Aristóteles Machado

Leiam suas mensagens antes que sejam deletadas!

2011-01-20T18:12:00.001-02:00

See this email in English, Deutsch, Français, Italiano, Español or 18 other languages.

Leia as mensagens deixadas por Aristóteles Machado antes que sejam deletadas!

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Mais gente que espera pacientemente por você:

	Guga São Paulo, Brasil		Naynay São Paulo, Brasil

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Este email é parte da entrega de uma mensagem enviada por Aristóteles Machado. Se você recebeu este email por engano, por favor apenas ignore-o. Em breve a mensagem será removida do sistema.

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Aristóteles Machado deixou uma mensagem para você...

2011-01-12T01:51:00.001-02:00

See this email in English, Deutsch, Français, Italiano, Español or 13 other languages.

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How to create a loopback interface on your Windows XP

2010-04-04T19:56:00.001-03:00

There are times that we need a network interface always active for some activities, how to test web pages or applications in the browser, hosting services on the local computer or even to share Internet services with virtual machines, such as Microsoft Virtual Server 2005 or similar, which, if you use your network interface, while disconnected, it is in state "disconnected" and without working, or you're the one person who is compelled to put the network cable into the router and its computer just to make the network card "work", this tutorial is for you.

Installing a new network adapter "Microsoft Loopback Interface"

Start the Control Panel and go to "Add New Hardware".

Click in "Next" to avance.

Waiting while looking for some new hardware on your computer, as is a virtual driver, not detected anything.

Select that you already connected the hardware, anyway, it's virtual.

You will see the list of hardware devices from your computer, but continue to the end of the list and select to add a new device that does not appear in the list.

Click to search the driver from the hardware manually, because it's otherwise, will conduct a search among the Plug and Play devices and will take a few minutes for it (maybe seconds).

Select the type of hardware, this case is a network adapter.

Choose Microsoft as the manufacturer and the adapter, select the "Microsoft Loopback Adapter" for this interface.

Click to Next, and the installation will start.

Done, you installed your virtual network adapter.

In your settings, a new network card comes up, that is always connected.

See that she does not have an associated IP address. Use what you want in the TCP/IP configurations for your application as wish.

Hide your server in NetBios Network

2010-04-03T00:46:00.001-03:00

When we talk about sharing, we are talking about sharing resources in some network, and using Windows, this is done via the NetBIOS protocol or "SMB". A major problem is that Windows by default, to enable any sharing service, the server is visible across the entire network, even if they try to protect network resources with passwords and usernames strong, something simple that few people know, and that is very useful to hide servers and computers of strategic sectors of a company, is the function of hiding it from the network.

Hiding your precious server on Windows Network

Hiding the server, it continues to offer resources to the network, but it is not listed more in the "Network Neighborhood" or "My Network Places." Putting in the address bar the exact path, you can access the resources of the server or computer normally, it just does hide the icon in the default options of the net.

Digte at the command prompt the following command:

NET CONFIG SERVER

See what happens on the image below and see how to change to hide the server:

Typing right now:

NET CONFIG SERVER /hidden:yes

Something will be displayed after the command was executed successfully. Again without typing the "/hidden:yes", check that the service of hiding the server is active.

To view your network server again, use the command:

NET CONFIG SERVER /hidden:no

Then passes to be visible on the network again.

Definitions of pinning Ethernet

2010-04-03T00:12:00.000-03:00

Few people know and find this stuff, but here's a simple explanation of how your network card works, so this way, you can create a crossover network cable or multiple cables to connect various peer-to-point without hub or switch specific.

Not to be confused pins, see the image to locate each pin:

Ethernet 10BaseT



#Pin	Signal Name	Function
1	TD+	Transmit Data (+)
2	TD-	Transmit Data (-)
3	RD+	Receive Data (+)
4	NC	Not Connected.
5	NC	Not Connected.
6	RD-	Receive Data (-)
7	NC	Not Connected..
8	NC	Not Connected..

See, if you are a simple electronic technician, you already know how to make a cable to connect multiple computers without a hub or switch (a router maybe yes, since he is responsible for forwarding packets to other networks such as the LAN to the internet).

A twisted pair cable type cross-over, you just reverse the data transmission with the pins that receive data (not reversing the polarity) and you create a useful cable for connecting computers, be they cross-over or straight (same pinout on both sides).

For those who want more adrenaline, here is the pinout for the Ethernet 1000Base T (1 Gbps).

Ethernet 1000BaseT


Pin #	Signal Name	Function
1	BI_DA+	Bi-directional +A
2	BI_DA-	Bi-directional -A
3	BI_DB+	Bi-directional +B
4	BI_DC+	Bi-directional +C
5	BI_DC-	Bi-directional -C
6	BI_DB-	Bi-directional Bi-
7	BI_DD+	Bi-directional +D
8	BI_DD-	Bi-directional -D

Here are the definitions of networks. Hope you enjoy and use this information, as I'm enjoying myself!

Source: http://www.interfacebus.com/Gigabit_Ethernet_Description.html

*This page was translated from portuguese to english by Google Translator with fast review by Aristóteles Machado.

File Management - Complete Material

2010-04-03T00:07:00.002-03:00

Last year, I created a job, which took a good grade in college, also has up on youtube I carrying the lecture (see part video to see "Managing Files with Aristotle Machado." The paper addresses the following topics: Definition of Files, Data Hierarchy, File Systems, Data Organization and Allocation of Files. UNIESP Work done at the college in 2009.

