Close, but login to your switch/router and follow the mac-address table. Most 'bigger' switches have a unique mac address on their ports too, so you can poke at the stuff and arp for it. Just because things are layer-2, doesn't mean you can't follow the path.
Of course most of the ideas i've read don't help with non-broadcast/non-open [e]ssid. You could always just do mac address security on your switch (if possible) and lock it down to existing hosts (except for your conf room lans where you may have guests, but that's hopefully a good 'guest net' isolated for you). You can do some nasty things on the ports like have them shut down if they see more than one (or two, for your voip vlan) mac addresses.
yeah yeah, anyways, i'm guessing metamod will likely 'fix' this after a bit, if not, it's just slashdot afterall:) I am sure that the orig poster will read it and check, the rest of the folks deserve what they get, i tried to help.
I travel in the US with a GPS in my laptop bag (Garmin GPS V), but depending on where you travel in the world, you may want to insure it doesn't violate any local laws. For example in (don't mod me funny) Ex-Soviet Russia it is illegal in most cases to have GPS equipment. You can be thrown in jail and it may not be pleasant.
As part of that, when one does a software upgrade on these, I've been trying to talk to the developers (hardware) that fast boot times are actually important. Take a typical Juniper router for example. The "Routing Engine" is a Intel processor running their own flavor of OS. This means when the system boots, it still has to do all those booring POST checks, wait for the disks to seek, run any option roms, etc.. They generally know what the box is going to do, boot from one of the 3 media choices (LS, CF, Disk). If your network is down for a software upgrade of some routing/switching device, and you can't get to your local WoW server (unless it's during a maint window;-) ) or dial 911 on your cool VoIP phone, it starts to make a difference. The OS can generally decide the best way to bring your hardware online these days, we're not dealing with IRQ conflicts anymore.
Saving 2-3 minutes in router boot time is valuable. While the individual value of a node within the network it may be hard to see where that 2 mins is, if your kernel panics or something else ReallyBad(tm) happens, those 2 mins help in getting the routing protocols back up that much faster..
I've considered installing a local fiber loop on my street. We have 11 homes on my street on lots roughly 1-3 acres. There are two homes that are somewhat close and adjacent to our private road, and one lot that is presently undeveloped for a potential total of 14 homes. The two streets (one is a court) provide enough distance for roughly 1km of fiber if you create a entire loop. This isn't that much fiber, but the cost of burying and other "restoration"/boring could cost up to $10/ft, or roughly $30/m. These are likely a lot higher than the true cost as they're based on a utility cost, but give you an idea of the up to $30k that might be necessary to build a simple 1k loop.
That being said, one could easily provision linear fiber (non-ring) for a lot less, and if you and your neighbors care about speed, etc.. (sharing that mp3 server in your basement, or those trees keep getting in the way of the wireless) a short fiber run put in PVC or similar conduit outside buried not that far down (depending on how you want to do it) would provide high reliability over that short distance. A 3com 100BaseFX card costs roughly US$90, and cabling is not *that* expensive even for multiple pairs or outdoor/aerial cabling. Most of the cost is seen in adding connectors which range in cost as not anyone can go to home depot and get a cable crimper, connectors, or polisher. You may find the cost comparable to some more expensive wireless bridges or cheapos with nice cabling/antennas, but for reliability it's the way to go, and you're not too likely to need more expensive cabling unless you're going to do some fancy DWDM or other stuff over the short distance.
That being said, I may be soon using a power washer to dig a trench, or just doing it by hand with a shovel between me and my neighbor to deal with crappy wireless gear reliability.. This will let us communicate over a wired link without fear of the growing trees causing a problem. And the call to miss-dig is free. It also means that we can do fancier stuff in the future at faster than 100M and not have to worry about the limits of copper cabling as much.
Reminder to our readers, if you're going to go more than 2KM, you need single-mode fiber, you can't do it with multimode. You may also need to watch the type of optics you use (SR vs LR, etc..)
Incase nobody else noticed, if you look at your T1 smartjacks they say 'HDSL' on them. (You may notice some say DSL-1 DSL-2)... You can do 1.5Mb/s on a single pair in short distances with the proper HDSL cards installed in your smartjack(s). This helps you if you're close to their fiber hut/SLC.
