuits.
So to make the a long story short, tapes are great, if you still have a working reader for it 30 years down the road:)
If you really want security just go with 2 raid5's that you then do manual backups between... Remember that the most common source of dataloss is software failure..
Slashdot Mirror
Ohh... Now i have to get myself a big truck and attach some nice sport-cars... ;)
Filelevel security? Referring to file-permissions and such? Well then, just go with ACL's and you have the same functionality on a gnu/linux system, or any other *nix OS.
File-sharing... NFSv4 is starting to get very good now but maybe not there yet, so go with NFS and automounter, if you want a bit more security just add a ipsec-tunnel and let you NFS traffic flow... You could probably also add some additional security to this by having the clients use keys stored in the LDAP and received when the user logs in..
Or if you want something with a per-user login you can always go to Samba and use the CIFS protocol...
Network security? Domain user-accounts? Configure the clients and/or the servers with LDAP/Kerberos authentication. If you want you can even configure them to authenticate towards a Windows AD domain...
This is the beauty of such systems.. You can do just about anything your mind can think about, and automate it all in some easy scripts...
We just fixed a quite nice thing in our computer-lab at work, and it is so simple.. Backup and restore of simple system images, and it even works for windows systems..
When we have configured a system we just boot it via PXE and do a dump to a NFS share of all the disks in the system and then we have a good backup.. When we then want to restore a system we just simple boot it again via the PXE and chose restore and it restores everything.. All required for this was one tftp-server/dhcp-server/nfs-server, generic kernel image that supports all the different disk-controllers we are using... Simple embedded ramdisk that enables us to mount a nfs-fs dd the images to disk and about 200 lines of shell-scripting...
Don't bash down on things you don't know much about, at least without having the phrase 'to my knowledge' somewhere in the post..
Did you think about all those extra costs like 'client-licenses' or whatever they now are called? Did you think about that Exchange server license? Did you think about all those other applications that you have to buy extra?
With a basic gnu/linux system you can get mailserver/fileserver/webserver/development software all for free, if the knowledge to maintain it internally.. If not the support-contracts for those systems are not that big.. And if you are running gnu/linux on the servers in a company it will be so much easier to migrate workstations too if you don't need any windows-specific applications..
Another few things... Mirrored boot-disks in windows? Don't you have to pay extra to do that in software, if that's even possible? If you want to run virtual servers to reduce the number of machines for non-cpu hungry apps you don't have to buy vmware, just use KVM...
There are MANY benefits with running gnu/linux in a company but it all depends how big it is, and how much knowledge you have internally.
It's fun how everyone is twisting information, or just picking numbers out of the sky...
- responsible-for-as-much-as-90-percent-of-all-net-t raffic.html
From the "never!" link you posted.
"It's estimated that 80 percent of the traffic on the Internet is, in fact, spam."
http://arstechnica.com/news.ars/post/20070903-p2p
There we have "P2P responsible for as much as 90 percent of all 'Net traffic"
I'm not saying that this guy did not deserve this, but i do think about how much more information that might have been twisted.
And if 90% of all network traffic where spam then a single 10Gbit link should have around 240000 spam-mails per second passing by, or 20736000000 per day...
And if the Atlantic cables between europe and USA where a total of 100Gbit that would be able to deliver 40 spam-mails per person/day in the world. And there is much more BW than that out there...
Well.. It's the chicken and the egg story but for computers..... Without good drivers there cant be any good games..
And it's not just about 3d... good 2d performance is also a big issue, and without open specifications it's very hard to write good drivers..
2 ideas for you to think about... 1. Install a live CD-image to the drive or boot from a write-protected USB memory or similar... That way at every reboot they will go back to the default-config. 2. If you really need windows and explorer to browse IE-only pages then it would probably easier to install linux and setup a vmware-player install to automaticly start on the machine, and for the config-options you just set it to discard all changes to the filesystem, so if they reboot you are again back to the defaults. If they have any need to keep bookmarks one idea could be to use the bookmark-syncer so even if they are booting into a ramdisk it would sync the bookmarks. If they need to save files, or are using Explorer for the browsing then one idea could be to place their profiles (but not the web-cache!) on a USB-stick to enable them so save files and to keep their bookmarks between reboots.. The only bullet-proof way i can see of these too is probably booting a linux-system on a ramdisk and using the bookmark-syncer since it has less things that can go wrong... Hope you figure something out.