    Context of Work:
       1. Definition File
             1. What is file
             2. Types of media for writing files
                   1. Hard Drive
                   2. Flash Memory
                   3. Other types of Storage
       2. Data Hierarchy
             1. What is
             2. Partition
                   1. Creating and Manipulating Partitions
                   2. Master Boot Record (MBR)
                   3. Extensible Firmware Interface (EFI) / GUID Partition Table (GPT)
                         1. Converting a disk to GUID partition model
       3. File System
             1. What is the File System
                   1. HPFS (OS / 2 and Windows NT 3:15)
                         1. Characteristics of the HPFS
                         2. Advantages of HPFS
                         3. Disadvantages of HPFS
                   2. FAT - File Alocation Table
                         1. Advantages of FAT
                         2. Disadvantages of FAT
                   3. NTFS (WINDOWS NT WITH CORE)
                         1. The special features that NTFS was designed
                         2. POSIX
                         3. Hard Link
                         4. Advantages NTFS
                         5. Disadvantages of NTFS
                   4. exFAT (Extended Alocation File Table)
                   5. ReiserFS (linux)
                   6. EXT2, 3, 4 (linux)
                   7. HFS and HFS +
                   8. ZFS (BSD, FreeBSD, Solaris, OpenSolaris, Mac OS X, Linux)
       4. Organization of Files
             1. Organizing your files
                   1. Index
                   2. Partition tables Organized
       5. File Allocation
             1. What is
                   1. Fragmentation
             2. RAID arrays
                   1. RAID0 - Mirror
                   2. RAID1 - Stripping
                   3. RAID5 - Stripping with parity
                   4. RAID6 - Mirror, Stripping and Parity
                   5. FakeRAID
                   6. Disadvantages of RAID array
             3. Open-Source Solutions
       6. References

I'm offering the downloadable version for those who want the versions in Word and Portable Document File.

Microsoft Word Version*
PDF Version for Adobe*

*Avaliable only in portuguese.

Original Software for what?

2010-04-03T00:03:00.001-03:00

People say that buying software is something crazy, but I will say more about my opinion on software that is not original and the reasons for not using, and may even be a threat to your computer, when used.

After reading an article on the subject, some years ago on a site computer, which was a reputable computer technician, and did not recommend any of its customers using a computer with any software not legalized, despite losing many customers did not.

A software counterfeiting, you can say it was doctored by someone who has studied the area of programming reverse engineering, ie, this person will study the binary code, passing to assembler, and link important points in the generation of serial and words "pass "to circumvent the activation systems, in some cases replacing the binary codes for code verification by other binary codes, making this program work only with" that "serial coming with him, and that the serial or" original "works.

Ways are completely illegal because the software, like Photoshop, which was built by a group of over 120 programmers in a Groupware (writing all the code at the same time on a single desktop) in addition to the great effort, have patents and are sold for high prices.

For what a cracker would work so hard to beat the system of serial and activation of a program "for free"? Know, nobody gives anything for free to anyone, much less a cracker.

Major cases of theft of money in bank accounts of important people, sometimes to give up for oversights like these, the illegal downloading and installing programs, making your private security is compromised.

A program can contain several programs into one, such as viruses, scanners, remote-access software, remote control, as well as collectors of information programs that supposedly finds valuable and sends it to any destination (possibly the hacker who broke the password of a given product ).

Database access websites, is a very large facility, as a paid account at a bank at 11:59 PM, it is impossible for Internet Banking and it is totally possible.

Moreover, there are also risks that come by e-mail and instant messaging, which infect millions of machines with Microsoft Windows operating system because the users of carelessness.

Anti-virus software on many of the cases do not work, especially the free ones, as they are updated by the developers' and when they want "that if they are not the authors of viruses circulating on the Internet, but most viruses enter through failure user's own.

Do not download files like ". Com,. Scr" or. "Exe" on Windows or Mac OS X, with extensions such as. "Sh". "Dmg". "Bash".

There are viruses that come from Linux, called RootKit, which comes from the ROOT user who has full and unrestricted access to the system, making the handling system so that no anti-virus can remove it by manipulating the operating system API, so to speak.

Beware we have not only the Internet but also in the stall of CDs with software on the corner, because a cracker or anyone who offers you a software that has a high price for the price of "banana", must have something behind it . The cheap, just leaving expensive.

*automatic translated by Google Translate.

Wireless Networks

2010-04-02T23:56:00.001-03:00

After the tutorial I made, there were many questions and questions about the wireless network. Let's illustrate things.

The wireless network is nothing more than a similar network to network with cables using HUB, only without wires. There are people who can criticize me saying that this is not true, however, this is true.

The wireless network can be intercepted as well as a package that runs through HUB can be intercepted by any computer connected to the network because the hub simply serves to forward the packets to all computers on the network, and wireless network makes it by air, not targeting just the packages respectively for their fate, since scarcely knows where they are, because they are being sent by a radio frequency bands ranging from 2.4 GHz and / or 5.4 Ghz.

Various patterns, among them the common ones are:

802.11a
Works with 5.4 GHz speed of up to 54 Mbps. It was one of the standards used by fewer countries that have not allowed the use of the radio band at 5.4 GHz, and long after the 802.11be/ou of today, there are still places like the United States, which still is not allowed use components in the range of 5.47 to 5.725 GHz.

802.11b
Uses the frequency of 2.4 GHz with connection speeds of up to 11 Mbps. One of the first standards to be introduced and which was widely used early on not only for home connections, but also for Internet radio site, with operators who install antennas with amplifiers for receiving and sending special radio signal from the antenna (in a visible area) of the ISP. The major disadvantage of this pattern is that the frequency of 2.4 GHz is widely used by cordless phones, cellular phones, microwave, as well as base stations nearby can interfere and end up affecting the efficiency of the wireless network.

802.11g
With improvements, this pattern works on the same frequency, but gets up to 54 Mbps speed. The improvements were in error detection, signal loss, as well as check for mirroring the signal as interference from walls that can reflect the signal (due to some metal part), among others, best known today.