Specifically my home is served by a T1 going over HDSL4 which gets longer range/distance but it consumes two pairs.
Reminds me of all the time i spent as a kid pounding multiple buttons on my alarm clock at once seeing what it would do. Depending on the buttons pressed you could reveal "secret" features such as what the current seconds count was. I don't think they were really features, but probally more like diagnostics that they could use to figure out if the clock ticked correctly. Either way, there were a lot of clocks taken apart by me:)
I'd follow the use the cheap LinkSys gear (or build something fancy with a Soekris box) but also pick up some old 100M MultiMode(MM) transcievers that have a FE on one side and fiber on the other. Since you've got 5 acres (not that big honestly), i'd stick to wired for everything possible, it will also provide you the best reliability. Use some pvc pipe or conduit to keep it weatherproof outside and you'll be done and have reliable networking that can be upgraded in the future to gigabit and faster as needed.
There is a local burger place here in Ann Arbor that regularly gives out $2 bills and 50 cent coins as change. I frequently leave the change as part of a tip during my next resturant visit. I figure it adds some fun to their lives. Any of them that don't think it's real and ditch it, it's their loss, but i've never gotten a complaint.. then again most of those places know me and i've been going there for 9+ years.
i have a bunch of clocks that i didn't have to change because they picked up the updated signal/are programmed to know when the time change happens in the US. *Many* people and devices are now taking time from an external source (eg: CDMA, GPS, NTP)
It would mean a lot of these devices may not work correctly and it's not like i can upload new firmware to them. Creates a lot of electronic trash, er it has lead, so yeah, must recycle.. how many people that can't figure out to keep their systems from being r00ted are going to keep that stuff out of the landfills..
Well, hope this helps, but there is the package i've written over the past few years (oh my, it's been about 9-10 now..ugh) that i call sysmon. It does network and host based (application) monitoring for most of the well-known services. It's designed to alert to e-mail, so you just need to set up your local e-mail -> qpage daemon on that host and connect modem or TAP/SMS device to your serial port. You could also notify via SNPP as part of qpage or similar process..
It's set up to do network topology and fault isolation based on the "root" location you're at. You can use multiple monitoring hosts and set the systems to monitor each other and if one of them fails the other can take over..
It may suck for you, since the author is a fool, but it may work perfect for your application too, i'll likely never know:)
I have to agree with you entirely. (It's an easy way to increase the RMA rate. It would be possible to do some cool failsafe stuff, but that would increase the complexity of the system a great deal.) The only thing that I see that is missing from most motherboards BIOSes is excellent serial console support. Some motherboards do have it, but others are quite lacking..
While there are neat devices out there that will connect to the video card and keyboard and conver it, such as the Real Weasel, i'd rather see the solution embedded in the existing BIOS infrastructure.
I think the key thing here is to remember what BIOS stands for, which is the
Basic Input Output System. Something to talk to the "known" devices,
such as Serial Port (not USB folks), int13h disks, video and keyboard.
Not to flame/retroll (btw, thanks for the mozilla xpi, that works great!) I was looking for a way in the non-IE browsers. I primarily use Mozilla and Safari and sometimes IE when necessary (because of rendering bugs or IE-specific/required stuff).
This is why i'd like to see a per-website ability to disable plugins and javascript. Some websites use it for evil(tm), others use it because it's the best way to do a good thing. I rarely use flash, primarily only for my pal Strong Bad. The fact that all these websites seem intent on sending me Flash ads is annoying. It's one thing to use the screen space, it's another to waste a lot of cpu time animating something.
If there's some way to disable java/javascript/plugins per-website, please let me know.
I think you're misreading what I posted. I was speaking about the fact that most people can only get high speed access from their cable or telephone company. It's not really possible to purchase unbundled network elements anymore.
I'm not living in rural Louisiana and just got phone service this year. I've seen the cable companies not deliver service within the city limits of a large city if they have to extend it more than 100' from where it already is.
What i'm talking about is a function of a not-for-profit, someone who independently operates the last-mile fiber/copper infrastructure. Someone who provides a level playing field. It's nice that places are getting high speed internet access at home, but the way the service is being delivered is imparing the ability to extend the use of the internet. If your last-mile-of-cabling-operator charges you for each additional protocol/program you wish to operate on your system, what's the incentive to roll out a new service.
