Ever had one interface configured as DHCP but (due to DHCP unavailability) found out that it automagically picked an address in the 169.254.0.0/16 range?
That's APIPA (Automatic Private IP Assignment) kicking in, newer M$ and Mac OSes (dunno about Linux, never had one configured at the wrong end of the DHCP protocol:-) ) automatically pick an IP from that range (with the last 2 octets derived from the MAC address, I guess), so that if you have a number of computers networked together, know nothing about IP and of course don't have a DHCP daemon running, they will just see each other, saving Microsoft and Apple customer support a phone call.
So, provided that you have to swap files only between Win98+, 2000/XP or MacOS, just leave everything on DHCP and in a couple minutes the windows boxes happily start spamming out advertisement SMB packets and will eventually see each other.
I also keep writing tons of little shell scripts, I also recently built a little, ugly-but-reliable monitoring system which alerts me should a box go down in the middle of the night. I'm also try coding a few dependencies and hierarchical relations into it (if the nearest router goes down, don't complain about stuff past it, it'll obviously be unreachable too)
Maybe you already wrote that 2 years ago! Why don't we start making available the stuff we've already done?
Anyway, a bit of karma whoring for meeee tooo:-) Have a look at mon , a nice package directly off kernel.org, which is sooo nice that I'm actually scrapping my script in favour of it!
My home server/gateway (Firewall, DHCP, etc etc) has no video card at all. Once I installed it, I removed the AGP SiS 6326, and, apart from a couple beeps then it starts up, it works just fine. Lilo and Linux talk to COM1, the only thing I can't do is enter the BIOS, but WGAF. Went thru many kernel upgrades and reboots and never missed the monitor, also because it sits in a tiny closet where I can't hear its noise and a screen+keyboard wouldn't even fit in that place.
On the other hand, I *do* appreciate that it eats a couple Watts less, gives off less heat, and I really hope someone builds an AGP Gigabit Ethernet card someday, since that's the only free slot left:-)
The fish is alive and well, it only complains about the "bad referrer" but if u go to the front page and manually input the site's URL and translate German to English, it works like a breeze.
I guess they just blacklisted Slashdot fearing the Intermediate Slashdot Effect (Since many people dont speak German, they all go to babelfish and IT gets killed, instead of the actual destination:-) )
Recently found on a news site: A company called MegaBeam plans to offer 802.11 connectivity in some major hotel chains and highly crowded areas (airports, big railway stations) across all italy. The url is here but I'm afraid its only in Italian. They already cover the airports of Fiumicino (Roma) and Linate (Milano) and a few hotels and plan on covering the whole Starhotels chain very soon. Not terribly cheap (16 a day or 84/month) but better than nothing (and AFAIK there was absolutely nothing before this one)). Hope it helps, ciao.
I'm probably being really ignorant here, so please enlighten me:). Even if you do go for SCSI, most SCSI cards still plug into those same old PCI buses --- you're still hit with the same performance problem when shoving data through that pipe. right?
Yes. That's the reason those higher speed Scuzzy (Ultra-160, Ultra-320) and Gigabit Ethernet controllers tend to use 64bit slots.
PCI can be 33 or 66Mhz, 32 or 64 bit. What we usually have is the lowest-end (33Mhz,32bit), but variants have been around for ages (look inside a Sun Enterprise 420, for example), they just don't usually appear in normal PCs.
I know. I have an Asus A7V333/RAID with KT333 and a 266MB/s V-Link bus joining the North and South bridges. It has integrated Ata100 within the southbridge (VT8233A) and a Promise ATA133 (only recognized by 2.4.19pre7 and up) raid controller also sitting on the mobo. According to/proc/pci they are all sitting on the same PCI bus, while on a ServerWorks CNB20LE machine @work I see the dual-channel scuzzy controller sitting on PCI bus #1 (the other PCI stuff shows up on bus #0).
