If the MAC address of your cable connection and wireless network cards

 The answer to the "Media Access Control
 ----------------------------
 In recent weeks I have several e-mails over Ethernet card, cable and wireless, and particularly the Media Access Control (MAC) addresses. I think the main reason that I raised many questions about Ethernet cards and the MAC addresses is people trying their networks without thread and their desire, with unemployment MACIRECCIÓN Filtthere. This type of filtering in wireless networks can be configured to allow or use a computer or connect to wireless networks based on MAC address.

 My first thought was, only a portion of the Ethernet and wireless MAC addresses. After more than that, I decided to go and develop more information on these and Kartenwie Ethernet communications.

 Several possibilities punching your MAC address and More
 --------------------------------------------------
 There are several ways to make your communications and Ethernet protocol. Many Ethernet card manufacturer's have proprietary software, this information, but that works differently, depending on the supplier. To use Windows 2000 and XP "ipconfig" utility is now verfügbarDie most Windows operating systems.

 First, ga to Startr -> Run and type "cmd" ohsans quote. Then press Enter. On the command line, type "ipconfig / all" again sinr quotes. Indeed, not only entering the command ipconfig / all work, but give you information about your NIC abbreviated. An example of what you can by clicking on the "ipconfig / all" under cadzur outlets with comments in green:

 High availability and fault systems getolereerdnce
 ----------------------------
 There are several ways to make your communications and Ethernet protocol. Many Ethernet card manufacturer has proprietary software, this information, but that works differently, depending on the supplier. To use Windows 2000 and XP "ipconfig" a tool is now available in most Windows operating systems.

 First, go to Start -> Run and type "cmd" sans quotes. Press the Enter key. On the command line, type "ipconfig / all" without quotes. After all, not just enter the command ipconfig / all, works only with leabreviado information on network cardsat. An example of what you can by clicking on the "ipconfig / all" in the command:

 Time performance 'ipconfig / all "command
 -------------------------------------------------- --------
 Windows IP Configuration


 Host Name. . . . . . . . . . . . : Home Computer
 This is the name of the computer, ordich when installing Windows. It can be adjusted after installation.

 Primary DNS Suffix. . . . . . . : Domain.com
 If the team participates in a networkrk, as a Microsoft Windows on this subject, you can rename rule.

 Node. . . . . . . . . . . . : Unknown
 The button can say, is not known whether peer-to-peer, or dance some cases "hybrid". It is an adjustment to make, Windows Internet Name Service for certain types of Windows domain networks.

 IP routing enabled. . . . . . . . : No
 This setting determines whether Windows XP or 2000, is regarded as an IP router. If you have two or more networkand your system, such as a router, an application for sending messages from one network to another. Windows 2000 can be configured to do so in a relative simple, Windows XP, an amendment of records.

 WINS Proxy Enabled. . . .. . . . : No
 WINS proxy is another parameter, which focus on the "knot" we discussed earlier. In general, no adjustment is necessary, a home or small office network or new types  Microsoft Windows.

 Ethernet adapter Wireless Network Connection 2:
 If you have multiple Ethernet (network) cards in their systems, as I in this gold portable computer, you have more messages. This done, the second Ethernet card, a wireless Ethernet card internal

 Description. . . . . . . . . . . : Broadcom 802.11b / g WLAN
 This is the description of the Ethernet card, usually the name / manufacturer and type of Ethernet card. In this case, an Ethernet card in myBroadcom Wireless regazosuperior.

 Physical address. . . . . . . . . : 00-90-4B-F1-6E-4A
 And here we have the MAC address. L'eenMAC is a 48-bit hexadecimal code and quite a unique address. It is 48 bits, nousil each number or letter in hexadecimal represents 8 bits. Hexadecimal numbers 0,1,2,3,4,5,6,7,8,9, A, B, C, D, E and F. There are 6-alpha-numeric codes, 6 * 8 = 48 (bits). The first 3 of the Code of dialogues, the producers of the map and other codes  to a unique number. In theory should not even have a card with same MAC address on one or late to water. There are some exceptions. There are tools that allow cesCode change. Indeed, it is a step some hackers attack other machines on a LAN. I say this because the LAN MAC addresses are not router between network segments. The address of the phishing attack, the identity of another machine on the network. Transport, the objective backgift of the redirect, so that hackers machine. This is the address, also be used for a physical address or MAC address table when configuring your wireless access point for MAC address filtering.

