I agree with you on throughput limitations. But lets look at some facts. The second biggest router company manages there rotuers with a BSD kernel (Juniper) and runs the routing bits in that kernel (with hooks to move everything into hardware once the desision is made) PC's make good general purpose routing procs they make poor packet shufflers if you take a felable platform with a lot of headroom you can make a great administrative box and if it's coupled with a good hardware asic to push packets it can scale.
Now small networks need BGP as well. It's the best way to have multiple redundant links to providers while running servers beyond mail. I have a small pile of clients some as small as a couple T1's running BGP between two providers.
Funny I run Spam Assassin and rarely download spam. Just setup procmail to put spam in it's own folder, dont download that folder (You are using IMAP to read your mail right:) if I think I might have a false positive I go look in the folder but otherwise it gets cleaned on the server. Filtering spam isn't something the mail client should be doing thats a server job.
Direct tivo is mpeg 2 it looks ok. Big things to make something encode well is a very very high quality A to D stage or a straight digital source. HBO and the likes sends DirecTV the content eary on tape so it can be compressed rather well. Multiple pass encoding is also a big part if yu can preload the high spots of a VBR encode into the low spots you can greatly improve the quality. I beleive DirecTV uses VBR and multi pass rather well for there high value channels (HBO) I dont think there current decoders can deal with Divx and the likes Voom has decoders that can. If it's going to work on the next generation of hardware this isn't an issue.
OK I have Vonage's middle plan unlimted regional calling 25 bucks a month or some such. My Local telco charged me 70 something for less features (12 bucks a month for caller ID with name etc etc etc) To add insult to injury because of how the zone local calls calling somebody 2 towns away is long distance but only a 5 minute drive because they sliced the state up in to narrow slivers (CT) of local calling and those slivers are opposite of the major highways meaning people dont travel much in those directions. A pots like with unlimited long distance simply is not avalible in my state.
Anyway VoIP is a good match it offers all the features that the phone co is getting fat off of and provides much better levels of service if you can deal with the ocational cut by the cutting edge tech. Give it a few years and we will see VoIP boxes with built in batteries to deal with any power outages, built in DSL and Cable Modems to become that one box that stays online and links you to the world.
Nope I'm one of those guys who can look at all the email on the packsniffer so I dont trust my ISP. SSL to the submission port should never be blocked there is not a justifiable reason. Port 25 is the port at issue and I can see the encrypted port also being an issue in the future but never the submission port.
The problem with send rates are your using router CPU time vs putting it on a cluster of boxes that can be scaled a lot cleaper and faster. It's trivial to add another scanning box but not to add another router. I'm not for blocking port 25 period but redirecting it to a mail scanning box that can error out on detecting spam.
OK I own 4 tivos' including a HD tivo all of the direct variety. I have also tried the MS and Myth routes I still use a myth box with some extra hacks to do whole house audio and internet / long term video. Decent modulators cost big bucks even on ebay especialy if you want good sound. This system works but I'll say the 300 buck a pop HD players sold on think geek rock. It will playback a full HD stream and have ehternet in the back along with digital audio. Cheaper than modulators and a lot more flexable. Remember it's at least 3 cables for a decent signal to each TV a pair for svideo and another for 5.1 audio.
The problem with this is? All ISP's realy need to start filtering customers email it's nicer if you have the routers redirect the traffic so it automaitcaly goes though the filters but this is a big issue to stop spam.
Besides unreliability of those servers are there any other reasons not to forward your mail this way?
I assumed so but it seems like a bad idea to not allow all the forms of records to be editable via the web interface from the get go. We do the same thing here and you can enter any sort of valid record type (it's a pull down) it just seems rather short sighted for a registrar to not allow all valid record types.
With few exceptions. You would wonder if they shouldent just code some fame to bring up the primary linked site with a 30 second timer before they can read or post to the forums.
Realy though all this java talk dosent make a whole lot of sence besides posiby for people that think everything should be java and never have had to write something on a memory constrained system or in assembly.
Bleach can be used to disinfect water though it's not my favorite method. http://www.i4at.org/surv/bleach.htm gives the specs. Boiling works without all the nasty chemicals BTW most city water contains bleach to keep the bateria down thats what gives it that fresh nasty city water taste. Bleach and a Brita is a good combo if it's hot as the brita is good at taking the bleach out.
It's somewhat more complicated but they have done that for years by seperating the cache into banks and if one bank fails testing they disable it and sell it as a celly. Remember L2 cache is a big part of a modern chip in actual die space. With dual cores they may well be able to scrap a whole proc and sell the remainder as a single proc chip. That might be realy interesting if they unify the cache later on they could sell a single proc chip with the cache of a dual proc as some sort of extream gaming chip for realy no cost to them.