Country X - Do it and go to jail.
Country Y - Dont do it and you will got to jail.
It's still legal to unlock the phone... But you are still bound to the subscription during that time.
... here in sweden we are allowed to do whatever we want with hardware that we buy.....
Just a few simple ideas that would help them..
- If there is an atmosphere you can use a simple fan to blow the dust away.
- Make the solar-collector a little convex and add some type of 'shaker' that would allow the dust drain off the panel. Maybe even just driving around would cause enough vibrations for this.
- For the camera, add a simple lens-cap that could protect it.
- For additional cleaning of different areas, have a number of tubes to the lens and other critical areas and then have a small fan attached to blow away any remaining dust. Might even be useful to clear away dust from stones it want to study.
- To reduce the weight why not put most of the processing power into the lander that extends an antenna a few meters into the air while keeping the same size on the solar panels to allow for more power to the instruments and drive, and if the lander-relay is out of range just reduce the power to the instruments and increase the power to the transmitter.
- In the lander build a 'car-wash' that could clean the robots if needed.. No requirement for more weight on the robot...
Or maybe another idea that could be much better... Have a number of much smaller robots that can assist each other with cleaning and/or power each with it's own transmitter that could relay data to the lander-relay, then a much smaller antenna would be needed.. Just put one of those smaller robots so it has clear sight to both robots and it could act as a relay. If one of the smaller robots, with a needed instrument, would get a faulty transmitter they could just bundle it together with one of the working ones.
Another idea to reduce the need for heavy and power-hungry transmitters could be to place loads of micro-sats in orbit around the planet that just would relay data,
Cant understand why NASA needs to implement everything in a single bot since by splitting it up into lots of smaller ones you would have a much lower risk of losing everything and the ability to explore a much larger area.
Never gonna happen... The recording industry would just shut it down since it could be used for copyright infringement =)
Well joke aside... You probably never gonna be able to take pic of a CD to get any good info out of it due to image distortion and such, but maybe there will be some backward compability with the future holographic devices, or maybe just a brand new market for some future company that can sell those old cd/dvd-readers to people that needs to restore the data...
I have written it once, and here it comes again... If people don't start taking care of their old picture albums that they have on their old CD's we will be the first generation in history that leaves any proof that we where here.. Except for a few old cd's that nobody can read...
Remember that many of those cheap cd's might only last a few years before they start going bad, and even with one of those expensive you might have problems if you want to recover some data in 10 years, so try and migrate the data every few years to some new type of storage-media...
And of course, those lifespan-estimates are if you store the media correctly in a black plastic binder so they don't get any light on them that shortens the lifespan quite a bit.
What i have done to keep the data a bit more secure is running a raid5 and if a disk fails i just replace it.. And should probably be a good idea to do a few more backups to DVD per year... Or maybe just go back to the old-fashioned way of printing out pictures that i want to keep
I would suggest that they either require the voters to register at least 2 months before the actual vote, and maybe that they would need to be on atleast 50% of the technical-meetings around it...
Another way that would be much better would be to vote for a standard with software and if less than 50% have it implemented after a year or 2 then the it will not become a ISO standard.. Then only the companies that actually implement the stuff will get to vote.
Nope, but the existence of wine is proof that people don't like windows and want their apps running on gnu/linux systems..
Oh? Are you really sure?k ers&btnG=Google-s%C3%B6kning&meta=lr%3Dlang_en%7Cl ang_sv
http://www.google.se/search?hl=sv&q=concrete+spea
If that drunk had a Ford would he be forced to switch to a Volvo just because they had not developed a Ford meter??
And just comparing this to some dangerous crime like drunk-driving is just ridiculous.
