Archive for June, 2011
Network Security Review
Do you know if your home network was setup correctly? Is your personal data safe? Do your network devices have the necessary security? This are some security questions that you need to ask when you have your own network at home. Wired and wireless network connection is using different types of network security. If you do your banking online, purchase online, connect with friends, it is critical for you to review your network make sure that all possible security holes are fixed. Just think of this, a hacker that exploits the security vulnerability of your network can be on standby right now to steal some valuable information from your computer.
You can say that your network is setup correctly if you have the basic devices to make up a network and has security features at the same time.
1) Modem - Provided by your internet service provider (ISP) that is the source of your internet connection. Depending upon what device model you have, it normally comes with a security for additional protection.
2) Router - Can have both wired and wireless capability, shares that internet connection. Some firewall serves as what they call a hardware firewall and software firewall. stateful firewall (any firewall that performs stateful packet inspection (SPI) or stateful inspection) is a firewall that keeps track of the state of network connections (such as TCPstreams, UDP communication) traveling across it.
A) Wireless Security - The basic wireless security options to choose from is WEP, WPA and MAC address filtering.
Network security gives you two kinds of protection. First, protection against malicious software, like virus and spyware and protection against hackers or people that can steal some sensitive information from your computer. Your network security is only as secure as the unsecured computer in the network. Meaning if you have 3 computers and one does not have the necessary security, the whole network will still be vulnerable from hack attacks. Worm is a malicious code or software that spreads from one computer to another using the network highway.
Operating system link Microsoft Windows 7 offers some more protection like windows firewall and windows defender. This are the basic securities that you need to consider when doing your network security review. With this protection securely on all the time, you will have peace of mind doing your banking and purchasing online because you know that you are fully protected. Besides this, you should also be familiar on how to avoid manual virus and spyware removal on your computer. New York Web Design
The World of Networking!
Home networking is a service that was launched quite recently. Networking in offices has proven to be quite useful in terms of reducing cost and time spent on exchanging information. Setting up home networks was unheard of because people did not require more than one computer or sometimes couldn’t afford it either. With the drop in computer prices lately, it wouldn’t be surprising to have households with 5 computers for a family of only four. The tremendous applicability of the computer too has created more reasons to buy a computer like listening to music, watching movies, working at home or just for browsing.
Having more than one PC at home invites the idea of setting up home networks. The advantages of doing so are plenty and this has led many families to look into networking quite seriously. If all the computers at home are connected, you will not require individual Internet connections for each of them as you can make use of one connection for all the terminals. Sharing music, movies or any other file can be done in no time as all the computers will have constant access to any file on any of the computers as long as the files belong to the sharing folder. Hardware components like printers, scanners, CD burners, TV cards, etc. can be made use of from any computer as long as they are connected to the main server. Many gamers will resort to networking so they can play multiplayer games with their friends on LAN.
There are different ways to link computers at home. Your current setup may include a cable or DSL modem linked directly to one computer. To network the computers, you can connect your modem to a hub and connect both the PCs to the hub via a network card. This is relatively easy but requires an IP address for each computer. The IP address charges vary from service provider. Another option applied to home networks is to setup a network between all the computers in the household and then choose an administrator, which will require network software to be installed on it. From the administrator, you can connect your Internet connection, which can be used at all terminals.
The most common solution to home networks is to connect the modem to a router, which is then connected to the hub. Then network cables originating from the hub will then reach the terminals and provide them with Internet access. This method does not require additional IP addresses and the costs related to them. It is relatively safer as all the PCs can be protected with a firewall. However, the initial set up cost for this networking is slightly on the higher side.
Home networks are not simple enough for an amateur to set up by himself. It requires the guidance of an expert. Professionals are aware of the hardware and software components that need to be shared in the network and are better judges of which type of networking setup to implement in a given situation and requirement.
PCSoft is a Sydney based computer services company, providing support and services like networking, PC repairs and maintenance, with same day onsite support, repair and service anywhere in the Sydney area. We can send a computer technician to setup home networks or setting up office networks and onsite assistance and maintenance – Call us today.