802.11n
A new standard initiated by Intel and other companies like Apple, for maximixar use of the band at 2.4 GHz and 5.4 GHz to get the maximum speed possible with multiple antennas instead of only 1 previous standards, with simultaneous connections rather than only a single connection to the theoretical speed of up to 150 Mbps. Best Access Point and / or routers in this pattern with at least 2 or 3 antennas so that there is capacity for simultaneous connections without interference from one channel and another simultaneously. Having had much time to become a standard in the market, Apple released a lot of equipment called "draft n" or "draft" 802.11n, and then, who bought equipment this season, may have difficulties in using the network with its 150 Mbps offered. The first standards offered 4 simultaneous connections reaching the incredible 600 Mbps, but it should install the wireless network card with 4 antennas, each for each separate channel, with an unnecessary waste of electricity, especially in notebooks. Who bought versions "draft", can connect to networks typically a / b / g.

Access Point
Device used to spread the wireless network. In an infrastructure wireless network in a company, he is responsible to receive the signal from another nearby AP by increasing the gain to establish a reliable link between them, keeping customers connected as if in a single network (and is a single network with one SSID and BSSID).

SSID
Identifiers of Wireless Networks Through him we can see the names of the networks in the program manager of wireless networks. There is a BSSID associated with this name, which is a form of address as a MAC address type, but only to identify if there are two or more networks with the same name.

Ad-Hoc

Contrary to what many think, you can create a network point to point as quickly as sending a file via Bluetooth to a cell to another. In Bluetooth, you check the name of another person's cell, depending on the case has to make the pairing even putting in an access code and the other. The wireless network also, you create a wireless network, branded as Ad-Hoc and puts an SSID of your choice. When you save your changes, on the other computer, just search the net, and this, if the wireless network adapters are working, will appear as if by magic. Simply enter the network, and if you have not configured any IP address or on a computer or another, wait 2 minutes at most to have Windows automatically assign a private address. By assigning this automatic address that will be similar to "169.254.3.69", you can use the "My Network places" to go through the other computer to share files (where there are shared folders and permissions in the firewall for this, which usually for safety, are not enabled by default in Windows XP for example).

Type Ad Hoc Networks - Point to Point

Infrastructure
Is the wireless network consists of routers, Access Point (AP) and other network devices. In some places in large companies, installing a wireless network throughout the building, is the same as saying: "Installing a wireless network on each floor," since the wireless signal has trouble going through places like concrete ( as the floor or ceiling) or places with metal parts.
The solution is to place an AP on each floor, and link them through a cable or backbone network with sufficient bandwidth to support all the AP with the number of users of the entire floor of the building.
Each AP can support on average 60 users connected, which may vary for more or less depending on the type purchased as well as the AP frequency for which he works. A building with 10 floors, there may be up to 600 users connected to, say, 54 Mbps, which would total a total of 31 Gbps. Absurd? Maybe not, or maybe yes, but there is also the issue of AP that support 60 users with the minimum speed, which is 1 Mbps or less, which would have 600 Mbps connection to all the infrastructure, so in this case a 1 Gbps connection between the AP of the building, it is inevitable that there be no bottlenecks in the wired network (if wired in, what would the wireless then?).

Security in Wireless
Security is a complicated issue until there are now several programs that discover passwords, such as aircrack-ng, which is even a Linux distribution which can be used in a Live CD to boot the machine just for search tasks and networks their passwords. There are several tools in this kit, wireless networks, such as, eg, an application that simulates the disconnection of the AP to the client, and how the data are trafficked through the air, as if on a hub, where all the computers on the network listen each other, the wireless network is the same, then the client reconnects to the AP, carries the authentication password with the SSID, and the latter being unprotected, aircrack-ng shows the results in hexadecimal characters.

There omidirecionais antennas and directional antennas. With the omi-directional antenna (that came with the AP or router by default), sends to all angles without having a correct direction, but she has an oval shape as a disc, and it is important to always leave the antenna AP standing of computers and satellite lines (lying) to the frequencies intersect in the air and one can listen to each other.

Practical example of a wireless network with omi-directional antenna (for all sides horizontally, but vertically flattened).

Directional antennas, make all the wifi signal strength is directed to one place, then you can place the antenna on top of your desk and target only the place where you want to receive the wireless signal, and no neighbor will have access since the signal is not spread by any party.

Klikot, social network that pays you to use

2010-03-25T23:36:00.001-03:00

Klikot is a network of media as well as Orkut, Facebook, Brazil, among others, but the main attraction of it being a division of advertising with their own users.

In Orkut, Facebook, all the value of advertising, profits are involved in the company, and nothing is shared with users, who are the ones that really make a community.

In Klikot, being an international site, they use U.S. dollars to their values, and you must have a paypal account to receive the awards. Those who earn more rewards, are high on the list of the major awards, you can make friends of these people and ask how it happened, and everyone responds that this is true, but you have to know a little about the functioning of Paypal, since it is the only source place from where they can deliver you the prizes (cash).

Please register and visit the site: http://bit.ly/9fV8MI

How to create a "@msn.com" instead of "@hotmail.com"?

2010-03-05T20:06:00.000-03:00

How to Create a Windows Live ID with the ending "@msn.com" instead of the traditional "@hotmail.com"? Simple, make your registration at this address below:

https://accountservices.passport.net/reg.srf?ns=msn.com&sl=1&lc=1033

Source: http://ask-leo.com/how_do_i_make_an_msncom_email_address_instead_of_hotmailcom.html

Graffiti of a mouse pointer

2010-01-28T22:36:00.002-02:00

See the mouse graffiti on the wall of Johannesburg, South Africa. This is geek!

