Top Storage Space Rentals in Singapore

I would like to rent a small storage unit at some point in the next couple of weeks. I am moving out of my dorm room, after my first year at the university. It was a good year, but I hope to get better marks next year. I am not going to be able to transport my belongings back home for the summer, and would instead, like to keep them at a local storage unit, until classes resume. I am trying to find storage space in Singapore at a reasonable rate, because as a student, I do not have a lot of money to spend on such things. My parents are unwilling to help me out with it either, because they are paying for my university education, and they think that is enough of an expense for them to take on.

I can understand their sentiment, but it kind of puts me in a bind. » Read more: Top Storage Space Rentals in Singapore

Wireless Home Network Security

In order to adequately protect your wireless home network you need to have an awareness of the threats that are out there and what can be done about them. The best ways to ensure your security are by using a legitimate antivirus/anti-spyware program, an effective firewall in your router and setting up wireless encryption on your wireless router.

A wireless network introduces a new level of vulnerability to your privacy through the airwaves. On a wired network a good firewall will stop most Internet hacker attempts and your antivirus program will handle most attempts by trojan viruses to hijack your machine. But now that you’ve gone wireless your network data is being broadcast through the walls of your house and out onto the street. How do you protect yourself against neighbors who want to surf the Internet on your dime and the geeky teenager with the packet sniffing program next door?

The answer is Wireless Encryption

Before we get into wireless encryption let’s make sure your networked computers at least have the basics in terms of protection. Any computer connected to the Internet needs to have:

Antivirus Software

There are tons of scripts, viruses and spyware that can find their way to your computer through emails and downloaded programs which can muck up your operating system and compromise your privacy. A good antivirus program with updated virus definitions will do the trick. This means you have to do more than just purchase and install it. You also have to keep it updated.

Firewall Program

If you have a firewall program such as installed and you take a peak at the logs you may be shocked at the amount of attempts to gain access to your computer from unknown sources. A good firewall program will follow a set of rules to block attempts to gain access or take control over your computer. Many home network routers have a built-in SPI (Stateful Packet Inspection) firewall functionality which you will also want to take advantage of.

Anti Spyware

Spyware actually falls under a different category than viruses. While a virus is designed to do wreak havoc on your Operating System malware is more insidious and seeks to operate behind the scenes undetected. Many spyware programs exist just to collect data about you and your surfing habits and send that information back to who ever launched it as market research information. While your operating system may still function normally you will notice slowness and erratic behavior of some programs over time.

Windows Updates

Microsoft regularly publishes new vulnerabilities that have been discovered in their operating systems and patches needed to fix them. Turning your Microsoft updates to automatic will make the process of keeping your system updated almost unnoticeable except for the occasional forced reboot.

Wireless Encryption

So you’ve set up a home network using all the steps mentioned above to secure it. Right? Good. If you want to go wireless you also need to consider wireless encryption. If you don’t you might as well be installing network jacks into the curb on the street in front of your home to give passerby’s access to your network any time they want it.

The developers of the 802.11 standard were aware of this threat to consumer privacy early on so they designed a system of encrypting data that makes a wireless network just as secure as a wired network. They called it WEP or Wired Equivalent Privacy. WEP worked fine for a while but the way it was designed combined with increasing computer speeds made it easier to decode and decipher the WEP Key. Once someone in a car out on the street has your WEP key they may as well be sitting in your living room or watching over your shoulder.

As a result of the need for a newer, stronger encryption method WPA or Wi-Fi Protected Access was developed. Not only is WPA more secure it’s more user-friendly. A plain text pass phrase is all that’s needed to secure your devices. The ugly hexadecimal keys of WEP are gone. The major improvement of WPA over WEP is the patterns of encryption it uses are much more random and the key actually changes according to a time frame you can specify! WPA has a new big brother called WPA2 which uses the advanced AES method of encryption. While WEP can be cracked in a few hours WPA2 and AES has yet to be cracked.

