Useful Web Site!.

You can download basic needed software from a place. This website has more WINDOWS' and MAC'S soft wares. Click here go there!.

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What is shareware?

Shareware is software that is distributed free on a trial basis with the understanding that the user may need or want to pay for it later. Some software developers offer a shareware version of their program with a built-in expiration date (after 30 days, the user can no longer get access to the program). Other shareware (sometimes called liteware) is offered with certain capabilities disabled as an enticement to buy the complete version of the program.

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Install Tamil Font

You want to download Bamini font. Here you can download Bamini font free of cost. Click the following link.
Tamil Fonts

Microsoft Windows users:

Way 1: Open the Bamini font and click the install button.

Way 2: Copy the Bamini font and paste into font directory at Control Panel.
Sinhala Fonts

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PING

PING - Packet INternet Groper

Packet Internet or Inter-Network Groper (PING)

Ping is a network diagnostic tool used primarily to test the connectivity between two nodes or device.

To ping a destination node, an Internet Control Message Protocol (ICMP) echo request packet is sent to that node.

If a connection is available, the destination node responds with an echo reply.

Ping calculates the round-trip time of the data packet's route from its source to the destination and back, and determines whether any packets were lost during the trip.

The network ping tool was created by Mike Muuss in 1983. It contains almost one thousand lines of code and has become the standard packaged tool for various network applications and operating systems.

The ping utility works by generating an ICMP data unit that is then encapsulated into IP datagrams and transmitted over the network. After receiving the echo request, the destination node copies its payload, destroys the original packet and generates an echo reply with the same payload it received. 

The payload of the echo request packet often consists of American Standard Code for Information Interchange (ASCII) characters with variable adjustable lengths. Round-trip time is calculated by noting the local time of the source node clock when the IP datagram leaves the source node, then subtracting that time from the time at which the echo reply arrives. 

Depending on the operating system, ping utility output varies. However, almost all ping outputs display the following: 

Destination IP address 

ICMP sequence number 

Time to live (TTL) - TTL is used in IP (TCP/UDP are on top of IP) to kill off a packet if it travels too far. 

Round-trip time 

Payload size 

The number of packets lost during transmission

The ping tool displays various error messages if a round trip is not completed successfully. They include the following:

TTL Expired in Transit: Determines the maximum amount of time an IP packet may live over the network before being discarded if it has not reached its destination. To address this error, try to increase TTL value by using the ping -i switch. 

Destination Host Unreachable: Indicates that the destination node is down or is not operating on the network. It may even occur due to the non-existence of a local or remote      route for the destination host. To address this error, modify the local route table or switch the node on.

Request Timed Out: Indicates that the ping command timed out because there was no reply from the host. It indicates that no echo reply messages were received due to network traffic, failure of Address Resolution Protocol (ARP) request packet filtering or a router error. Increasing the wait time using the ping –w switch may address this problem.

Unknown Host: Indicates that the IP address or the host name does not exist in the network or that the destination host name cannot be resolved. To address this issue, verify the name and availability of the domain name system (DNS) servers

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General Public License - GNU

The GNU General Public License (GNU GPL or GPL) is the most widely used free software license, which guarantees end users (individuals, organizations, companies) the freedoms to run, study, share (copy), and modify the software.

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What is proprietary software?

Proprietary software (non-free software/closed-source software) is software that is owned by an individual or a company (usually the one that developed it). There are almost always major restrictions on its use, and its source code is almost always kept secret.

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Kind Of Extension Of Domain.

There are many different types of domain extensions you can choose for your domain name. This depends on your business nature. If you are going to register a domain name for educational site purpose then you can go for .edu extension. Below is a reference of the correct usage of certain extensions. But there is no hard and fast rule to go for any extension. Most commonly used is .com

1).com - Stands for company/commercial, but it can be used for any web site.

2).net - Stands for network and is usually used for a network of sites.

3).org - Stands for organization and is supposed to be for non-profit bodies.

4).us, .in - They are based on your country names so that you can go for country specific domain extensions.

5).biz - A newer extension on the Internet and can be used to indicate that this site is purely related to business.

6).info - Stands for information. This domain name extension can be very useful, and as a new comer it's doing well.

7).tv - Stands for Television and are more appropriate for TV channel sites.

Newer domain extensions such as .biz .info and .us etc. have more name choices available as many of the popular domains have yet to be taken and most of them are available at very nominal prices.

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