My point is: 1) I'm not even sure that the Southbridge's builtin EIDE controller actually sits on a different path than the rest of the PCI stuff (http://www.via.com.tw/en/apollo/KT333.jsp). 2) Even if it would, surely the add-on (although integrated in the mobo) raid controller is sharing PCI bandwith. 3) Those IDE channels alone could theoretically create 466 MB/second, without even considering any other PCI cards you might have. Even the amazing 266MB/s V-link suddenly doesn't seem so wide:-) 4) You say that this stuff was correct 1-2 years ago. KT133A motherboards are still sold today and they use PCI to link North and South bridges. Granted, Intel's 82801BA ICH2 does use a hi-speed hub and seems to have different internal "ports" for the IDE busses (they are indeed enumerated separately), so you'd have to go wayback to 440BX to get a PCI southbridge (82371AB)
Maybe we're forgetting that the "normal" (32bit, 33Mhz) PCI Bus has a total bandwidth of (32 bits = 4bytes) * (33Mhz) = 132 Mbytes/second.
Now, this is the total BUS bandwidth, with 2 EIDE channels and all the other PCI stuff you've got on the 'puter sharing this resource. Luckily, AGP cards don't have to share that same bandwidth, but, heck, how can you even hope to get close to 133Mbytes/second from your hard drive(s) on such a bus, even if they could (and they can't) actually spew out that much data?
Until they start designing southbridges with multiple PCI busses and the embedded EIDE attached to one of those, all of this is plainly pointless. Many really high-end chipsets as ServerWorks' already do this, but they cost so much that in that case you'd go for a SCSI subsystem anyway:-)
Much more welcome is the ability to overcome the 120GB limit, instead.
>>"Could they build units that grabbed inductive power from a transmitter in your glasses to overcome that problem, or maybe even allow super night vision?"
>I bet these people in the trial already have a form of "night vision" from their implant. The human eye's response to light cuts off at ~700nm; most photosensitive electronics extend well past that.
I think it's even better: Currently, night vision means light amplification or light conversion (from Infrared to visible). These electronics could possibly enable you to SEE those frequencies without converting them to the conventional "visible" spectrumo (430-700nm). Imagine SEEing Infrared and/or UV.... new colours!!!!!!!!
I know Linux is not the topic of this thread, but what I have to say is about the underlying hardware, and not the OS:
I run an always-on linux box at home (typical home gateway: masquerading firewall + DHCP + DNS + file server + SETI cruncher) and keep it in a quite tiny closet with almost no ventilation, so I wanted to run it *really* headless (no vid card at all) to also have a little thermal advantage (apart from freeing an IRQ). You know, serial console, serial LILO, getty on ttyS0. I've upgraded the mobo+CPU a couple times in the last years, and some mobos DO work without a vidcard at all (current Asus A7V333, previous Microstar K7266pro) while others (Soltek SL-75KAV) just wouldn't boot. (No, I didn't forget to set it up in the bios!). So, be sure the HARDWARE supports it!
The fact that you insist on running the wrong OS on it is a whole different story then:-)
Taking down enough DNSs... not easy!
on
The Root of All E-Mail
·
· Score: 5, Informative
I have a world map with root-servers pointed on it, looks like the area in which the A server is (Virginia, Maryland) hosts not one but six (A, C, D, G, H and J) servers, some of which (like H, run by US Army) are probably veeery well defended... I found a link to the same pic on the net: cs.ucla.edu
...or maybe just nuke the whole area and you take down 6 of them
A Linux-based PVR used by MSFT's Paul Allen firm?
on
Is MOXI Toast?
·
· Score: 3, Interesting
...... It doesn't look so bad, unless they're buying it just to hide it into a drawer. It seems that Moxi is not dead, just been bought, and their technology IS gonna hit the shelves. And Digeo is a Paul Allen (MSFT) owned company.... which won't use Micro$oft's Interactive TV software... sounds interesting!
Doctors tend to use pagers, which work on different frequencies (most of them, at least).
You can block mobile phones and not pagers. Mobile phones have little coverage outside of a city, or in some difficult environments (subway, big buildings, EM interference), while pagers work practically everywhere (maybe not underwater), so people who must be available for life-or-death matters are usually given pagers.
Maybe you need a switch.... a hub.... you've got 3 PCs and a single Ethernet port.
Or, maybe, you really want a router. This means creating a subnet and putting a static into THEIR router to allow replies to get back to you. Unlikely, but possible (lots of admin overhead for the dorm's net admin, but anyways). In that case, what about a Linux/xBSD with 2 or more Fast Ethernets? That's gonna cost you MUCH less than anything Cisco sells (and not only Cisco)
And..... with what is Microsoft proposing to Embrace/Extend/Engulf it?
I mean.... they wouldn't be saying anything like this if they had no interest in replacing it with something....um... proprietary?