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What Hardware is Needed For a Network?
As you’re probably already aware there is more than one type of network that can be created; but if it is a network to a computer that you want to install and need to know what special hardware you need, read on.
Firstly, if you want to get a wireless network hooked up you will need a wireless network card and a router. If you have internet access at the moment, the same cable that you currently use to feed the Internet through your computer will go into the router, and then there is another cable that will come from the router and connect to the Internet.
The router you have, should have come with software that you will need to install. The process of creating a network is not as difficult as it may seem to be; as long as you have an idea of what you are doing you shouldn’t have a problem. Once it is set up you should create a password that will only allow you and people you tell to access the wireless internet.
If it is just a simple kind of network between two computers that you are trying to make, the only thing you will need here is an Ethernet cord. However, remember that for this connection you will only be able to connect two computers and no more than that. If you would like to connect more than two computers, what you would need is an Ethernet hub as well as many Ethernet cords, as many cords as the amount of computers you are connecting. Make sure that each computer has its own cord and they are all connected to the hub, then there should be no other problems.
If you’re looking to create a network that is sharing a high speed internet connection, then you will need to connect a modem to the router via the Ethernet, then the Ethernet cords must be used to connect different computers all to the same router. However, if the computers you are using are able to support Wi-Fi then you will be able to use a wireless router, which many people find to be much better than anything else. A wireless router is often preferred because it doesn’t have you tied up at your desk. It allows you to be anywhere at home, be it in the bar area, lounge or bathroom, and from there you can use your high speed connection to surf the net from where you are.
So the answer to the question would be that it would depend on what network it is you are trying to create in order to determine what type of hardware you will need. Creating networks may not always be an easy task for someone if they don’t know what they are doing, but if you have some experience with setting up routers and networks then you shouldn’t have a problem. Just remember that it can get quite technical, so be prepared to have a hard time if you don’t understand the principles, there is plenty of advice on hand though should you need it and most hardware is supplied with instructions. CRM
How to Buy Networking Hardware
Buying networking hardware may be difficult as it requires a lot technical knowledge. Therefore before you go out shopping for your networking needs, it is important educate yourself about basic networking hardware. The following information may be of help to you.
Wireless access points are hardware devices which act as central transmitters and receivers of WLAN and radio signals. They come with built in network adapters, antennas and radio transmitters.
Wireless Ethernet bridges convert a wired Ethernet device for use on a wireless computer network. However, for larger LAN segments and richer management capability you may consider buying switches.
SFP Transceiver modules make the fiber optic network or fiber-Ethernet network easier to upgrade or maintain
Network drivers are needed to allow application software to communicate with the adapter hardware.
Print servers or printer servers can accept print jobs from the computers and send the jobs to the appropriate printers. This is a particularly useful device for large networks with huge printing requirements.
A wireless router is a router and an access point rolled into one. It allows wireless access to internet or a computer network.
Internet security devices are little boxes which act as security guards for all systems on the network. These devices generally come packed with key security features like network protection, firewall protection, virus protection, spyware protection, spam blocker, identity theft protection etc.
Digital multimedia receivers move high-definition media directly from your PC to your TV. This device is particularly useful for those in the business of production, design and animation etc.
You can choose the networking hardware you want to buy based on you needs and budget.
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Network Software
Networking is a process of connecting two or more computer together for the purpose of sharing data. For the organizations, this can be a unique benefit. Instead of putting any given data into various computers, you can put it into one computer and then have that computer share the information with rest of the computers with the help of networking software and hardware. Networking make life easier and has proved to be exceptional time saving tools.
