It might be worse than that. 802.11a/b/g uses CSMA/CA as well as RTS/CTS, which would increase the overheads at the Media Access Control Layer as compared to the commonly known Ethernet.
When Client1 transmits to the AP, nobody can transmit. If Client2 requests to use the spectrum for transmission by issuing a RTS, it might corrupt Client1 transmission, and Client1 has to retransmit.
When the AP "relays" Client1 wireless frames to Client2, similar contention at the shared spectrum would happen. The actual available bandwidth is really much lower.
If you're using TCP (assuming!) the ACKs from Client2 back to Client1 will reduce the bandwidth even further.
Disclaimer: I might be wrong since I haven't been in touch with WiFi stuff for ages.
Just for verifying that the ISO download with BitTorrent is the real deal, would somebody please share the MD5 hash of the ISO downloaded from MSDN, TechNet?
Usually malware like viruses or trojans need to be "autorun" upon every reboot. Hence, it might be a good idea to look through the various processes being started up automatically by Windows.
You may use the tool Autoruns / Autorunsc for this purpose. If you're running Autorunsc.exe (command line version) with the -a, remember to run it with the the -v (verify digital signatures) and -w (hide Microsoft entries) flags. That will keep your screen simpler.
Some keygens query Windows for certain unique system identifiers (e.g. MAC address, C: Volume Serial Number) which are used to generate the key. Hence, the key generated by the keygen that ran the VM or Sandbox would only be valid for the application installed in that operating environment.
The use of UDP trackers is a great way to relieve the load on popular tracker servers, because they are bogged down by the large number of stateful TCP connections. Btw, The Pirate Bay supports UDP tracking.
From Symantec's description, the W32.Gammima.AG "worm" does not seem to be a worm but more like a virus. A quick check reveals that a worm is,
A computer worm is a self-replicating computer program. It uses a network to send copies of itself to other nodes (computer terminals on the network) and it may do so without any user intervention.
Then from Symantec's description,
The worm then copies itself to all drives from C through Z as the following file:
[DRIVE LETTER]:\ntdelect.com
It also creates the following file so that it executes whenever the drive is accessed:
[DRIVE LETTER]:\autorun.inf
It doesn't appear to be replicating through the network. Or have I misunderstood it?
The ones I've seen don't get hot, but then again they don't generate much light either.
I saw a couple of high output LED light setups and all came with a big heat sink. If I had remembered correctly, each LED is 1W and there were an array of 4x4 LEDs. When the lamp is in operation for some time, its heat sink gets really hot. You won't burn your hand instantly but you sure can't touch it for long.
Strange thing to me is that the amount of (wasted) heat energy is huge as compared to the amount of light emitted; yet these LEDs lamps are considered energy efficient.
Oh, there'll also be heat emitted by the power adapter as it converts AC from your wall socket to DC.
Why should a router provide wireless access? Well, it can be useful at times. Not all, but to some users, this is useful. Why should a router come with QoS? Again, its not always useful to everyone.
If you look at the typical NAT device available in the market, you'll find that it has evolved into a multifunctional device. Essentially, a router is a server. If it could support new functionalities that are useful to the user, I don't see why not.
I can't say for you, but I'm a techie and I'd like to save electricity. If I could run my webserver on a low-power Internet gateway if it had USB ports or had more flash memory, that would really be good.
incorporates 4 MB of flash memory and 16 MB of RAM.
The problem I have with my WRT54G hardware version 4 is the lack of storage space. It has 4MB of flash memory for the system files as well as for storing my photos and webpages. 4MB of flash is clearly insufficient.
To make matters worse, there are no USB ports available for connecting external USB storage devices as secondary storage. Argh!
Then I saw this Slashdot article. I thought, "this could be it!" To my disappointment, this is just as (in-)capable as my current box. Sigh.
I'm not sure how you found your WRT54G lacking in CPU power because on my WRT54G v4, I had actually underclocked it to 183MHz and yet it worked just as well.
I run BitTorrent actively on two separate PCs, and at the same time, we have VoIP and we play delay-sensitive online games.
I did some crucial settings though... like setting the correct upstream and downstream capacities, reducing the TCP and UDP timeouts, and using HFSC as the packet scheduling algorithm (some have reported to try HTB if HFSC fails).
I remember seeing an article on the bbc comparing what students in China were doing for Maths and what students in the UK were doing for Maths- the china exams looked a lot harder to me. I guess that's going off topic though. Here is the article:
A glance at the two questions reveals how much more advanced is the maths teaching in China, where children learn the subject up to the age of 18, the society says.
On a more serious note, they shouldn't have elevated their monitor. Generally, the top of computer monitors should be at the eye-level of the user. From the picture, it doesn't seem so. This would cause more strain on the user's neck as he/she needs to look up more than looking down.
The way our neck bones are structured, makes looking up more strenuous than looking down. Hence, it is more comfortable to look downwards than upwards.
Also if you are an admin in windows xp, just run "at 12:05/interactive cmd.exe" at 12:05 there will be a cmd promt that pops open Thanks to an AC reply, I got to know that this would not work in Vista.
Slashdot Mirror
It might be worse than that. 802.11a/b/g uses CSMA/CA as well as RTS/CTS, which would increase the overheads at the Media Access Control Layer as compared to the commonly known Ethernet.
When Client1 transmits to the AP, nobody can transmit. If Client2 requests to use the spectrum for transmission by issuing a RTS, it might corrupt Client1 transmission, and Client1 has to retransmit.