The safeguards mentioned here are all very common and easy to come by. Excellent Internet Security Suites are now available in most electronics stores. Virtually all routers come with built-in SPI firewalls and manufacturers of network devices have made great strides to make setting up wireless encryption on your wireless network as easy as possible. By following the guidelines in this article and technology that’s available you should have no trouble securing your wireless home network.

Sensing Inside a Greenhouse Through Wireless Sensor Networks – An Emerging Technology

What is a Wireless Sensor Network?

A Wireless Sensor Network (WSN) consists of several distributed wireless sensor nodes that sense vibration, noise, and temperature. Each node has its own memory, battery, a processor and a sensor and is autonomous. These nodes are reliable, heterogeneous, scalable, fault tolerant and they require less power consumption.

In today’s world WSN are used everywhere say in traffic controlling systems, in forests to detect fire, in green houses to monitor plants, in military to monitor spy activities, in houses to monitor water and waste water, in smart houses and in many more places. WSN has become an essential technology to live with.

WSN in Greenhouse monitoring:

A greenhouse is a place where plants are grown. To set up WSN in a greenhouse the nodes are placed on leaves and crops. The base node is responsible for collecting data from all nodes and communicating with the main server or computer.

For whom?

WSN for greenhouse monitoring is required for the greenhouse owner who wants maximum cultivation of crops in any environmental conditions.

The WSN nodes sense following:

  • Temperature
  • Level of Carbon Dioxide
  • Light
  • Humidity
  • Radiation

Monitoring these environmental factors continuously helps to gather information about the crops and plants in the greenhouse. Information collected is further manipulated to manage productivity of crops. Whenever there is a change rather than expected, i.e. temperature increase or decreases suddenly, the manager is notified about the condition of affected area using text message, or call or e-mail or any other thing like buzzer by the data communication system. Manager then takes action accordingly.

WSN nodes communicate with each other and share important data that will be useful for network. Network topology used for such networks depends on total area of the greenhouse, cost and other factors.

Data stored using sensor nodes on the computer is then manipulated and meaningful interpretation is obtained using data mining, knowledge management methods.

It provides faster deployment, installment flexibility for sensors, and better sturdiness than wired networks.

Conclusion:

A Wireless Sensor Network is a measurement tool. WSN applied in greenhouse evaluates and maintains growth of crops. It saves cost and energy of wiring and connecting all nodes. It only costs to set up and maintain the network. It is very convenient to handle greenhouse in real-time more efficiently. It is better to use such technology rather than wasting money in poor estimations and labor that is typical faced during crop cultivation.

Building a Wireless ISP Network… The Opportunity

In the US, most of the people have one or more broadband access services to choose from – variations of DSL from multiple vendors and cable. That is if you’re in a metropolitan area. For more rural locations your choices are limited…..if you have any at all. Therein lies an opportunity for those willing to pursue it.

In the rural areas of the country, the selection is limited. Satellite is available to anyone (at high cost), but between dial up and T1 there are no options for many residents. Satellite suffers from latency, making it unsuitable for VoIP and some other real time Internet services. Some applications that should not be sensitive to latency (email, Web forms) will perform poorly or fail due to the increased packet time.

The traditional carriers (RBOC) and resellers face a cost issue in bringing broadband service to outlying areas. Without a concentration of users the per user cost at published rates causes either a poor or negative margin. The way cost accounting is done in larger corporations makes the business case worse for a large carrier. Cost allocations between departments for such things as floor space, personnel, and backend support end up as added costs rather than leverage opportunities. Traditional wired service will not reach outlying residents unless mandated by law, and the trend is against this happening in the near future.

So the opportunity is open for a business offering Internet broadband access service to outlying residents.

Therein lies a tremendous opportunity.

Now….just how do you go about taking advantage of this opportunity, filling a need, and building a wireless ISP network?

To assist you with working through the planning and execution of this effort here are some insights and resources you should consider:

* Business Continuity Planning – This isn’t the technical side of the business, the backup systems, redundant pathing, fail-over and restore, or alternate location stuff. Here you’re looking at subjects such as Legal Structure, Personnel Insurance, Asset Insurance, and Process and Procedure.