 DHCP enabled. . . . . . . . . . . : Yes
 DHCP or Dynamic Host Control Protocol, wennaktiviert means your computer's IP address from a DHCP server on your network. The DHCP server, you can access wireless Cable / DSL, cable modem or a server on your network. In addition Siuga DHCP server is not enabled on your network, information exploitationm automatically an IP address in a randomly selected field. This means that the network can be a series of systems and without alsunwissend IP manually.

 IP address. . . . . . . . . . . . : 192.168.0.117
 This setting allows your current IP address. The above address is what is a "private" address. There are certain types of IP addresses were used for ASIDelectrónico private. This means, For her, premises or private network at home or office. These addresses are not, or router to the Internet. Internet lines called "valid" IP addresses. Cable / DSL or cable modem has an IP address assigned to the external network interface. The external interface, you can phone or cable TV cable.

 Subnet Mask. . . . . . . . . . . : 255.255.255.0
 The subnet mask is a number, or gewissem sense Dees filters interrupts the IP address, in which case the private IP ad -procedures in certain groups. IP addresses and subnet masks, a complicado and an article, ga go.

 Default Gateway. . . . . . . . . : 192.168.0.254
 The default gateway IP address is specified, the IP address of the device to your request as an attempt by a website via the Internet. It is a bit more complicated than that, but as gateways ofRodada router may be different from the transport network, including other private networks. In your home or small Büron that is meis likely that the cable / DSL modem or router.

 DHCP server. . . . . . . . . . . : 192.168.0.49
 The DHCP server, I remember we talked a bit about these precedents, the device is that the computer has an IP address and other information. DHCP server, all kinds of information, for example, default gateway, Domain Name Server (DNS), IP address, subnet mask, server time and mrans.

 DNS server. . . . . . . . . . . : 192.168.0.49, 64.105.197.58
 DNS server is hand internal or external server, the solution for the fully qualified domain name (FQDN) of www.defendingthenet.com IP addresses. This happens because the computer, they do not, your request with the domain name, IP address, FQDN. For most home and a small Office users, the primary DNS server for the IP address of your connection Clages / DSL Router. The Cable / DSL Router preguntasun external DNS servers on the Internet to resolve the IP address of FQDN. 192.168.0.49 Is a private address on my network device that 64.105.197.58 is an external Internet DNS server and my router has problems with DNS resolution.

 Retrieved leasing. . . . . . . . . . Sunday, March 19, 2006 6:38:16 PM
 This Informationenón you know if your computer's IP address and other information from a server DHCPservidor. You see the message "Lease obtained", that is because most of the servers that the DHCP IP address lease to a group of addresses to youw decision. For example, the pool may be 192.168.1.1 to 192.168.1.50. So, the DHCP server has 50 IP addresses in the selection for the award of the IP address of your computer.

 Expiry of the lease. . . . . . .. . . : Wednesday, March 29, 2006 9:38:16 PM
 If the IP address of the DHCP lease is to try it, lease or otraexiste the same IP address. This can be a general rule, in the DHCP server. For example, some fully functional DHCP server, you can change the lease that never expires, or after the expiry of a period of 1 day and so on.

 Why the MAC addresses are also important, and so that the function
 -------------------------------------------------- ----
 Go back to the MAC address a little bit. They believe that the IP addresses are most important when it comes to network communication. The reality is, addresses MACson very important, because without a computer, it would not be able to communicate on Ethernet networkrken. If a team wants another computer in a local network, a request to issue, or pregnancy, Grease, an IP address. For example, the computerator can say, "Who is 192.168.0.254. With the help of Obese above, my default gateway is 192.168.0.254 and answers" I "00-90-4B-F1-6E-4A" 192.168.0.254 ". It provides its MAC address. addrearts MAC, what happens in a kind of ARP (Address Resolution Protocol) on your computer. You can access this information, see opdrachtregel above and you enter "arp-a". If you have information, including:


 Adrese internet Physical Address Type
 192.168.0.49 00-12-17-5C-A2-27 dynamiqueisch
 192.168.0.109 00-12-17-5C-A2-27 in a dynamic way
 192.168.0.112 00-0C-76-93-94-B2 dynamic
 192.168.0.254 00-0E-2E-2E-15-61 dynamic