Can you imagine how cool it would be?
Now Micro$oft has a copyright on MSFT (Multimedia Streaming and File Transfer protocol, incidentally it's also their Nasdaq code:-) ) and so the browser war is finally over. The Web server war, also, is finally over. Peace at last.
> I don't know how fast a "Aftermarket" FS would take off in the IT market right now
Huh?
Veritas!
Re:Don't forget mars_nwe - the NetWare emu
on
Samba Turns 10
·
· Score: 1
Non-routable??
Samba (and SMB on Windows 9x/NT/2k for the record) works just fine over routed networks... you just have problems with browsing (better put a WINS somewhere if you have many non-technical users).
Maybe you are confusing it with NetBEUI, that.... interesting.... thing that you may choose instead of TCP/IP as the layer below SMB services.
It already happened about 15 years ago or so... it was called "Vacsina" and actually cured 1701/Cascade, 1704/format and Jerusalem, if I recall correctly. It was even auto-updating: different vacsina versions would recognize each other and the most recent would overwrite the older. Sadly, a few "nasty" strains came out too....
And THIS is exactly the reason for which i'm going to turn my doorbell into an electronic click-wrap agreement device: instead of my name, I put LOTS of fine print on the plaque, and then by pressing the button (which rings the doorbell, of course), the visitor agrees to be bound by the whole thing. Which talks explicitly about privacy, cameras, beatings, firearms and whatever. Of course a thief cracking my door wouldn't "sign" it, but then he'd put a foot on my huge foot-clickable doormat.... lots o' fine print on that, too, no stupid "Welcome!".
Hack? The Palm IIIx is expandable! Just buy an expansion module and plug it in.
The hack about the M100 is cool because that model is _not_ expandable, ie it is supposed to remain w/ 2MB
I've been working on AIX boxes for 3 years and _yes_, they have an _excellent_ support, provided that you know whom to call and have the best support contracts. I had a really painful job of trying to get a problem solved until i contacted an ex-ibm exec working with us. He knew whom to call, past the technical support first-level front line (no hope to get anything solved by them, they can just escalate problems to higher levels). Since then, i've been just jumping the front line and _yes_ their support is really good:-)
Slashdot Mirror
Ever had one interface configured as DHCP but (due to DHCP unavailability) found out that it automagically picked an address in the 169.254.0.0/16 range?
:-) ) automatically pick an IP from that range (with the last 2 octets derived from the MAC address, I guess), so that if you have a number of computers networked together, know nothing about IP and of course don't have a DHCP daemon running, they will just see each other, saving Microsoft and Apple customer support a phone call.
That's APIPA (Automatic Private IP Assignment) kicking in, newer M$ and Mac OSes (dunno about Linux, never had one configured at the wrong end of the DHCP protocol
So, provided that you have to swap files only between Win98+, 2000/XP or MacOS, just leave everything on DHCP and in a couple minutes the windows boxes happily start spamming out advertisement SMB packets and will eventually see each other.
My 0.02
I also keep writing tons of little shell scripts, I also recently built a little, ugly-but-reliable monitoring system which alerts me should a box go down in the middle of the night. I'm also try coding a few dependencies and hierarchical relations into it (if the nearest router goes down, don't complain about stuff past it, it'll obviously be unreachable too)
:-)
Maybe you already wrote that 2 years ago!
Why don't we start making available the stuff we've already done?
Anyway, a bit of karma whoring for meeee tooo
Have a look at mon , a nice package directly off kernel.org, which is sooo nice that I'm actually scrapping my script in favour of it!
My home server/gateway (Firewall, DHCP, etc etc) has no video card at all. Once I installed it, I removed the AGP SiS 6326, and, apart from a couple beeps then it starts up, it works just fine. Lilo and Linux talk to COM1, the only thing I can't do is enter the BIOS, but WGAF.
:-)
Went thru many kernel upgrades and reboots and never missed the monitor, also because it sits in a tiny closet where I can't hear its noise and a screen+keyboard wouldn't even fit in that place.
On the other hand, I *do* appreciate that it eats a couple Watts less, gives off less heat, and I really hope someone builds an AGP Gigabit Ethernet card someday, since that's the only free slot left
The fish is alive and well, it only complains about the "bad referrer" but if u go to the front page and manually input the site's URL and translate German to English, it works like a breeze.