From: http://johannesburgdailyphoto.blogspot.com/2009/11/marshall-street-barracks.html

How to create a program as a Service in Windows NT?

2010-01-27T16:53:00.000-02:00

In effect, you create your program as soon as service, for example, use the Windows calculator:

sc create yousrvnamehere binPath= "c:\windows\system32\calc.exe"

Note: Do not forget the space between the binPath the way, since it only understand that there is something after the space. (A strange bug by Microsoft that is in sc.exe, possibly to hinder the creation of programs and service users by users)

So you create a service for the program to follow. By default, when adding the service without adding more arguments, it is off by default, then go to "services.msc" from the start of the run and look for "yousrvnamehere" in the list and double-click, and then click Start.

Depending on the program, errors can occur, since it is running as SYSTEM, which is the main account of the system, and has some limitations for programs with graphical interface or a component. This is because the program runs on another program, which is svchost.exe, which handles the task of passing the treads correct for the secure processing services.

UHD - Ultra High Definition

2010-01-27T13:51:00.003-02:00

UHD - Ultra High Definition, these high definition cameras are made up of a new and remarkable technology used by recording studios video RED long.

We barely got used to watching videos in 1080p and the studios, this is simply crap, who makes movies, you have to think of something much greater, because you need to edit, model, and adjust images to create realistic scenarios with effects never imagined. It seems that in the next few years, the image 4Kp will be gone.

Today, we usually see a 1080p, and there are cameras, like the one above, with resolution up to 4520x2540 pixels, or nearly 4 times the current 1920x1080 we see in movies on Blu-Ray and soon on Youtube Full HD. Because the H.264 CODEC, uncompressed video that could hold almost 1.4 Gb/sec, does not reach 2 Mbps with the quality of 1080p without any distortion. So what is the format of the videos of Blu-Ray and HD videos in Youtube.

So far, there is no official release of the Youtube 1080p Full HD, currently the largest video is in 720p (1280x720p), but the official blog of Youtube, are already receiving and converting videos in 1080p (1920x1080). If the HD Youtube for some people is already slow, imagine the new version. How will broadband require the user to attend without further annoying crashes? However, it creates the unique quality of images.

Source: http://www.red.com/cameras/technology/

How you can test your bandwidth

2010-01-22T15:52:00.002-02:00

We find some good websites for you verify how you can download though your internet connection link.

1. www.speedtest.net

With flash based website, you can choice among servers from all of the globe, with better results with white servers. You can try how your ISP can download though so much away places.

2. www.rjnet.com.br/1velocimetro.php

The best without flash based component, using only JavaScript. Other best way to test your bandwidth. Avaliable only in portuguese.

3. www.testaspeedy.appspot.com

Test your bandwidth into your iPhone! It's also works in computer. Simply, faster, easy. Avaliabe only in portuguese, but, simply to understand.

4. www.testesuavelocidade.com.br

You can change among 2 options, the complete or express. Good for you test your internet connection.

5. www.numion.com/YourSpeed3/

YourSpeed offer complete statistics for download stream and upload stream.

Image by Computer. How do this work?

2010-01-15T19:17:00.003-02:00

Sometimes, we have a question, what program to use for create a 3D models? It's amazing and awesome, so i think, and i believe you've this same question, maybe you can learn more about it, and i show to you how you can inprove your knowledge in 3D models.

This car, was projected on 3D Studio MAX. This program is avaliable for Windows. It's seems the Autodesk Maya.

With a simply knowledge, you can create a lot models in 3D though the viewports. You can change the material and insert images, light, planes, and what you want. Has a lot websites though the internet with free models for you can start to learn more about.

Documentation about internal Wireless adapters for better connection

2010-01-12T14:55:00.001-02:00

Setting Advanced Properties: Dell Wireless WLAN Card User Guide

802.11h+d
Afterburner
Antenna Diversity
Band Preference
Bluetooth Collaboration
BSS Mode
Disable Upon Wired Connect
IBSS Allowed
IBSS 54g(tm) Protection Mode
IBSS Mode
AP Compatibility Mode
Locally Administered MAC Address
Location
Manage Wireless Settings
Minimum Power Consumption
PLCP Header
Power Save Mode
Radio Enable/Disable
Rate
Rate (802.11a)
Rate (802.11b/g)
Disable Bands
Fragmentation Threshold
Roaming Decision
Roam Tendency
RTS Threshold
SSID Autopromote
WMM
WZC IBSS Channel Number
WZC Managed Ethernet
XPress (TM) Technology

To set the advanced properties of your WLAN card, open the Properties window to the Advanced tab.

To view the value of a property, click the name of the property in the Property list. The property value is displayed in the Value box. To change the value, click an option in the Value list or type a new value, as appropriate (selection options are different for different properties).
The available properties and their respective settings are described below.

NOTE: Some of the properties may not be available on your model of the Dell Wireless WLAN Card.

802.11h+d

The 802.11h+d property configures the advanced radio control of the WLAN card by an associated access point. The controls are enabled when the 802.11h+d property is set to Loose 11h, Loose 11h+d, or Strict 11h. When the setting is Strict 11h, the Dell Wireless WLAN Card associates only to access points supporting IEEE 802.11h protocols when operating in regions with special restrictions on radio operation. When the setting is Loose 11h, the WLAN card does not restrict associations based on the access point IEEE 802.11h support. When the setting is Loose 11h+d, the Dell Wireless WLAN Card does not restrict associations based on the access point IEEE 802.11h or IEEE 802.11d support.

Disabled (default)

Loose 11h

Loose 11h+d

Strict 11h

Afterburner

Afterburner is a Broadcom proprietary high-performance implementation of a faster throughput added to wireless products that conform to IEEE 802.11g.