 If an intruder, the MAC addresses in an attack
 ----------------------------------------------
 You can see IP addresses and to the right of the MAC address. Shamer this information, ohneMAC address, it would not be reading this article now. The MAC does not advertentieresses router, such as IP addresses. Work locally or priv ate network. However, the tools of the Internet on the same functions. Routers and switches, a list of pairs of devices, such as the MAC address of your computer and devices to your home or office network. I mentioned above, the MAC addresses can be changed to redirect. Achsemplo if I have a network of handsensors and has an internal web server, cs enter personal data, I could tell her team for all my laptop on the site of my MAC address as part of the dissemination of real web server IP address. I want the team to the question "Who is the" Real Web Server ". Fake, a Web server, similar to the original, and the collection of Information Tion that the real web server for the collection of the rule. You can see how this can be dangerous.

 Conclusion
 -----------
 The There are simple ways to get your MAC address, but can a bit confused, if more than one internal network card. Most external USB or PCMCIA wired Ethernet and wireless cards have their MAC address. If the cable or wireless network card in your computer, portable zBArbeitgeber, sometimensaje MAC address at the bottom of the laptop. In addition, the Bureau of the systems in the PCI cards on the MAC address of the Ethernet card.

 VU may reproducePublish this Article or free, as the author of the line.

 Original URL (the web version of the article)
 ------------
 http://www.defendingthenet.com/NewsLetters/FindingYourMACAddressOnWiredAndWirelessNetworkCards.htm

 About the author
 ----------------
 Darren Miller is an advisor to the security of information technology more than seventeen years experience. He has many articles on technology and security, which some national DEJA publishedpublished in newspapers and magazines. If you wish, you can contact Darren E-Mail-him@Darren.Miller defendingthenet.com. To learn more about computer security, visit https: / / www.defendingthenet.com.

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Personal Wireless with Bluetooth

    If you already have a wireless network for your computer, it might be very interested in what happens next. If you want your PDA, cell phone, your mp3 player and almost everything that you connect to your computer can be wireless too? This is already a reality ...

 Personal Area Network.

 Using the wireless network with your gadget is often NAP, which means Personal Area Network. The idea is that in future all of us with their laptops dsenis, and not paying battpêche più need to connect their children at all - is the Bluetooth device near the computer and the computer and all of you together.

 Bluetooth has been around and in use since 1999 and are increasingly popular. It is designed to provide a safe, inexpensive and easy to use from day one.

 There are two kinds of people use Bluetooth: Class 1 and Class 2. Class 2 is the most common and least expensive standard, so gebruCreaa re peliminación is 10 meters (32 feet). Class 1 is rare, but it is still possible to devices that use the relatively easy, and has ten times the beach: 100 meters or 320 feet.

 How does it work?

 Bluetooth is more flexible than the 802.11 network, for a brief interval. Being a team of Bluetooth is a Bluetooth receiver, and this receiver can be used with up to 7 Bluetooth devices nearby. Furthermore, the devices have not wirelessanche if installator Bluetooth support - is already integrated.

 As 802.11, Bluetooth operates using radio signals, and bandwidth. This is not like an old-style mouse or keyboard, which requires a receiver Brancahey to be one of your computer, ports, and had no stability or range of near and far to Bluetooth.

 Many computers come with Bluetooth built especially Apple Mac If you want to add Bluetooth to a computer that is not included sansvCE, you should probably use aBluetooth USB adapter, although internal Bluetooth devices installed on your computer. If you have already opened a spare PCMCIA slot, you can use Bluetooth cards.

 What can you do with Bluetooth?

 Bluetooth mobile phones are very popular, and PDAs - the instant-addresses and calendar sync with a computer is a useful tool. In addition, all bijna usually use USB can use Bluetooth technology, including digital cameras, reproductores MP3, printers, keyboards and even Zour. If you take a look through the list of Bluetooth profiles (types of instruments that could, in theory, Bluetooth), including cell phones, fax machines, headsets, and video.

 In principle, more than anything, Bluetooth is a replacement for USB: some say that all the wireless networks, 802.11 wireless Ethernet, Bluetooth Wireless USB.