:-) )
I guess they just blacklisted Slashdot fearing the Intermediate Slashdot Effect (Since many people dont speak German, they all go to babelfish and IT gets killed, instead of the actual destination
A misspelled title and the author is NOT Taco! :-)
Recently found on a news site:
A company called MegaBeam plans to offer 802.11 connectivity in some major hotel chains and highly crowded areas (airports, big railway stations) across all italy.
The url is here but I'm afraid its only in Italian. They already cover the airports of Fiumicino (Roma) and Linate (Milano) and a few hotels and plan on covering the whole Starhotels chain very soon.
Not terribly cheap (16 a day or 84/month) but better than nothing (and AFAIK there was absolutely nothing before this one)).
Hope it helps, ciao.
I'm probably being really ignorant here, so please enlighten me :). Even if you do go for SCSI, most SCSI cards still plug into those same old PCI buses --- you're still hit with the same performance problem when shoving data through that pipe. right?
Yes. That's the reason those higher speed Scuzzy (Ultra-160, Ultra-320) and Gigabit Ethernet controllers tend to use 64bit slots.
PCI can be 33 or 66Mhz, 32 or 64 bit. What we usually have is the lowest-end (33Mhz,32bit), but variants have been around for ages (look inside a Sun Enterprise 420, for example), they just don't usually appear in normal PCs.
I know. I have an Asus A7V333/RAID with KT333 and a 266MB/s V-Link bus joining the North and South bridges. It has integrated Ata100 within the southbridge (VT8233A) and a Promise ATA133 (only recognized by 2.4.19pre7 and up) raid controller also sitting on the mobo. According to /proc/pci they are all sitting on the same PCI bus, while on a ServerWorks CNB20LE machine @work I see the dual-channel scuzzy controller sitting on PCI bus #1 (the other PCI stuff shows up on bus #0).
:-)
My point is:
1) I'm not even sure that the Southbridge's builtin EIDE controller actually sits on a different path than the rest of the PCI stuff (http://www.via.com.tw/en/apollo/KT333.jsp).
2) Even if it would, surely the add-on (although integrated in the mobo) raid controller is sharing PCI bandwith.
3) Those IDE channels alone could theoretically create 466 MB/second, without even considering any other PCI cards you might have. Even the amazing 266MB/s V-link suddenly doesn't seem so wide
4) You say that this stuff was correct 1-2 years ago. KT133A motherboards are still sold today and they use PCI to link North and South bridges. Granted, Intel's 82801BA ICH2 does use a hi-speed hub and seems to have different internal "ports" for the IDE busses (they are indeed enumerated separately), so you'd have to go wayback to 440BX to get a PCI southbridge (82371AB)
Maybe we're forgetting that the "normal" (32bit, 33Mhz) PCI Bus has a total bandwidth of (32 bits = 4bytes) * (33Mhz) = 132 Mbytes/second.
:-)
Now, this is the total BUS bandwidth, with 2 EIDE channels and all the other PCI stuff you've got on the 'puter sharing this resource. Luckily, AGP cards don't have to share that same bandwidth, but, heck, how can you even hope to get close to 133Mbytes/second from your hard drive(s) on such a bus, even if they could (and they can't) actually spew out that much data?
Until they start designing southbridges with multiple PCI busses and the embedded EIDE attached to one of those, all of this is plainly pointless. Many really high-end chipsets as ServerWorks' already do this, but they cost so much that in that case you'd go for a SCSI subsystem anyway
Much more welcome is the ability to overcome the 120GB limit, instead.
>>"Could they build units that grabbed inductive power from a transmitter in your glasses to overcome that problem, or maybe even allow super night vision?"
>I bet these people in the trial already have a form of "night vision" from their implant. The human eye's response to light cuts off at ~700nm; most photosensitive electronics extend well past that.
I think it's even better:
Currently, night vision means light amplification or light conversion (from Infrared to visible). These electronics could possibly enable you to SEE those frequencies without converting them to the conventional "visible" spectrumo (430-700nm). Imagine SEEing Infrared and/or UV.... new colours!!!!!!!!
I know Linux is not the topic of this thread, but what I have to say is about the underlying hardware, and not the OS:
:-)
I run an always-on linux box at home (typical home gateway: masquerading firewall + DHCP + DNS + file server + SETI cruncher) and keep it in a quite tiny closet with almost no ventilation, so I wanted to run it *really* headless (no vid card at all) to also have a little thermal advantage (apart from freeing an IRQ). You know, serial console, serial LILO, getty on ttyS0.