Control of the last-mile is key here. Look at SBC -> ATT purchase. Verizon -> MCI. It's the operators of these last-mile monopolies where all the profit is. I'm not saying companies aren't allowed to make a profit, just that there is no investment in extending high speed services to their entire operating area. If they don't care about the "high cost" areas to provide service, implement line-sharing in that area. Create some joint-venture to operate the facilities to reduce the costs for everyone that desires access. Don't spend the time fighting municipal fiber/wireless networks. That's pure monopoly protection, and i'm against it.
You're assuming people have a *CHOICE* about how to gain high speed internet access. Most people are served by at best a duopoly, which is their local telephone company and their local cable company. If you're lucky like me, you get neither. You're at the bottom of the list. No DSL. No Fiber-To-The-Curb/Premise/Home. Just dial-up, or find somone to pay the bill for a T1 or other expensive dedicated service.. which btw, is actually just DSL. (eg: HDSL4).
This means, if your ILEC blocks your VoIP on your DSL service, and you switch to your Cable, which also blocks your VoIP service, what are you to do? They can say "We're not a monoploy, we act independently". If they both deem a service as something they should charge for, much like the idea of VPN service in India, or VoIP in some other countries where they drive a lot of revenue from their long-distance service, the consumer (you) loses.
Who do you appeal to? Your local PUC? Good luck. I hate to sound pesimistic, but the only true solution is true deregulation of the last mile. An independent operator of the physical facilities within a locality. I hope that we see that someday, but it doesn't seem to look like it'll be soon.
I operate our VoIP system at my employer. We have over 120 users across the globe where their mgmt has purchased/acquired them phones, be it soft-phones (xten works nicely) or the nice Cisco 7960 IP phones.
We have a few PRIs in some locales which is nice for PSTN termination, but for the most part, we've got an excellent service and we mostly use it for conference calling. We regularly do several hundred hours of conference calling, and the flexability of each user having their own extension is nice.
We've considered reselling the service, since it would be fairly easy to do, just record some custom IVRs and take those CDRs out of the sql backend and bill them. These things may actually happen, or not.. but th ease in setting up the system and making it work through the power of Asterisk is great. I love it and am using it to operate my home lines as well.
This is what I and my Neighbor do. It's nice becuase if you have conflicts you can figure it out easily.:)
It also means that if you're cataloging them, you don't necessarily need a GPS to know where they are. If you ever see 8285ReeseLaneAP, it's likely me:)
Actually, it worked for longer than it has in awhile (9 mins of gprs connect time..) it turns out there is a nokia field-bulletin for this issue that I just found. Now it's time to see if they'll replace my phone: information about my problem here. It appears the author of that page doesn't speak english as their primary language, but it's easy enough to find the answer for those Nokia 6230 GPRS+BT users.
THANKS! That seems to have helped a lot. my ssh connection is at least still up... going to try it out later.. this will help me a *lot* next time i'm oncall (the reason i got the nokia 6230).
Well, somewhat true, but the issue becomes that when I am getting dropped GPRS connections after under 5 mins of use, and I call them up and they say "screw you, you're trying to use your phone like a modem, we don't support that either" it's more of a function of the provider than the phone/setup i have going..
I've had poor luck with Cingular for GPRS. Including the on-phone GPRS service. I switched over from AT&T and have been unhappy. Hopefully ATTWS will bring some clue to the data side of Cingular. They're also not bluetooth or mac friendly.
Actually, if you look through my recent posts, you'll see that I do have a goal of grid independence. My biggest problems are the water heater, dryer and stove. All electric:(. The ability to do follow-me type services, so I can essentially 'transfer' calls to my wifes cell phone, and other things is what's nice. There are some things that cell phones just aren't good for.. around here some towers lost power an august or two ago, which wasn't a good thing.. that meant PSTN was the way. You haven't heard about any battery companies getting lots of new orders to extend the life of towers for cell companies, so you know nothing was done there..
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Of course most of the ideas i've read don't help with non-broadcast/non-open [e]ssid. You could always just do mac address security on your switch (if possible) and lock it down to existing hosts (except for your conf room lans where you may have guests, but that's hopefully a good 'guest net' isolated for you). You can do some nasty things on the ports like have them shut down if they see more than one (or two, for your voip vlan) mac addresses.
yeah yeah, anyways, i'm guessing metamod will likely 'fix' this after a bit, if not, it's just slashdot afterall :) I am sure that the orig poster will read it and check, the rest of the folks deserve what they get, i tried to help.