Disabled (default). Disables Afterburner.

Enabled. Enables Afterburner

Antenna Diversity

Antenna Diversity is a function included in most wireless LAN equipment that has two antennas, Main and Aux. When set to Auto, Antenna Diversity monitors the signal from each antenna and automatically switches to the one with the better signal.

Auto (default).

Aux.

Main.

Band Preference

The Band Preference property is available only on Dell Wireless WLAN Card models that have dual-band capability. Band Preference allows users to specify the IEEE 802.11 band preference while roaming . This allows the wireless client to associate with another AP based on band preference even if the signal from the currently associated AP is strong enough to sustain the association .

None (default). Roams without regard to the frequency band of the available APs.

Prefer 802.11a (5 GHz band)

Prefer 802.11g/b (2.4 GHz band)

Bluetooth Collaboration

Bluetooth Collaboration enables general purpose input/output transmit suppression protocol between the IEEE 802.11 media access control (MAC) and an external Bluetooth chip to minimize transmit interference. Bluetooth Collaboration is enabled by default.

Enable (default)

Disable

BSS Mode

BSS mode is used to to restrict the IEEE 802.11b/g band to IEEE 802.11b only mode. BSS Mode applies to networks that are configured for access points.

Default (default)

802.11b Only

Disable Upon Wired Connect

If this property is set to Enabled, whenever your computer is connected to an Ethernet port and the link state is good, the computer automatically turns off the IEEE 802.11 radio. This conserves IP address allocation, reduces security risks, resolves dual interface routing issues, and prolongs battery life.

Disabled (default)

Enabled

IBSS Allowed

This property must be set to Enabled for you to use the Dell Wireless WLAN Card Utility or Wireless Network Wizard to create or connect to an ad hoc network. Your network administrator may require this property to be set to Disabled for security reasons.

Enabled (default)

Disabled

IBSS 54g(tm) Protection Mode

A mechanism of prefixing each OFDM data frame with a request to send/clear to send (RTS/CTS) complimentary code keying (CCK) frame sequence. The duration fields of the RTS and CTS frames should allow the IEEE 802.11b node to correctly set its network allocation vector (NAV) and avoid collisions with the subsequent OFDM frames. As required for Wi-Fi®, protection mechanisms are enabled automatically whenever an IEEE 802.11b STA joins the BSS. If no IEEE 802.11b STA joins, then no protection mechanism is used and full IEEE 802.11g performance is attained.

Auto

Disabled

IBSS Mode

IBSS Mode is used to set the connection type in an ad hoc network. The following options are available:

802.11b Mode (default). Links only with IEEE 802.11b networks at the highest rate. Also, it excludes IEEE 802.11g networks.

802.11g Mode. Links only with IEEE 802.11g networks at the highest rate.

AP Compatibility Mode

Some older APs may have implementations that deviate from IEEE 802.11 standards. Setting this property to Broader Compatibility enables your Dell Wireless WLAN Card to better communicate with such APs, but at the expense of some performance loss. The default setting is Higher Performance.

Higher Performance (default)

Broader Compatibility

Locally Administered MAC Address

Locally Administered MAC Address is used to override the MAC address of the Dell Wireless WLAN Card. The Locally Administered MAC Address is a user-defined MAC address that is used in place of the MAC address originally assigned to the network adapter. Every adapter in the network must have its own unique MAC address. This locally administered address consists of a 12-digit hexadecimal number.

Value. Assigns a unique node address for the adapter.

Not Present (Default). Uses the factory-assigned node address on the adapter.

The appropriate assigned ranges and exceptions for the locally administered address include the following:

The range is 00:00:00:00:00:01 to FF:FF:FF:FF:FF:FD.
Do not use a multicast address (least significant bit of the high byte = 1).
Do not use all 0s or all F's.

Location

Users who purchased their Dell Wireless WLAN Card in the United States have USA as the default location; users who purchased their Dell Wireless WLAN Card in Japan have Japan as their default location. For all other users, the Location property is not available. See Radio Approvals for additional information.

Manage Wireless Settings

When the Manage Wireless Settings property is enabled, the Let this tool manage your wireless network settings check box on the Wireless Networks tab of the Dell Wireless WLAN Card Utility is selected.

Enabled (default)

Disabled

Minimum Power Consumption

When enabled, this property enables the wireless client to either turn off the radio or to not scan when the wireless client network is unassociated or when the computer is in the IDLE state.

Enabled (default)

Disabled

PLCP Header

PLCP Header is used to set the header type used for CCK rates. The type can be Long or Auto (short/long).

Auto (Short/Long) (default)

Long

Power Save Mode

The Power Save Mode property is used to put the wireless client computer into the IEEE 802.11 Power Save mode. When the Power Save Mode property is enabled, the radio is periodically powered down to conserve power. When the radio is in Power Save Mode, packets are stored in the AP until the radio comes on. The Fast setting allows full throughput with power savings.

Fast (default)

Enabled

Disabled

Radio Enable/Disable

When the value of this property is set to Disabled, the radio is turned off. It may be necessary at times to turn off the radio to comply with restrictions prohibiting the emission of radio signals, such as during takeoff and landing onboard a commercial aircraft. Changing the value to Enabled turns the radio back on. Certain computers may have other more convenient methods for turning the radio on and off. Refer to operating manual that came with the computer to see if such features exist.

Enabled (default)

Disabled

Rate

This property allows you to specify the rate (in Mbit/s) at which data is transmitted. The possible values are: 1, 2, 5.5, 6, 9, 11, 18, 24, 36 48, and 54 . The default is set to Use best Rate. This setting automatically adjusts the transmission rate to the optimal rate based on the capabilities of the other wireless clients and access points.