It is better. As another poster pointed out and I'll concure unified cache is better than seperate but a lot harder to make so the first generation dual core chips will not use it. Expect the second generation to have larger unified cache.
Why stripe? It's onl got 10/100 out the front thats only 12.5 MB a sec so striping isn't going to gain you anything, linear append and a LVM implemtation would be realy nice for a small office. Think about ok your first HD is full plug in a second drive and we can either expand the existing partition onto it, append it's space or simply move it all without second of downtime. LVM snapshots are also probably better than a mirror to deal with a disk failure as mirror sets tend to currupt at the same time snapshots with incrementals are a bit safer.
OK some would say up front and in your face warnings, something akin to we are going to take x information and give it to anybody we feel like/pays us. We are also going to collect y information and corralate it with x and again go and do whatever we please with it.
In general it's the y part of spyware that gets to people the fact that it's reporting home on every web page viewed, program ran and corralating it to other user data. I cant think of a reason why targeting marketing bits would ever need to phone home with anything more than a serial number as it pulls up it's new ad. Spyware often phones home with info about what the user is doing.
Yes and no. Most of your VoIP users are behind firewalls. Vonage at least does not route calls directly because simple NAT breaks SIP so they realy cant. As things progress and more people register to different gateways and fix incomming SIP connections it may get worse.
I live in CT and built parts fo a system to monitor the state troopers and they are not allowed to speed unless they have lights or sirens on. That was 10 years ago and for some reason the system still hasent been implemented. Oh yea it also allarmed if a cop was just parked there when he wasent supposed to be running radar etc but patroling (aka the 3rd shift sleepers). Oh BTW this was at the DOT and they happen to design highways for 75 MPH for a semi with bias ply tires in dry weather.
Now granted I think all drivers should be exempt from speed limits as speeding tickets are just an artifical tax on a portion of the population.
The point of BT is to let others help distributing a file as they download it. For a MS app I would doubt it's usefull I have seen oc3 and greater speeds downloading a single file from them. Now it may be usefull for other ISP's as BT can prefer faster hosts and ditch slow connections. And as the incomming pipe gets overloaded / throttled closer network neighbors should end up being faster hosts and thus keep more of the bandwith required on there backbone.
This does lead to another question just how hard would it be for BT to start trying to find the network closest hosts and use them first? It's not as good at saving bandwith as say multicast but it's something.
Re:What, you want me to put wallpaper on my window
on
Anti-Wi-Fi Wallpaper
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· Score: 1
Your only allowing corprate laptops on the net right? And all corp laptops dont have wifi or bluetooth right? It's not that hard to have IT remove them. No cards means nomatter what your neighbors AP is setup as your fine.
I'm only talking about normal corp security if you have anything that needs to be secure (military bits, state secrets and the like) you need to put the computers in a cage to stop all the RF period.
Re:What, you want me to put wallpaper on my window
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Anti-Wi-Fi Wallpaper
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· Score: 3, Informative
How to stop people from connecting an AP. First off dissalow any remote switches particualy dumb ones. Only allow one MAC address per port. Turn the port off if you see spanning tree. Run 802.1x auth and vlan selection with a 2 factor login (secure ID etc). Only allow one login per person. Not that hard to do with modern Cisco gear, expensive but not hard.
I beleive the series 2 were software hacked last year via the 3 card monty method. There are downloadable ISOs to prep the drives. It does stop updates from working though. Even hacks the Directivo.
OK I'll aswer the question not as somebody thats in either camp just the guy that gets to scale the thing. First off I dont care out nice OO design or business logic etc etc thats all just PHB fluff. Stored procedures allow you to scale a DB if you do it well.
Pretty much it boils down to this if your web app can call one stored procedure and generate the responce your golden. The more time your spending going back and forth grabbing data and colating it just takes to long to scale as you have a bigger memory foot print blocking call sockets theads etc for a longer time. Now thats a perfect world were writing stored procedures is just as easy etc etc etc as writing your web app. Your best results are often from good coding in the rough out stage and replacing whole functions with stored procedure wrappers after profiling where your app is spending most of it's time under load.
OK we have all these DB things that seem more for meta data and seach realy thats a bit secondary to a filesystem. Most filesystems are access by applications for surprise surprise files with very little user files and lots of application files. While it might make snece to mount/home as some DB is a filesystem with piles of indeed and seachable data so the users can be even more clueless to where anything is. The rest of the system needs faster all around and cluster aware from my point of view. Versioning in the FS ala VMS would be a nice thing as well. Disks are the slowest thing on your average system with Gigabit ethernet moving more data than the highest performing single disk in the real world.
They did at one time have that option. For directv it's more tired to your account than the box if you call cust serv they will move the lifetime if you upgrade. Personaly I dont see the point you get free tivo service with the movie stations anyway.