I've upgraded the mobo+CPU a couple times in the last years, and some mobos DO work without a vidcard at all (current Asus A7V333, previous Microstar K7266pro) while others (Soltek SL-75KAV) just wouldn't boot. (No, I didn't forget to set it up in the bios!).
So, be sure the HARDWARE supports it!
The fact that you insist on running the wrong OS on it is a whole different story then
I have a world map with root-servers pointed on it, looks like the area in which the A server is (Virginia, Maryland) hosts not one but six (A, C, D, G, H and J) servers, some of which (like H, run by US Army) are probably veeery well defended...
I found a link to the same pic on the net:
cs.ucla.edu
...or maybe just nuke the whole area and you take down 6 of them
......
It doesn't look so bad, unless they're buying it just to hide it into a drawer.
It seems that Moxi is not dead, just been bought, and their technology IS gonna hit the shelves.
And Digeo is a Paul Allen (MSFT) owned company.... which won't use Micro$oft's Interactive TV software... sounds interesting!
Doctors tend to use pagers, which work on different frequencies (most of them, at least).
You can block mobile phones and not pagers.
Mobile phones have little coverage outside of a city, or in some difficult environments (subway, big buildings, EM interference), while pagers work practically everywhere (maybe not underwater), so people who must be available for life-or-death matters are usually given pagers.
As the subject says. Used as a "packet assembly line", it has any sorts of packet generation facilities. libnet.sf.net
Looks like this guys really has something againt his kitchen table... luckily there were no chainsaws on show!
Let's all do our part!
Sure you really need a router?
Maybe you need a switch.... a hub.... you've got 3 PCs and a single Ethernet port.
Or, maybe, you really want a router. This means creating a subnet and putting a static into THEIR router to allow replies to get back to you. Unlikely, but possible (lots of admin overhead for the dorm's net admin, but anyways). In that case, what about a Linux/xBSD with 2 or more Fast Ethernets? That's gonna cost you MUCH less than anything Cisco sells (and not only Cisco)
And..... with what is Microsoft proposing to Embrace/Extend/Engulf it? I mean.... they wouldn't be saying anything like this if they had no interest in replacing it with something....um... proprietary? Can you imagine how cool it would be? Now Micro$oft has a copyright on MSFT (Multimedia Streaming and File Transfer protocol, incidentally it's also their Nasdaq code :-) ) and so the browser war is finally over. The Web server war, also, is finally over. Peace at last.
> I don't know how fast a "Aftermarket" FS would take off in the IT market right now
Huh?
Veritas!
Non-routable??
Samba (and SMB on Windows 9x/NT/2k for the record) works just fine over routed networks... you just have problems with browsing (better put a WINS somewhere if you have many non-technical users).
Maybe you are confusing it with NetBEUI, that.... interesting.... thing that you may choose instead of TCP/IP as the layer below SMB services.
It already happened about 15 years ago or so... it was called "Vacsina" and actually cured 1701/Cascade, 1704/format and Jerusalem, if I recall correctly. It was even auto-updating: different vacsina versions would recognize each other and the most recent would overwrite the older. Sadly, a few "nasty" strains came out too....
And THIS is exactly the reason for which i'm going to turn my doorbell into an electronic click-wrap agreement device: instead of my name, I put LOTS of fine print on the plaque, and then by pressing the button (which rings the doorbell, of course), the visitor agrees to be bound by the whole thing. Which talks explicitly about privacy, cameras, beatings, firearms and whatever. Of course a thief cracking my door wouldn't "sign" it, but then he'd put a foot on my huge foot-clickable doormat.... lots o' fine print on that, too, no stupid "Welcome!".
Hack? The Palm IIIx is expandable ! Just buy an expansion module and plug it in. The hack about the M100 is cool because that model is _not_ expandable, ie it is supposed to remain w/ 2MB
I've been working on AIX boxes for 3 years and _yes_, they have an _excellent_ support, provided that you know whom to call and have the best support contracts. I had a really painful job of trying to get a problem solved until i contacted an ex-ibm exec working with us. He knew whom to call, past the technical support first-level front line (no hope to get anything solved by them, they can just escalate problems to higher levels). Since then, i've been just jumping the front line and _yes_ their support is really good :-)