NOTE: The default value for this property is set for maximum performance. Therefore, it is not recommended for home users to change the value. Only network administrators or technicians with wireless LAN experience should attempt to make any changes.

Rate (802.11a)

This property allows you to specify the rate (in Mbit/s) at which data is transmitted for IEEE 802.11a operation. The possible values are: 6, 9, 12, 18, 24, 36, 48, and 54. The default is set to Use best Rate.

Rate (802.11b/g)

This property allows you to specify the rate (in Mbit/s) at which data is transmitted for IEEE 802.11b/g operation. The possible values are: 1, 2, 5.5, 6, 9, 11, 18, 24, 36 48, and 54 . The default is set to Use best Rate.

Disable Bands

This property is available only on Dell Wireless WLAN Card models that have dual-band capability.

None (default)

Disable 802.11g/b

Disable 802.11a

Fragmentation Threshold

The maximum size in bytes at which packets are fragmented and transmitted a piece at a time instead of all at once. Available values range from 256 to 2346. The default value is 2346.

Roaming Decision

The signal strength value that determines when the Dell Wireless WLAN Card starts scanning for other APs.

Default (default). −75 dB

Optimize Bandwidth. −65 dB

Optimize Distance. −85 dB

Roam Tendency

This property adjusts the roaming thresholds for the Dell Wireless WLAN Card.

Moderate (default). Roams to APs having a signal strength at least 20 dB greater than the current access point.

Aggressive. Roams to APs having a signal strength at least 10 dB greater than the current access point.

Conservative. Roams to APs having a signal strength at least 30 dB greater than the current access point.

RTS Threshold

If the number of frames in the data packet is at or above the RTS Threshold, a request to send/clear to send handshake is turned on before sending the data packet. The default value is 2347. The range is 0 to 2347.

SSID Autopromote

If you used the Wireless Network Wizard or the Wireless Network Connection Settings tool to connect to wireless networks, each network that you have connected to is listed under Preferred network connections on the Wireless Networks tab of the Dell Wireless WLAN Card Utility. Each time you start your computer, the computer automatically attempts to connect to the network at the top of the list. If that network is within range, the connection is made. If it is not within range, your computer attempts to connect to the next network on the list, and continues the process until it finds a network that is within range. You can move any preferred network up or down the list.
If the SSID Autopromote property is disabled, you can manually override the automatic network connection process and connect to the network of your choice, regardless of its position on the list (see "Utility Controls"). If the SSID Autopromote property is enabled, you cannot manually override the automatic connection process.

Disabled (default)

Enabled

WMM

Wi-Fi Multimedia (WMM™). The WMM property enables quality of service for audio, video, and voice applications over a wireless network by prioritizing streams of content and optimizing the way the network allocates bandwidth among competing applications.

Auto (default). With WMM set to Auto, when the wireless client connects to the AP, and the AP has Unscheduled Automatic Power Save Delivery (UAPSD) enabled, the wireless client is allowed to enter Power Save mode.

Enabled. The wireless client enters Power Save mode for WMM associations independent of whether the AP has UAPSD enabled or disabled.

Disabled. The wireless client does not have WMM association.

WZC IBSS Channel Number

The WZC IBSS Channel Number property selects the independent basic service set (IBSS) channel number on which to operate when WZC is managing your wireless networks. The default setting is 11.

WZC Managed Ethernet

If the WZC Managed Ethernet property enabled, Wireless Zero Configuration Service (WZC) is enabled to manage 802.1x connections for Ethernet devices in your computer. This setting only applies if the Dell Wireless WLAN Card Utility is enabled to manage your Dell Wireless WLAN Card.

Disabled (default)

Enabled

XPress (TM) Technology

Xpress™ Technology is a proprietary frame bursting technology that improves throughput by repackaging data so that more data can be sent in each frame. Xpress™ Technology is disabled by default.

Disabled (default). Disables Xpress™ Technology.

Enabled. Enables Xpress™ Technology.

From: http://support.dell.com/support/edocs/network/p70008/EN/props.htm

Failure of Windows Live Messenger 2009

2009-12-18T19:15:00.000-02:00

What to do to fix the 80040111 or 80040154 so common in the Windows Live Messenger 2009? If you've noticed, since August 2009 you are required to perform update your MSN communicator, but the new version has many flaws and defects, and is heavy and fat, with only 130 Mb for the Messenger, has been a failure.

After so many updates, large fatal error, the new version does not access the network, with built-in ping and stable connections working.

The new MSN makes a communication with the server's Windows Live through an external application that is more integrated in the new communicator. Microsoft, until now, no information and could not remember the causes of the problem. I, in my test lab, which is spotted on a program extension "dll" and that it needs an application called Microsoft XML Parser to be called.

You can search for this product on the Microsoft website session or download then download here and perform the installation of this software. Once installed, restart your computer and try again to log in to your Messenger.

If your Messenger does not work, as I do, abandon it and switch to third-party solutions such as Yahoo! or AOL, but your contacts from hotmail not working anymore, and I recommend that from now on, invite your friends and partners for other products like Google Talk, since it seems that the new version of MSN will be a page that will occupy almost all Monitor many forts.

There are solutions like Meebo, which you can access MSN through a web interface, which is great, but does not support audio conversations or video. http://www.meebo.com/

Here this link has information for you to try to follow and maybe get it to work again directly from Microsoft's dominance: URL

Google Wave

2009-12-18T16:00:00.000-02:00

Google Wave and doubt, what is? Simple, it's a new format for sending e-mails that only those uses is impressed, you can send messages and they remain editable with you and the person on the other side receives the update in real time, and this can be with several people at same time. Each message is called a wavelet, and each message sent on the wavelet is called a blip. There are robots that do tasks which do not even think, but it all boils down to this: Error Wavelet.