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I agree with you on throughput limitations. But lets look at some facts. The second biggest router company manages there rotuers with a BSD kernel (Juniper) and runs the routing bits in that kernel (with hooks to move everything into hardware once the desision is made) PC's make good general purpose routing procs they make poor packet shufflers if you take a felable platform with a lot of headroom you can make a great administrative box and if it's coupled with a good hardware asic to push packets it can scale.
Now small networks need BGP as well. It's the best way to have multiple redundant links to providers while running servers beyond mail. I have a small pile of clients some as small as a couple T1's running BGP between two providers.
Funny I run Spam Assassin and rarely download spam. Just setup procmail to put spam in it's own folder, dont download that folder (You are using IMAP to read your mail right :) if I think I might have a false positive I go look in the folder but otherwise it gets cleaned on the server. Filtering spam isn't something the mail client should be doing thats a server job.
Direct tivo is mpeg 2 it looks ok. Big things to make something encode well is a very very high quality A to D stage or a straight digital source. HBO and the likes sends DirecTV the content eary on tape so it can be compressed rather well. Multiple pass encoding is also a big part if yu can preload the high spots of a VBR encode into the low spots you can greatly improve the quality. I beleive DirecTV uses VBR and multi pass rather well for there high value channels (HBO)
I dont think there current decoders can deal with Divx and the likes Voom has decoders that can. If it's going to work on the next generation of hardware this isn't an issue.
OK I have Vonage's middle plan unlimted regional calling 25 bucks a month or some such. My Local telco charged me 70 something for less features (12 bucks a month for caller ID with name etc etc etc) To add insult to injury because of how the zone local calls calling somebody 2 towns away is long distance but only a 5 minute drive because they sliced the state up in to narrow slivers (CT) of local calling and those slivers are opposite of the major highways meaning people dont travel much in those directions. A pots like with unlimited long distance simply is not avalible in my state.
Anyway VoIP is a good match it offers all the features that the phone co is getting fat off of and provides much better levels of service if you can deal with the ocational cut by the cutting edge tech. Give it a few years and we will see VoIP boxes with built in batteries to deal with any power outages, built in DSL and Cable Modems to become that one box that stays online and links you to the world.
Nope I'm one of those guys who can look at all the email on the packsniffer so I dont trust my ISP. SSL to the submission port should never be blocked there is not a justifiable reason. Port 25 is the port at issue and I can see the encrypted port also being an issue in the future but never the submission port.
The problem with send rates are your using router CPU time vs putting it on a cluster of boxes that can be scaled a lot cleaper and faster. It's trivial to add another scanning box but not to add another router. I'm not for blocking port 25 period but redirecting it to a mail scanning box that can error out on detecting spam.
OK I own 4 tivos' including a HD tivo all of the direct variety. I have also tried the MS and Myth routes I still use a myth box with some extra hacks to do whole house audio and internet / long term video. Decent modulators cost big bucks even on ebay especialy if you want good sound. This system works but I'll say the 300 buck a pop HD players sold on think geek rock. It will playback a full HD stream and have ehternet in the back along with digital audio. Cheaper than modulators and a lot more flexable. Remember it's at least 3 cables for a decent signal to each TV a pair for svideo and another for 5.1 audio.
The problem with this is? All ISP's realy need to start filtering customers email it's nicer if you have the routers redirect the traffic so it automaitcaly goes though the filters but this is a big issue to stop spam.
Besides unreliability of those servers are there any other reasons not to forward your mail this way?
I assumed so but it seems like a bad idea to not allow all the forms of records to be editable via the web interface from the get go. We do the same thing here and you can enter any sort of valid record type (it's a pull down) it just seems rather short sighted for a registrar to not allow all valid record types.
I'll preface this with I work for a DNS registrar, but why cant you add arbitrary records to your DNS? It's yours isn't it?
Yes
With few exceptions. You would wonder if they shouldent just code some fame to bring up the primary linked site with a 30 second timer before they can read or post to the forums.
Realy though all this java talk dosent make a whole lot of sence besides posiby for people that think everything should be java and never have had to write something on a memory constrained system or in assembly.
Bleach can be used to disinfect water though it's not my favorite method. http://www.i4at.org/surv/bleach.htm gives the specs. Boiling works without all the nasty chemicals BTW most city water contains bleach to keep the bateria down thats what gives it that fresh nasty city water taste. Bleach and a Brita is a good combo if it's hot as the brita is good at taking the bleach out.
I think the ogg guys already have an equivalent codec there just isn't all that nasty drm stuff in it that the media companies so desire.
It's somewhat more complicated but they have done that for years by seperating the cache into banks and if one bank fails testing they disable it and sell it as a celly. Remember L2 cache is a big part of a modern chip in actual die space. With dual cores they may well be able to scrap a whole proc and sell the remainder as a single proc chip. That might be realy interesting if they unify the cache later on they could sell a single proc chip with the cache of a dual proc as some sort of extream gaming chip for realy no cost to them.