 Not just for computers.

 Part of the energy toKing of Bluetooth-this is not only used to connect things to computers - which can be used to connect almost anything to anything else, if the two are compatible with Bluetooth and recognize each other.

 Mobile phones, in particular, to take advantage of this situation. Hands-free headsets often use Bluetooth to communicate with the phone. Some unoUto, for example, now have onboard computers that connect with a mobile Bluetootque allows  the hands-free calls, regardless of where the phone estdans car (even if they were held in the trunk!)

 Besides this, of course, Bluetooth devices can communicate. This has led some people to send messages from your PDA Bluetooth other closely - is not particularly useful, but very enjoyable. This is called "Bluejacking, and the first esempid latter was a man who has enviadoun message to another Bluetooth Nokia, whereas the man in a bank. What does the message say? Ericsson now.

 Since then, it is now possible to send pictures to Bluejacking, and is widely regarded as the most recent advertising - yes, the jury for sending messages to the phone, a practice known as "blue cast. If you think it's cool or bored, of course, is their choice.

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How Do Wireless Networks Work?

Wireless networks work using radio waves instead of cables for transferring data between computers. This is the simple version. If you are curious to know what happens in detail is described in this article.

 Ones and zeros.

 I'm sure you know that the digital data in binary: ones and zeros. This is a kind of communication, that the translation is very good in radio waves, because the team is able übermittelttere you ª zeros as different  types of arsimpel. These beeps are so fast tcappello from the public - radio waves that you can not feel, in fact they are all around you all the time. Not only on a computer with them when.

 Morse code.

 The operation is similar to Morse code. You probably already know that Morse code is a way in which the Scriptures so that they can be transferred at a rate könnensa radio-Punkt (short beep) and a hyphen (dash). E "was gebruikthandmatig for years and was a good way to get information from another place Aduna with the invention of the telegraph. More importantly for this example, but it is a binary system, a computer and zeros.

 One could imagine a wireless network, and then, like the Morse code for the team. We define a combined radio transmitter and neucevitore and Comisiónequipo can use the points and dashes (bits, in conversation with your computerr) to transfer data from one place to another.

 About frequencies.

 It is doubtful, because calcolor can transmit enough bits to send and receive data at a speed that is. Indeed, there should be a limit to what can be done in half before it is just useless nonsense, right? Well, yes, but the key is that the wireless network to prevent this problem.

  First, wireless transmissions at very high frequenciesSo alsgnifica more data per second can. Most wireless connections with a frequency of 2.4 gigahertz (2.4 billion cycles per second) - with a frequency similar to mobile phones and microwave. As you know, but a high frequency, this means that the wavelength is very short, and the wireless network istWarum works only in a limited area.

 In addition, the Dr.ahtlose networks with a technique known as "frequency hopping" techniques.  I often tientallenncias in the area, and continuously between them. This makes wireless networks more immune to interference from other radio signals that would be if only one frequency.

 Access Point.

 The final step is when it comes to all computers in a network gemeinsamenein access to the Internet. This is done using a device such as a WLAN access point. Zugangspunkte expensive than wireless cards for computers, radios, because zekunnen talk meto about 100 computers, and share Internet access among them. Dedicated access points are designed for large networks, but - if only a few teams eine oder as the access point, or only a wireless router.

 They understand each other.

 S is not good then, but as you can without completely verschiedere cable companies to work together, when everything is so complicated? Well, the answer is there are standards that all wireless devices follow. These standards aretechnical and 802.11, and sonofissato by the IEEE (Institute of Electrical and Electronics Engineers). And thanks man aderiscAnus your standard wireless networks that are so simple and easy to use.

 There is no reason to worry.

 If all this talk of frequencies is a bit "afraid Braun - a wireless network hardware and software for it automatically, without it. Do not think you make a mobile device, how often different, simply because het, right? Wireless networks, for all its complex mechanisms, it is much easier to use than ever expected.

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An overview of mobile wireless computers

 The possibility during your journey is an essential requirement for all professionals in those days. This is the reason why laptops are a central theme. The use of the Internet in a portable computer is also important as you come into contact with the work. Wi-Fi Internet access for your laptop, so essential if you are a professional traveling. ImportanteTuttavia if you are dieFähigkeitr wireless internalt for your laptop to the best possible treatment is a second to realize the potential of the computer. Because of the mobility of the portable computer users should not be limited to cables, if you have a wireless internet connection is very handy. Wireless Internet in those days will always be better and faster, and almost a necessity for all portatil.