In order to set up a network of computers in your office, you will need networking hardware such as a file server, network interface cards, Ethernet cards, local talk connectors, a switch, a router, and/or bridges. Other than that you would also require the networking software. A Networking Software is a set of primitives that define the code of action between two or more computers. The network software allows all the computers in a network to connect and communicate with one other and share the data. It includes the all information that needs to be carried in a package containing a “header” and a “trailer”. The header and trailer hold information for the receiving computer, such as the address of that computer and how the information package is coded. Information is transferred between computers as either electrical signal in electric wires, as light signals in fiber-optic cables, or as electromagnetic waves through space.
A networking operating system differs from DOS based and Windows applications. Network operating systems are primarily classified in two types of networks- client and server network and peer-to-peer network. If you are planning to set up a small yet simple networking system then a peer-to-peer network could be the best solution and for larger systems, a client/server suits well.
In case of a peer-to-peer network, you do not require a dedicated server or computer to share information between computers and can easily adapt to a Windows Operating System. Anyone with basic knowledge of networking can easily configure your existing computer to work with your peer-to-peer software. On the contrary, for client-server networking a dedicated server is a prerequisite and you would need a Network engineer to set it up. networking software plays an important role in proper functioning of any network. There are numerous networking software available these days; you should most definitely research to choose the most appropriate software for your setup, in advance.
You can find various networking software and hardware from the leading manufacturers on govgroup.com. You can compare prices and features of the networking software and choose the one that suits your needs.
The Importance of Data
A 64GB SDCX card has one simple and very important task which is to hold data and allow you to carry it around with you in a physical form. This makes your data portable, transferable and safe, and it also means that you can keep a backup of particularly important information that is small enough to hide and not connected to any network.
Many of us store information on networks and cloud servers every day without even being aware of what we’re doing. When a website or a service asks for our name and our telephone number we tend to hand it over without a second thought little realizing quite the importance of those words and numbers. In fact this information is so important and so valuable that companies keep huge databases of this information online and can even sell it to other companies. In many ways this information is a currency, and in many more ways your information facilitates currency. Thus many people will try and hack that data and information and will try and see what is hiding on the servers and the other systems – this is why you have to be so careful when deciding what you want to upload about yourself, or about your business or your family – because if it’s online it’s not necessarily safe.
On the other hand your 64GB SDCX card is perfectly safe. The information on a 64GB SDCX card is completely isolated from any server and any system and that means that if you have a breakthrough idea, or a contact list of clients, that you can keep them on your 64GB SDCX card and not worry about them falling into the wrong hands or getting out.
There are many uses for this 64GB SDCX card and fascinatingly in today’s world data, numbers and scrambles of letters can be used to represent almost any number of things. They can be pictures for instance, they can be songs, they can be genius ideas, or they can even represent how much money you have in your bank account.
And so that means that your 64GB SDCX card can safely house all those things. They can house a lifetime’s worth of memories in the form of photographs and videos, or they can harbor your life’s work in the form of a soon-to-be best selling novel or work of art. All this distilled into a much smaller amount of information in the form of a file, and then encoded onto a piece of plastic so small that you’re in danger of losing it. An 64GB SDCX card then can be a great way to keep your information safe and to take it with you on the move – and that means it can house something of potentially limitless worth. As such then it is important that you spend the time thinking of a good place to keep your data safe (such as an SD card) and that you keep back ups and more.
Hardware – A Look at the Issues
Selecting a vendor to supply your IT networking hardware often feels like trying to buy a used automobile in another country. The most difficult part may be choosing a brand from an unrecognizable set of manufacturers. There are many choices to make, and although the common reaction is to look for the cheapest price, we all know that there are many other factors which play important roles in good decision-making.
Selecting a Vendor of Hardware
The majority of large-sized vendors of hardware base their prices on not just the first purchase but on probable future purchases as well. It’s often possible to get better deals on today’s sale if the vendor can anticipate future sales and growth from your account. For this reason it’s a good idea to express your long-term goals to the vendor.
Your opt-in repair and service warranties are also important when selecting hardware for your network. Do you have a clear understanding of the services your vendor is offering in your location? For service at your location, what is the maximum distance technical support will travel? Are there extra costs associated, and do they outsource these services to another company? Phone-in technical support and warranty assurances are important, too. After making the initial purchase, what can you count on in terms of firmware, upgrades, and support. Find out in advance, and get it on paper.