When the AP "relays" Client1 wireless frames to Client2, similar contention at the shared spectrum would happen. The actual available bandwidth is really much lower.
If you're using TCP (assuming!) the ACKs from Client2 back to Client1 will reduce the bandwidth even further.
Disclaimer: I might be wrong since I haven't been in touch with WiFi stuff for ages.
Good thing I'm using Internet Explorer!
Oh wait...
This has got to be the weakest defense example posted here.
Why censor your expression? Just let it out.
FUCK!
I found the hashes online but not from MSDN:
File Name: en_windows_7_ultimate_rc_x86_dvd_349010.iso
Date Posted (UTC): 4/30/2009 6:00:41 AM
SHA1: 7D1F486CA569EFFFFB719CFB48355BB7BF499712
ISO/CRC: E8A1C394
File Name: en_windows_7_ultimate_rc_x64_dvd_347803.iso
Date Posted (UTC): 4/30/2009 6:00:41 AM
SHA1: FC867FE1AB2E0A9796F9E4D155B44EA6998F4874
ISO/CRC: 58FB2BE0
Since I have no access to MSDN, can someone please verify if the SHA1 hashes are indeed correct? If you have MSDN account, enter here.
Just for verifying that the ISO download with BitTorrent is the real deal, would somebody please share the MD5 hash of the ISO downloaded from MSDN, TechNet?
Usually malware like viruses or trojans need to be "autorun" upon every reboot. Hence, it might be a good idea to look through the various processes being started up automatically by Windows.
You may use the tool Autoruns / Autorunsc for this purpose. If you're running Autorunsc.exe (command line version) with the -a, remember to run it with the the -v (verify digital signatures) and -w (hide Microsoft entries) flags. That will keep your screen simpler.
With all the interference at 2.4GHz or possibly even 5GHz, a better solution would be to rely on light waves.
Ok seriously, go with 802.11a or 802.11n operating in the at 5.0GHz frequency band.
Some keygens query Windows for certain unique system identifiers (e.g. MAC address, C: Volume Serial Number) which are used to generate the key. Hence, the key generated by the keygen that ran the VM or Sandbox would only be valid for the application installed in that operating environment.
Do you know the actual usage rate? Red Flag Linux isn't gaining that much users as claimed.
Instead of using nc and pv to test the network throughput between a server and a client, try iperf.
Instead of FreeNAS, I've tried . I managed to configure an iSCSI target with DRBD as the datastore for my VMware ESX 3.5 server.
OpenFiler is neat and easy to use. Check it out too.
As much as I like uTorrent, I don't really think it can be considered as "FTW" because it doesn't support UDP trackers.
The use of UDP trackers is a great way to relieve the load on popular tracker servers, because they are bogged down by the large number of stateful TCP connections. Btw, The Pirate Bay supports UDP tracking.
Here's video on Opera Mini features. They talked about the caching feature.
1. Create a few GMail accounts
2. Upload the stuff there
3. Keep the login usernames and passwords in the time capsule
4. ???
5. Profit!!!
Then from Symantec's description,
It doesn't appear to be replicating through the network. Or have I misunderstood it?
Can someone please drop MythBusters a mail?
I saw a couple of high output LED light setups and all came with a big heat sink. If I had remembered correctly, each LED is 1W and there were an array of 4x4 LEDs. When the lamp is in operation for some time, its heat sink gets really hot. You won't burn your hand instantly but you sure can't touch it for long.
Strange thing to me is that the amount of (wasted) heat energy is huge as compared to the amount of light emitted; yet these LEDs lamps are considered energy efficient.
Oh, there'll also be heat emitted by the power adapter as it converts AC from your wall socket to DC.
I'm not sure if Bluetooth tranmissions are allowed on a plane.
Why should a router provide wireless access? Well, it can be useful at times. Not all, but to some users, this is useful. Why should a router come with QoS? Again, its not always useful to everyone.
If you look at the typical NAT device available in the market, you'll find that it has evolved into a multifunctional device. Essentially, a router is a server. If it could support new functionalities that are useful to the user, I don't see why not.
I can't say for you, but I'm a techie and I'd like to save electricity. If I could run my webserver on a low-power Internet gateway if it had USB ports or had more flash memory, that would really be good.
The problem I have with my WRT54G hardware version 4 is the lack of storage space. It has 4MB of flash memory for the system files as well as for storing my photos and webpages. 4MB of flash is clearly insufficient.
To make matters worse, there are no USB ports available for connecting external USB storage devices as secondary storage. Argh!
Then I saw this Slashdot article. I thought, "this could be it!" To my disappointment, this is just as (in-)capable as my current box. Sigh.
There's are two good contenders though... Asus WL-500G and Asus WL-500G Deluxe.
I'm not sure how you found your WRT54G lacking in CPU power because on my WRT54G v4, I had actually underclocked it to 183MHz and yet it worked just as well.
I run BitTorrent actively on two separate PCs, and at the same time, we have VoIP and we play delay-sensitive online games.
I did some crucial settings though... like setting the correct upstream and downstream capacities, reducing the TCP and UDP timeouts, and using HFSC as the packet scheduling algorithm (some have reported to try HTB if HFSC fails).
On a more serious note, they shouldn't have elevated their monitor. Generally, the top of computer monitors should be at the eye-level of the user. From the picture, it doesn't seem so. This would cause more strain on the user's neck as he/she needs to look up more than looking down.
The way our neck bones are structured, makes looking up more strenuous than looking down. Hence, it is more comfortable to look downwards than upwards.