* Revenue and Profit – Covers where and how to create your income including installation, basic monthly service, custom access service, volume or corporate pricing, other services, business partnerships, usage based service, civic service, and tower leasing (or you could build and provide your own).

* Security Issues – There’s much to consider in this arena. Don’t overlook it.

* Bandwidth issues – The access line to your tower(s) is likely the critical factor to success. Whether it’s a T1 or a DS3 line. First off, it probably represents your single largest operational cost. Next, it determines the maximum quality of service you can provide.

Quotes you receive for bandwidth will probably be very different in terms of cost and performance guarantees, and should cover Performance Standards, Service Availability, Mean Time to Respond, Mean Time to Repair, Latency, Packet Loss, and Jitter. To help you search for the best match provider for your bandwidth requirements….I recommend utilizing the services of an unbiased independent broker by submitting a RFQ request to DS3-Bandwidth.com.

Here are some additional resources that may be of benefit to those developing a WISP….or thinking of it.StartAWisp.com

WISP Centric

There’s also an excellent forum for discussion of ideas and issues between WISP owners and potential developers at DSLReports.

Final advice…..think strategically taking care to consider the business areas highlighted above. Do make use of an independent unbiased broker for the bandwidth decision. Also, apply the resources shared here as well as any others discovered from your own research.

Wireless Home Network

Are you interested in wireless home network and how it works? Let’s first define what wireless internet is. Wireless internet access doesn’t require a wire to connect you to the Internet provider. So there is a wireless connection between you, as user, and your wireless internet provider.
There are four main ways to accomplish such a connection.

1) Mobile wireless internet
In addition to GSM voice calls, the mobile network operators offer a mobile wireless internet. Every new mobile phone has an option to connect to the Internet. Also special mobile cards for PC give you possibility to use internet wherever you go are. Mobile internet access or cellular internet providers gives you great flexibility. They have the largest coverage. In every area where there is coverage for your cellular phone, there is also coverage for internet access. The problem with this kind of wireless home network is that is not so cheap, reliable and it could be the problem with quality and speed.

2) WiFi internet service
This is a classical way to make your wireless home network. For WiFi internet service you need to use Wi-Fi providers. Lately Wi-Fi providers are having roaming agreements so you, as their client, could have high-speed internet access everywhere you go.
Telephone giants SBC and Sprint agreed to share their wireless networks – Wi-Fi hot spots. There are also similar agreements between Sprint and Wayport, AT&T and T-Mobile, AT&T and Wayport, AT&T and Verizon Wireless.

WiFi – wireless fidelity or Wireless Local area network, WLAN refers to the wireless networks which use 802.11 standards (802.11a, 802.11b, 802.11g, and 802.11n). So WiFi uses the WLAN standard for a connection between the wireless access points or broadband wireless routers and wireless clients or computers with Wireless internet card.

3) Internet access using WiMAX solution
Other name for WiMAX is wirelessMAN. The biggest difference between WiMAX and WiFi (Wireless LAN) is the range. Wireless LAN is Local Area Network. LAN is a small computer network that covers a home, an office or a building. Wireless MAN is Metropolitan Area Network. In this case your wireless home network extends on much bigger range comparing to WiFi network. The problem with WiMAX is that such providers are still very rare. WiMAX and WiFi are similar technologies. Though WiMAX has much wider range than WiFi, it uses the frequency spectrum which requires licensing. This means that WiMAX provider needs to buy a license from the government.

4) Satellite internet wireless access
The best option for your wireless home network in isolated areas, where there are no other ways of broadband internet is the Satellite internet wireless access. This is the most expensive option, both for equipment and for service.

When we talk about equipment, outside you need a satellite dish and transmit-and-receive electronics that are connected with coaxial cable to Indoor Receive Unit (IRU) and Indoor Transmit Unit (ITU) which are connected to your PC through USB connector. Satellite internet providers are the best option for isolated areas. In every inch of the world you could use Satellite internet access if you have the proper equipment. The most significant issue with satellite internet is the price. Satellite internet access is the most expensive among all.