I travel in the US with a GPS in my laptop bag (Garmin GPS V), but depending on where you travel in the world, you may want to insure it doesn't violate any local laws. For example in (don't mod me funny) Ex-Soviet Russia it is illegal in most cases to have GPS equipment. You can be thrown in jail and it may not be pleasant.
As part of that, when one does a software upgrade on these, I've been trying to talk to the developers (hardware) that fast boot times are actually important. Take a typical Juniper router for example. The "Routing Engine" is a Intel processor running their own flavor of OS. This means when the system boots, it still has to do all those booring POST checks, wait for the disks to seek, run any option roms, etc.. They generally know what the box is going to do, boot from one of the 3 media choices (LS, CF, Disk). If your network is down for a software upgrade of some routing/switching device, and you can't get to your local WoW server (unless it's during a maint window ;-) ) or dial 911 on your cool VoIP phone, it starts to make a difference. The OS can generally decide the best way to bring your hardware online these days, we're not dealing with IRQ conflicts anymore.
Saving 2-3 minutes in router boot time is valuable. While the individual value of a node within the network it may be hard to see where that 2 mins is, if your kernel panics or something else ReallyBad(tm) happens, those 2 mins help in getting the routing protocols back up that much faster..
That being said, one could easily provision linear fiber (non-ring) for a lot less, and if you and your neighbors care about speed, etc.. (sharing that mp3 server in your basement, or those trees keep getting in the way of the wireless) a short fiber run put in PVC or similar conduit outside buried not that far down (depending on how you want to do it) would provide high reliability over that short distance. A 3com 100BaseFX card costs roughly US$90, and cabling is not *that* expensive even for multiple pairs or outdoor/aerial cabling. Most of the cost is seen in adding connectors which range in cost as not anyone can go to home depot and get a cable crimper, connectors, or polisher. You may find the cost comparable to some more expensive wireless bridges or cheapos with nice cabling/antennas, but for reliability it's the way to go, and you're not too likely to need more expensive cabling unless you're going to do some fancy DWDM or other stuff over the short distance.
That being said, I may be soon using a power washer to dig a trench, or just doing it by hand with a shovel between me and my neighbor to deal with crappy wireless gear reliability.. This will let us communicate over a wired link without fear of the growing trees causing a problem. And the call to miss-dig is free. It also means that we can do fancier stuff in the future at faster than 100M and not have to worry about the limits of copper cabling as much.
Reminder to our readers, if you're going to go more than 2KM, you need single-mode fiber, you can't do it with multimode. You may also need to watch the type of optics you use (SR vs LR, etc..)
Specifically my home is served by a T1 going over HDSL4 which gets longer range/distance but it consumes two pairs.
Reminds me of all the time i spent as a kid pounding multiple buttons on my alarm clock at once seeing what it would do. Depending on the buttons pressed you could reveal "secret" features such as what the current seconds count was. I don't think they were really features, but probally more like diagnostics that they could use to figure out if the clock ticked correctly. Either way, there were a lot of clocks taken apart by me :)
Video and PDF on fast link based in the US. I've survived slashdotting before, go for it ;-)
I'd follow the use the cheap LinkSys gear (or build something fancy with a Soekris box) but also pick up some old 100M MultiMode(MM) transcievers that have a FE on one side and fiber on the other. Since you've got 5 acres (not that big honestly), i'd stick to wired for everything possible, it will also provide you the best reliability. Use some pvc pipe or conduit to keep it weatherproof outside and you'll be done and have reliable networking that can be upgraded in the future to gigabit and faster as needed.
There is a local burger place here in Ann Arbor that regularly gives out $2 bills and 50 cent coins as change. I frequently leave the change as part of a tip during my next resturant visit. I figure it adds some fun to their lives. Any of them that don't think it's real and ditch it, it's their loss, but i've never gotten a complaint.. then again most of those places know me and i've been going there for 9+ years.
It would mean a lot of these devices may not work correctly and it's not like i can upload new firmware to them. Creates a lot of electronic trash, er it has lead, so yeah, must recycle.. how many people that can't figure out to keep their systems from being r00ted are going to keep that stuff out of the landfills..