It is better. As another poster pointed out and I'll concure unified cache is better than seperate but a lot harder to make so the first generation dual core chips will not use it. Expect the second generation to have larger unified cache.
Why stripe? It's onl got 10/100 out the front thats only 12.5 MB a sec so striping isn't going to gain you anything, linear append and a LVM implemtation would be realy nice for a small office. Think about ok your first HD is full plug in a second drive and we can either expand the existing partition onto it, append it's space or simply move it all without second of downtime. LVM snapshots are also probably better than a mirror to deal with a disk failure as mirror sets tend to currupt at the same time snapshots with incrementals are a bit safer.
There is a difference?
OK some would say up front and in your face warnings, something akin to we are going to take x information and give it to anybody we feel like/pays us. We are also going to collect y information and corralate it with x and again go and do whatever we please with it.
In general it's the y part of spyware that gets to people the fact that it's reporting home on every web page viewed, program ran and corralating it to other user data. I cant think of a reason why targeting marketing bits would ever need to phone home with anything more than a serial number as it pulls up it's new ad. Spyware often phones home with info about what the user is doing.
Yes and no. Most of your VoIP users are behind firewalls. Vonage at least does not route calls directly because simple NAT breaks SIP so they realy cant. As things progress and more people register to different gateways and fix incomming SIP connections it may get worse.
I live in CT and built parts fo a system to monitor the state troopers and they are not allowed to speed unless they have lights or sirens on. That was 10 years ago and for some reason the system still hasent been implemented. Oh yea it also allarmed if a cop was just parked there when he wasent supposed to be running radar etc but patroling (aka the 3rd shift sleepers). Oh BTW this was at the DOT and they happen to design highways for 75 MPH for a semi with bias ply tires in dry weather.
Now granted I think all drivers should be exempt from speed limits as speeding tickets are just an artifical tax on a portion of the population.
The point of BT is to let others help distributing a file as they download it. For a MS app I would doubt it's usefull I have seen oc3 and greater speeds downloading a single file from them. Now it may be usefull for other ISP's as BT can prefer faster hosts and ditch slow connections. And as the incomming pipe gets overloaded / throttled closer network neighbors should end up being faster hosts and thus keep more of the bandwith required on there backbone.
This does lead to another question just how hard would it be for BT to start trying to find the network closest hosts and use them first? It's not as good at saving bandwith as say multicast but it's something.
Your only allowing corprate laptops on the net right? And all corp laptops dont have wifi or bluetooth right? It's not that hard to have IT remove them. No cards means nomatter what your neighbors AP is setup as your fine.
I'm only talking about normal corp security if you have anything that needs to be secure (military bits, state secrets and the like) you need to put the computers in a cage to stop all the RF period.
How to stop people from connecting an AP. First off dissalow any remote switches particualy dumb ones. Only allow one MAC address per port. Turn the port off if you see spanning tree. Run 802.1x auth and vlan selection with a 2 factor login (secure ID etc). Only allow one login per person. Not that hard to do with modern Cisco gear, expensive but not hard.
I beleive the series 2 were software hacked last year via the 3 card monty method. There are downloadable ISOs to prep the drives. It does stop updates from working though. Even hacks the Directivo.
OK I'll aswer the question not as somebody thats in either camp just the guy that gets to scale the thing. First off I dont care out nice OO design or business logic etc etc thats all just PHB fluff. Stored procedures allow you to scale a DB if you do it well.
Pretty much it boils down to this if your web app can call one stored procedure and generate the responce your golden. The more time your spending going back and forth grabbing data and colating it just takes to long to scale as you have a bigger memory foot print blocking call sockets theads etc for a longer time. Now thats a perfect world were writing stored procedures is just as easy etc etc etc as writing your web app. Your best results are often from good coding in the rough out stage and replacing whole functions with stored procedure wrappers after profiling where your app is spending most of it's time under load.
OK we have all these DB things that seem more for meta data and seach realy thats a bit secondary to a filesystem. Most filesystems are access by applications for surprise surprise files with very little user files and lots of application files. While it might make snece to mount /home as some DB is a filesystem with piles of indeed and seachable data so the users can be even more clueless to where anything is. The rest of the system needs faster all around and cluster aware from my point of view. Versioning in the FS ala VMS would be a nice thing as well. Disks are the slowest thing on your average system with Gigabit ethernet moving more data than the highest performing single disk in the real world.
They did at one time have that option. For directv it's more tired to your account than the box if you call cust serv they will move the lifetime if you upgrade. Personaly I dont see the point you get free tivo service with the movie stations anyway.