Below is an example check list for Linux server hardening – All ports except...
Information Technology
One of the fastest growth rates in the telecommunications industry anywhere in the world...
Olden form of phone systems involved manual exchanges which involved a great task in...
It’s helpful for data communication and IT students to understand the evolution of Data...
Data Communications is the function of transferring a digital signal from one digital device...
Suppose machine A wants to send its message packets to B which has the...
ARP or Address Resolution Protocol is used to map Internet addresses to physical addresses....
Below are couple major weaknesses of IP addresses – A machine cannot be assigned...
An IP address with all 0’s in the host id, refers to this particular...
Network and Broadcast address are derived from the general IP addresses and are used...
Internet address refers to the unique identification or address assigned to each machine in...
As shown above, the Internet consists of various physical networks (Net1 … Netn) connected...
Internetworking is the technology that makes it possible to interconnect many disparate physical networks with...
ARPANET (Advanced research project agency network) is the oldest wide area packet switched network...
ProNET variation as star topology is as shown below – The 3 hosts are...
ProNET 10 token recovery is essential to handle situations of loss of token when...
ProNET Token ring technology is an alternative to ethernet technology and it also works...
Ethernet technology started with using the costly coaxial cables. Now it is possible to...
Ethernet bridge is a fast computer with two Ethernet interfaces and a fixed program...
Ethernet Addresses refers to the unique physical/hardware address assigned or hardcoded on to the...
Ethernet data transmission enabled by TCP/IP is a best-effort delivery method. i.e the sender...
A cross section of a Ethernet cable is as shown below – Ethernet is...
WAN (Wide Area Network) connects machines over widely separated geographical locations. A WAN usually...
TCP/IP internet services and other internetworking services can be compared on the basis of...
Internetworking is the technology that makes it possible to interconnect many disparate physical networks with...
ISDN, though not popular in US, it is still one of the most popular...
One of the fastest growing telecommunication industry is obviously mobile radio communication. Below figure...
In the past, we had manual exchanges which involved a great task in switching...
Almost all of the Data communication systems across the world evolved from Telegraph systems....
Data communication is the function of transporting digital signal from one digital device to...
Here is a simple light weight HTTP analyzer written in PHP. I wrote this...
If you are not one of the people who have had the bad experience...
Parallel execution has been one of the core techniques of programming languages that enables...
Software Project Size is of great importance since it determines the level of management...
Software Engineering is and will be the backbone and driving force behind the technological...
Design patterns in general helps you to implement standardized and efficient solutions to software...