The robots are simply systems that also have access to the message you sent, but changes as it was programmed, for example, a robot emoticon, balloons and creates dezenhos to find the message any specific character as ":-)" and exchange it for a picture.

To go further, those who have access to MSN through wavelet, Twitter, and many others like robots posting, which copies the contents of the wavelet to a page or to another corner of the web, and to be worse, robots have that can transmit voice through the wavelet!

Discuss about the robots is complicated, because every day thousands of them appear on the Internet due to Google's AppEngine, which is an environment free software development platform, which offers sales and sharing of resources when they run out to developers, and for working in the same layer of Google Wave, applications have access to wavelets through specific API, and can work natively.

How about a robot instant translation when talking with your friends from other countries? Yes, with the Wave you can! I believe that soon will have thousands of applications, robots and gadgets for your Wave.

You do not have yours? How about asking? Access http://wave.google.com/ and access number, depending, it may take several months or ask a friend you invite her, as the call is faster, no more than 24 hours since you began to use the resources of the future.

See you soon!

New threats on the Internet: Rootkit

2009-12-18T11:00:00.000-02:00

After the virus for the Windows environment, where day-to-day living removing them, especially the computers of people who can not detect false e-mails received from your friends with photos out content that was downloaded from the Internet without the consent of the real origin of the same, among others as worm, spam, virus, trojan, now there are rootkits.

A Rootkit is a kind of virus that came from the Linux system. Who says that Linux has no virus? Mistaken. These are the worst systems of viruses that exist, since they are not detected by any antivirus program and any action by the User, hiding behind critical processes of the system, or simply not showing up.

His name is derived from Linux, as the Root User in a Unix environment, has the power to do whatever they want with the computer.

When the User opens a file containing malicious code, the rootkit filters the information and passes to the operating system only the code that called the User, and hides the malicious code, and so therefore, that anti-virus software performs the scanning is the same as nothing, because the rootkit has control over the system API's to call a file to be read or written.

I was watching a story, they are written to the MBR of the disk, or on track zero, and to remove it, would have to use a management system effectively partitions to remove the malicious code, but there is no solution with a zero level so low in order to remove any code in this area, since changing the MBR, implies certain times, the need to reboot the machine, and even restart the User, the rootkit may again enter your code before the machine is turned off.

As with Linux, any file can be an executable system (unlike Windows, which only extensions like. "Exe" or ". Com or." Scr "are executable) the rootkit can access image files like Gif , Jpeg, Bmp, and insert malicious code on them and make them executable, making it more difficult now to find a virus in Windows environment.

If you want to protect your family and your home against rootkit, see the site and the site www.cgi.br www.nic.br some tips on how to protect yourself against these evils through your e-mail and good practices for pipelines Internet.

Microsoft and Apple united against Google?

2009-12-18T10:00:00.000-02:00

Google is here to stay, it seems like the beast with 7 horns of the Apocalypse, known in all corners of the earth, and now it seems Apple will join with Microsoft because of the events of the Android and the supposed netbook made by Google, starting from the application Microsoft Bing for iPhone. It is a fight and is armed with all applications that Google has done, operating systems and applications for mobile devices, has now entered the fierce fight against the iPhone, and operating systems from Microsoft.

Well, back a while before Google had a partner by far with Apple, the iPhone together, where they were developed some applications such as search the Safari browser, however, after the creation of Android, a director at Google who worked Apple, he resigned the position and chose to continue with Google, and so the partnership was discontinued.

Well, say that Microsoft is gaining share with Bing, is hard to swallow because the system is not customizable, you never find what you need and the page is too heavy even to look, do not know if we cheated with Google a simple page with them and the sunny colors of the letters, but it seems that not all visual, as in Google you find what you think, you just need a little more research.

Myths say that Google would control each User on the Internet, knowing what he does, he writes, and this may even be true, I spent a look at the "Web History" and there shows the activity that I performed searches on Google were more than "5000" research you've done on Google when logged User in my routine, well, that is shocking.

We expect the combination of Apple and Microsoft to enable a healthy internet, applications for iPhone users and an operating system more practical use might be the goal of this supposed union against Google, so we hope.

How to Make a Brazilian areas with Blogger

2009-12-17T18:00:00.005-02:00

One of the questions that are puzzling many Blogger users, including myself, is to add the Brazilian domain, ie those ending with the suffix ". Br.

Unlike international services such as Godaddy, which record custom domains and offer advanced DNS, Registro.BR that registers domains, only provides the ability to record the delegations DNS, or work with the higher rank of DNS system, registering just who are the authoritative DNS servers (those who care for the domain), and you need two servers, the Master and Slave.

The Godaddy for international domains, offers a complete solution along with master and slave servers for the free domain, but also offers the feature as Registro.BR to delegate its master and slave servers in a particular way.

One of the solutions to this, is you have 2 servers, or call for solutions DNS hosting, and some of them I found, are free:

http://www.everydns.com/

EveryDNS.com offers a very quick solution for answers to areas you want to register with a limit of up to 20 custom fields for User, so free, and if you want more, they offer exclusive packages.

http://zoneedit.com/

ZoneEdit.com offers an extremely simple for you as well for free, but limited up to 5 domains, and DNS servers can take up to 72 hours to record their actions, or use tools to test your domain, as the site www.registro.br.

For Blogger, the settings are as follows:

Create a record with the alias "www" to "ghs.google.com.

If your blog is not in "www", you can enter another name for the alias, like "blog", looks like this:

"blog" value "ghs.google.com.

For all values, you must have the "ghs.google.com", since Google owns Blogger.

I hope to be of good help,

Until next time!