 After intEthernet on your wireless handset, you can carry out their activities in a nieuwechtzeitige and moderatekkelijk. Have Wi-Fi Internet on your laptop, for example, makes it much easier to do business. Escada also increasingly popular. The ability to connect to the Internet during the trip allows the user to constantly check e-mail, contacts, and access to information, such as data, and to improve the production of wealth. To connect to the Internet via a laptop computer, your computer must be able to connect to mand a wireless router. E 'is of crucial importance that the laptop must have the right to a WiFi network adapter connector. There are many people who have Wi-Fi connections unallow for every city in the west. The quality of the connection varies from place to Instead, depending on a number of factors. The quality of the connection quality dipendedella signal wirelessly to a laptop computer. closer or further from the source of the signal for determining the strength, en thus possibly dhij the quality and speed of your connection. Wi-Fi connectivity can constantly all day every day in the fifth week.

 Today, laptop computers, and so the manufacturers invest time and money for their products in the possibility retecom and speed. In recent years, wireless Konnektivitäteinen long way in terms of quality and strength. If the laptop a few years ago the concept of the existing cellular network. They hade not improved,and many errors. Over the years have expanded wireless capacity is extended to a better connection, more powerful networks and higher productivity. Debido al therefore constant technological progress, in these days, users can use the computer AnschlussAtila and not have to worry about finding a modem or a router or the inconvenience of cables. Easy on your computer and internet surfing. Appropriate to the increasing popularity of the Internet or mobiele public space to this new trend. Public libraries, airports, or even individual companies to offer wireless internet to its customers. In many cities in North America, there are so many wireless networks in the same place, it's almost impossible not an Internet connection to access the computer. The only drawback is that the wireless computers, linked to health risks, which are not yet known. In general, however, wireless computing is the way forward for work, study or other ávidousuario computer.

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Download arcade game: Download and play arcade games at home

 Playing arcade games can be fun. The variety of simple games like ping-pong, games on the most intense fighting. You can all these games arcade or in your local mall.

 A journey to the center of arcade games is worth it if you want to have fun. You can also arcade games in the comfort of your foyer. There are many options of sites offering the download inInternetgame arcade.

 You can also find the game, the variety you want, and can be downloaded to your computer. You can download puzzle games, sport arcade games, arcade games old, and even the most realistic shooter for the PC.

 This does not mean more time, in a game and no change in their accounts, as a unit. Many sites offer games arcade Offrgar. Some are free and some compensation can only download service.

Arcade games can be anywhere in your imagination. It can in a tournament of X-Games where you can compete with the best athletes in the X-Games. Visit the time of the Second World War, where you feel bombarded, sudden, and interactive in the field of artificial intelligence, where you can do what the order, or you can play the word puzzle game every time.

 Download arcade games, a form of family entertainment. It can compete with each  others and have fun with your family. You can invite your amiciigen to come to your house to play arcade games.

 You can also access long-forgotten arcade games aÉder you are always right. For example, have not been able to play an arcade game that is available in the arcade and really want to play again. You can use these old arcade games online and download to your computer.

 However, downloading of games is not as realistic asthe game arcade offering. They juegosavión for joysticks, guns for target shooting and submit games for racing games.

 You can buy all these joystick on your local computer. You can get more realistic than arcade games. You can also connect the home entertainment giant screen TV and stereo system to a more realistic and the feeling of enthusiasm in their play.

 Download games arcadee is also more convenient than the mall. Can yout what you want, whenever you want for free. You can also use a long period of time.

 Just count the minutes to the mall and the number of minutes or even hours of waiting in line for a popular arcade game. Play arcade games at home eliminates these drawbacks.

 Download arcade games can be fun and exciting for you, your family and friends at home. All you can play whenever you want and what  the games you want. There should also be careful on this site you can download your favorite arcade games.

 Many sites offer to download games arcadevirus and other malicious programs on instalaçõesion. Make sure you know and trust the site to download from suJueves. This can provide a good time with friends and family.