Well, i would only recommend Gentoo to those that have lots of experience with different linux-distributions and never to a first time user.. If you want to switch from Windows i would recommend you to have a look at ubuntu/kbuntu where they have most things gui-fied and a easy to use pkg-system. This is the problem with the all the people that want to switch from windows to a linux-distribution. Just because they have 'good knowledge about computers' does not automatically give them the know-how on running a linux-distribution. I had a friend that has LOTS of Unix (as a user only) knowledge and that wanted to switch to a linux-dist at home.. I recommended him to use unbuntu to ease the migration but just because he thought he could manage it he took the Gentoo-path and got a screwed up system and then complains that 'Linux does not work'...
I would say it's something a bit more like this. Gentoo is like going to a restaurant, ordering your dinner, and having the chef offer you to go to the kitchen and help out. Either way, you will have to make everything from scratch like slaughter the cow, dig up the potatoes.... :)
And this is why i like gentoo.. It's flexible when it's needed. But i have to agree that some parts can be a bit too much.
Pros:
- You compile everything.
Cons:
- You have to compile everything. (atleast once)
Well, i'm lucky enough to not live in a DMCA-damaged country! :)
What surprises me is that the people in USA don't start to react to all the s**t they get shoved down their throats...
I use vmware to boot windows maybe once or twice a year and never allow it to modify the image i have on disk... What about booting that, installing the software and then rebooting and going back to the orig image and installing the software again?... then i have not modified anything, just installed the software twice on the same OS.
RJ45 plugs forcing their way into a USB port? :)
hmm... Another thing that might work could be to have multiple sources for the energy.. (i'm no laser expert :)
:)
But my idea, have a system with maybe 20-30 lasers that all focus their low-power beams on a single point. 10x20mW lasers should(?) have a total effect of 200mW, but ofcourse if you hit different parts of the bug it will probably not have any effect on the bug itself... Maybe put 10 lasers in a row instead of all around the room could make it a bit easier to hit the same spot, but then again, if the system thought your eye where a mosquito...
Hmm... lets see... The IDE interface has been around since around 1984 so that's around 24 years.. Quite impressive... SCSI came at 1981 so that's around 26 years... Depending on the adapter you might even be able to access one of those old SASI disks that came around 1979, so now we are up to about 28-29 years of old hardware that you can access with currently available controllers... And you could even read punchcards with current hardware.. Just get a scanner :)
:)
:)
The issue is always if you have some possibility to read the media in the future, and it's always a hard thing if you have something that requires some extra reader with moving parts that can fail even if it's not being used due to corrosion and such... And i do think that a plain controller-card without any moving parts can be a bit easier to store, and if just using lots and lots of disk you can just migrate the data as time go by and the disks becomes cheaper.. Alot more fuss if you would want to migrate any of those LTO tapes to some new tape since that would require someone to fetch the tape, put it into a reader, read the data back, verify the data and then continue on with the next tape.. Just look at the past.. The amount of storage the disks have has exploded.. I remember when i got my first 'big' drive of a whole whopping 20MB and now around 20 years later i could fit 250 copies of that in my RAM..
So the problem is not really 'how do we store all the data' but more 'How do we migrate the data to new storage in the future?'
1. Man paints on cavewalls - still visible ~30000 years
2. Man carves on stone-platters - still visible after ~20000 years
3. Man writes on paper/papyrus etc - still readable after ~7500 years
4. Man invents computers - All unmaintained data older than 40 years is lost
And yes, it's fun to mess with people at this hour
Shure you could do that... but i don't think the average geek here has a couple of hundred thousand to keep their data secure :)...
:)
But some stuff that you might want to think about... keep a couple of tape-drives + machines tucked away with the tapes since you never know if the tape-tech or device-bus that you connect it to the system with will go obsolete.. Have seen horror-examples on that where they have the data on some media, but NO way to get it out since the device had failed from just sitting in the storage-facility... And if you are going to store some computer-equipment for that many years it might even be good to think about storing it in some container where you replace the air with some inert gas to reduce/eliminate oxidation of the circuits.
So to make the a long story short, tapes are great, if you still have a working reader for it 30 years down the road
Ehm... Lets hope not. I don't know about you, but my body is just a bunch of cells.. :)
If you really want security just go with 2 raid5's that you then do manual backups between... Remember that the most common source of dataloss is software failure..