Our practice has selected Dell. With good pricing, a life cycle for their product which lasts longer than we like to keep our hardware, it is a good match. Additionally, Dell offers onsite service in four hours for server and switch issues. There are volume discounts offered, so the more we purchase from them, the better our discount becomes.
After selecting a particular hardware vendor, your top decisions form several primary components
Switches - As the spinal cord of the network, this is where you’ll be plugging all the cables in. Selecting the right switch for your practice is dependent on the amount of traffic capacity you anticipate and the media used, be it fiber optic or cable. Often a network will have both copper cable and fiber optic, and in this case the switch will need to be set up to accommodate both.
Servers - Look for redundancy when selecting servers. Will a redundant machine swap power in the case of the failure of the other? Are there RAID drive arrays so the system won’t crash if the hard-drive does? How much RAM and how many processors does the server system have? More is better. Be sure to choose a backup tape drive device which is big enough to store your information and quick enough to back it all up during system down time at night. Try not to look past the physical setup of your hardware on the network. Perhaps a special housing unit or secure rack should contain the machines; this is particularly the case if you have a series of servers as many EMR system solutions do.
Devices for End-Users – Will you be using client terminals or real computers? Is the firmware able to be upgraded? If selecting thin client terminals, will they need a legacy port? For the exam rooms, will you be using an articulated arm? Our practices uses all of the above, and as a result we’ve come to an agreement about the minimum hardware configuration per device, be it desktop, laptop, server, printer or thin client. These choices have been based upon our expectations of performance. A physician must check in with the IT department before going out to buy a slick laptop computer, in order to be sure it will work well on the network. We examine the network every few months or so to keep in sync with the changes to our system and technology in general. This continual system of maintenance and improvement helps ensure optimal performance, streamlining the need for technical support.
Laptop Test
Laptops have become one of the most useful tools in today’s generation. Teachers, businessmen, librarians, and other working professionals will find laptops quite handy. Of all the people who find laptops very useful, students are probably the ones who can benefit from it the most. There is a downside though; laptops can be a bit expensive, especially for working college students. With that said, there is a growing need to get a free laptop without spending any dime. Luckily, there are various ways one can obtain laptops for free. Some methods may be harder than others, but most of these methods can help you land a decent fully functional laptop.
If you are a fresh graduate from high school, a good way to get a free laptop is to find colleges that offer free laptops to enrollees. There are colleges that use free laptops as a form of incentive for enrollment. A freshmen college student from a low income family could definitely use this kind of incentive, don’t you agree?
If you are a parent, for example, who has a son or a daughter who just graduated from high school, you can give your fresh graduate a laptop as a graduation present instead of money or anything else. You can ask the entire family to pitch in on the cost of the laptop.
Besides having a laptop in lieu of money as a graduation present, the Internet could also provide ample opportunities in getting a laptop for free. There are legit websites out there that give away free laptops from time-to-time. They hand out laptops through contests or raffles. Classified ad websites like Craigslist have a section in their website where all the free stuff is posted. Who knows, you might find a decent and fully functional laptop there?
Another good way to get a laptop for free is by participating in laptop tests. A laptop test is what companies without any extensive testing departments use to entice Internet users to test their products. In return, the individual who participated in the test will get a free laptop. You do not have to be a techie or computer savvy to participate in laptop tests. Detailed instructions will be provided to you by the computer companies so you will know what to do.
Once you have completed the laptop test thoroughly, you will then be required to fill out a form to input the results of your tests. All you have to do now is send the form via email to the computer company. They will then contact you to inform you that the laptop you tested will be yours for free. If you are willing to spend a few minutes of your time to go online, you can certainly find ways to get a laptop for free. Students who cannot afford to purchase a brand new laptop will now have a chance to get one free of charge.