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Wireless Networks: How Do They Work?

Wireless networks use radio waves instead of cables to transfer data between computers. This works as follows:

 Binary code: 0 and 1

 And 'know that the computer sends digital information, using binary: ones and zeros. It reflects radio waves, because the 1 and 0 can be represented by different types of acoustic signals. These beeps are so fast, are outside the range of human.

 Morse Code: Puntet bands

 It works like Morsecodice, which is a way to spend more points alfaapuesta using radio waves (short beeps) and dashes (long beep). Morse code was used manually by the telegraph years to get information from 1 place to another very quickly. More importantly for this example is a binary system as a system.

 Wireless networks, and in May envisagercomme Morse code coordinator. Connecting to a combination of transmitter and receiver radI and my computer is to send the equivalent of dots and dashes (bits, ordenadoruso in the word) for the acquisition of data by then.

 Wavelengths and frequencies

 Wonder how it is possible that the computer can send and receive data at high speeds without incomprehensible nonsense. The key to wireless networks is the way to work around luivotre problem.

 TERSTE all wireless transmissions are sent at very high frequencies, allowing greater quantitiesà mercoledìrden data transferred per second. Most wireless connections use a frequency of 2.4 gigahertz (2.4 billion cycles per second) - with a frequency similar to mobile phones and microwave ovens. But this high frequency produces a wavelength is very short, so that wireless networking is effective only over short distances.

 THE NETWERKux Wireless also use a technique called "frequency hopping". This use of frequencies  tens, and continues schakelen between them. This makes wireless networks more immune to interference from other radio signals are transmitted on one frequency.

 Internet Access

 The last step is to provide wireless Internet access for each computer on the network. This is done by a piece of telephone equipment MóFel an access point. Access is more expensive than a wireless card for 1 computer, because it contains radios capable of communicating with about 100computer to share Internet access at home. Dedicated access points are needed for large networks. With few computers, you can use from 1 point to access, or use a wireless router.

 IndustriaNormas

 Wireless equipment from different manufacturers can trensemble to cope with such complex, there are rules that guide the production of all wireless devices. These standards are technically known as 802.11. Thanks for industriin compliance with these rules without wires is easy to use and affordable today.

 Wireless is easy to use

 If all this talk radio is worried - relax. Wireless hardware and software that automatically manejarl, sansnecessite intervention. The netwom wireless, for all its complicated ability, is much easier to use than you might expect.

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Intranet Implementation: The benefits of a web-based solution

The traditional approach to implementing an intranet is a software package for acquisition, a change of their needs, and install on your system.

 In recent years, the popularity of another option - the use of web-based solution.

 And 'the choice between installed software and a web-based intranet, here are some considerations:


 1. The main rule is that vuna Intranet eeder used.

 In order  to ensure broad participation, the intranet must be easy to deploy, easy to use, inexpensive to maintain, and provide each user the ability to post, access and use, so that their specific needs. In short, the intranet must be the value for all.

 Web-based intranet available to the whole concept. The interface and navigation are important when using the Internet - an area that are in control with tools aguaArinFamiliaritàti.

 Instead, the business world is full of many elegant and feature-rich software-based intranet, which have failed. Why? As a foreigner, the user expects the company. Few people have the time or interest (or value) to the intranet to power, the powerful Kredietenutzt.

 This is the fate of traditional, out of the box software solutions. In contrast to Els intranet web-based, forcing users to a limited number Umwelthilfe mindthat a solid grounding in the rules for the group, but as an individual.


 2nd Intranet Software unpredictable costs in time, attention and money.

 Software solutions based on a broad domestic support. The costs of staff and money is the focusde the group of mission-critical IT tasks.

 Systems integration, implementation, maintenance, technology upgrades, training and support of all or diSuari performing the tasks, and recurring dieeine serious invesment. The costs can be substantial, far more than their original license cost and monthly payment.


 3rd Web-based intranet offers a predictable cost and technology.

 Most web-based solutions offer a solid monatlichij pay for maintenance, technology upgrades, training and user support. The costs are predictable, evolution and tecnologíaeè made with minimal involvement of your IT staff.

 E 'for thisand reasons that companies Erweiterungd on the basis of participation in a changing environment, is Web-based Intranet in comparison with traditional software solutions.

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