Would you mind posting a link or e-mailing me in private on the enabling the usb ports on the dtivo series-2?
It's set up to do network topology and fault isolation based on the "root" location you're at. You can use multiple monitoring hosts and set the systems to monitor each other and if one of them fails the other can take over..
It may suck for you, since the author is a fool, but it may work perfect for your application too, i'll likely never know :)
While there are neat devices out there that will connect to the video card and keyboard and conver it, such as the Real Weasel, i'd rather see the solution embedded in the existing BIOS infrastructure.
I think the key thing here is to remember what BIOS stands for, which is the Basic Input Output System. Something to talk to the "known" devices, such as Serial Port (not USB folks), int13h disks, video and keyboard.
I am using IE6 on SP2 (XP Home) when I use IE.
If there's some way to disable java/javascript/plugins per-website, please let me know.
I'm not living in rural Louisiana and just got phone service this year. I've seen the cable companies not deliver service within the city limits of a large city if they have to extend it more than 100' from where it already is.
What i'm talking about is a function of a not-for-profit, someone who independently operates the last-mile fiber/copper infrastructure. Someone who provides a level playing field. It's nice that places are getting high speed internet access at home, but the way the service is being delivered is imparing the ability to extend the use of the internet. If your last-mile-of-cabling-operator charges you for each additional protocol/program you wish to operate on your system, what's the incentive to roll out a new service.
Control of the last-mile is key here. Look at SBC -> ATT purchase. Verizon -> MCI. It's the operators of these last-mile monopolies where all the profit is. I'm not saying companies aren't allowed to make a profit, just that there is no investment in extending high speed services to their entire operating area. If they don't care about the "high cost" areas to provide service, implement line-sharing in that area. Create some joint-venture to operate the facilities to reduce the costs for everyone that desires access. Don't spend the time fighting municipal fiber/wireless networks. That's pure monopoly protection, and i'm against it.
This means, if your ILEC blocks your VoIP on your DSL service, and you switch to your Cable, which also blocks your VoIP service, what are you to do? They can say "We're not a monoploy, we act independently". If they both deem a service as something they should charge for, much like the idea of VPN service in India, or VoIP in some other countries where they drive a lot of revenue from their long-distance service, the consumer (you) loses.
Who do you appeal to? Your local PUC? Good luck. I hate to sound pesimistic, but the only true solution is true deregulation of the last mile. An independent operator of the physical facilities within a locality. I hope that we see that someday, but it doesn't seem to look like it'll be soon.
We have a few PRIs in some locales which is nice for PSTN termination, but for the most part, we've got an excellent service and we mostly use it for conference calling. We regularly do several hundred hours of conference calling, and the flexability of each user having their own extension is nice.
We've considered reselling the service, since it would be fairly easy to do, just record some custom IVRs and take those CDRs out of the sql backend and bill them. These things may actually happen, or not.. but th ease in setting up the system and making it work through the power of Asterisk is great. I love it and am using it to operate my home lines as well.
It also means that if you're cataloging them, you don't necessarily need a GPS to know where they are. If you ever see 8285ReeseLaneAP, it's likely me :)
Actually, it worked for longer than it has in awhile (9 mins of gprs connect time..) it turns out there is a nokia field-bulletin for this issue that I just found. Now it's time to see if they'll replace my phone: information about my problem here. It appears the author of that page doesn't speak english as their primary language, but it's easy enough to find the answer for those Nokia 6230 GPRS+BT users.
THANKS! That seems to have helped a lot. my ssh connection is at least still up... going to try it out later.. this will help me a *lot* next time i'm oncall (the reason i got the nokia 6230).
Well, somewhat true, but the issue becomes that when I am getting dropped GPRS connections after under 5 mins of use, and I call them up and they say "screw you, you're trying to use your phone like a modem, we don't support that either" it's more of a function of the provider than the phone/setup i have going..
I've had poor luck with Cingular for GPRS. Including the on-phone GPRS service. I switched over from AT&T and have been unhappy. Hopefully ATTWS will bring some clue to the data side of Cingular. They're also not bluetooth or mac friendly.
anyways, yeah, i'm a geek and am not ashamed.