Mac and PC

2009-12-17T18:00:00.004-02:00

Long ago, we see the fight between the two, and hung for a long time that Apple was out of the market, with over 80% of users using the system over the windows. It happens that lately, things are quite different, and many users who need quality services, eventually opting for a more robust system, between different options for the Windows, and often see videos on youtube about the attacks of competitors. See the video below, the pinstriped would like the other PC and Mac:

I have also said that my next computer will be a mac, even a simple, because I've used a Mac and saw that the system is very robust and that, unlike Linux, there are thousands of applications available, including editors, video, sound, and many other trifles like windows in the environment that make possible the productivity of the creation of imagination. The best is that Photoshop runs natively on this system, rather than on Windows.

Some people criticize me for forgetting Linux, but Linux is also an operating system for which we should not forget, but now we see a system without standards, with few applications in the area of productivity audio visual, except for editing by The Gimp and through emulation makes it possible to run Photoshop, but I think Linux is more expensive server and network services, it is not good for the User home (like me who like to deal with things when working with unusual and tools new) and Mac made me have this freedom, as I had in Windows, after all, any tutorial site and find everything to do everything, why not add subtitles on videos? Well, in Windows, Sony Vegas is a good option. And the Mac? Final Cut. On Linux? I do not know, but one thing I know, that the Mac, Final Cut is much better than the Sony Vegas for Windows.

Once upon a time, Microsoft

2009-09-02T10:00:00.009-03:00

It seems that there is today that speculations on Microsoft about its fall. Since the release of Windows Vista, Microsoft is no longer the same. Previously, Microsoft was always in front, casting systems, while Apple was that haves across developing their systems to supercomputers. Then the market turned, and Microsoft in a strategic error, has delivered the best operating system ever made, Windows XP.

Until then to be an experience, Windows XP is nothing more than the evolution of technology NT-based server systems, now available for home users. Of course, because it NT technology, there was much resistance from users at first, many of them opting for versions based on the system even without core, depending on the MS-DOS.

Well, 10 years have passed and things changed. Today, manufacturers have only prioritize the drivers for the NT kernel, something that before was not really prioritized, and left only to large systems. With a lot of driver support for the current system, Microsoft saw that was wrong in its strategic plan, and Windows users, accustomed to this version now 'light' to our machines and extraordinarily functional.

Optimize Windows XP for both work as a server, as only one workstation, this is practically the first solution on the market that features built two solutions into one, so far.

Seeing that Apple launched their systems as the version X (ten) interfaces that provides hardware-accelerated graphics, Microsoft finally to imagine a system like Apple * (as if they had not already done so in the past, however, now the idea did not work).

Apple uses a system based on BSD, Darwin kernel, and with it, the system has stability and confidence about himself, so much so that the "Aero" on the Mac, does not exceed 10 MB of memory consumption, since it is a native system, the system depends on the features of accelerated video card, or enter the VESA mode, which is a method of emergency support for all common video cards today to accept acceleration "forced". The performance falls a little, but nothing compared to the attempt by Microsoft.

Windows Vista was redrawn to be a system similar to X from Apple. And not much tying the subject, but practically, Aero was the worst thing that ever was made, entirely dependent on the hardware is compatible, and a minimum of 64 MB of RAM is useless, because today any video card on -board has a lot more than that and not run the Aero, and always appears that generic error message from Aero to us to imagine what went wrong ...

I say more, Mac OS X, even with limited resources, low battery, low memory, and VESA, is much faster than Vista's Aero, even with the best existing video card.

To appeal to prejudice, Microsoft decided to stop sales of Windows XP (great lack of strategy, it would be better) and make users opted for machines with Windows Vista, and the worst is that Microsoft has made many partnerships with manufacturers, leaving your Vista almost "free" since installing in their new computers, virtually forcing the End User to use Vista.

Vista hurts already in sight, now comes Windows 7. Windows 7, for worse, this also comes with Aero defective, it is lighter and more practical, but nothing like Windows XP or Mac OS X. lightest The worst thing is that Mac OS X carries pure 500 Mb RAM only necessary file system kernel; see that all necessary items are loaded, whereas Windows 7, carries a maximum of 80 Mb, leaving memory for load the items needed after (I think it stupid, because the machine is very slow).

We all know that hard disk is a type of memory very slowly, see what a Mac program, it is always 2 times the size of a Windows executable, and is 10 times faster than programs for Windows, and is much lighter ( ironic eh?).

That is, well I hope that Google will soon launch its operating system, but we will in the next few years, no system to use on our computers, or Apple will win I like your new User in the next few months. (hehehe). [Windows, no more, is a thing of the past].

I think many professionals as I should think the same way. Windows is ruindows.

What happens to the Speedy Telefónica

2009-08-25T18:00:00.001-03:00

Let's say just what is happening to users that the Company does not want to talk: Poisoning of DNS. DNS you can read by clicking here to learn more about the subject, the servers have received many phone misinformation in many areas and caused the pages requested from customers, they went to other servers, servers that were not real, and the DNS Telefónica, the hardest ever.

If you use the speedy, I recommend to you, change your ISP, or at least find other DNS services safer, such as OpenDNS (in English) is a free solution to resolve domain names.

Windows XP on Mac OS X

2009-08-16T18:00:00.001-03:00

As it is possible to imagine, there are many tools for the Macintosh User feel more comfortable with using Windows in their native system, with almost same efficiency as using the Windows operating system natively. Sun Microsystems has invested much of their efforts on the xVM VirtualBox platform and its role Steamless where the User interacts normally with your computer's programs, and programs of the virtual machine and is not only arrested the window of the virtual machine. You can use as an example, Windows Live Messenger on a Mac OS X using this feature, since Microsoft does not create versions with good resources for these users, who end up migrating to the AIM platform, which is the best option, and natively integrated Mac OS X.