NeilSys Blog

Eyes can’t lie so easily as lips

• Read Full Entry

Proxy servers

In computer networks, a proxy server is a server (a computer system or an application program) that acts as an intermediary for requests from clients seeking resources from other servers. A client connects to the proxy server, requesting some service, such as a file, connection, web page, or other resource, available from a different server. The proxy server evaluates the request according to its filtering rules.

It is server which acts as a “proxy” for an application by making a request on the Internet in its stead. This way, whenever a user connects to the Internet using a client application …

• Read Full Entry

A young couple moves into a new neighborhood.

The next morning, while they are eating breakfast, the young woman sees her neighbor hang the wash outside.

That laundry is not very clean, she said, she doesn’t know how to wash correctly.

Perhaps she needs better laundry soap. Her husband looked on, but remained silent.

Every time her neighbor would hang her wash to dry, the young woman would make the same comments.

About one month later, the woman was surprised to see a nice clean wash on the line and said to her husband:

Look! She has learned how to wash correctly. I wonder who taught …

• Read Full Entry

On Night 4 college students were playing till late night and could not study for the test which was scheduled for the next day.

In the morning they thought of a plan. They made themselves look as dirty with grease and dirt. They then went up to the Dean and said that they had gone out to a wedding last night and on their return the tire of their car burst and they had to push the car all the way back and that they were in no condition to appear for the test. So the Dean said they could have …

• Read Full Entry

A computer on the Internet is identified by its IP address. In order to avoid address conflicts, IP addresses are publicly registered with the Network Information Centre (NIC). Computers on private TCP/IP LANs however do not need public addresses, since they do not need to be accessed by the public. For this reason, the NIC has reserved certain addresses that will never be registered publicly. These are known as private IP addresses, and are found in the following ranges:

From 10.0.0.0 to 10.255.255.255
From 172.16.0.0 to 172.31.255.255
From 192.168.0.0 …

• Read Full Entry