LinkSys is a very popular brand of home routers manufactured by Cisco. These may be wireless routers, DSL routers, and cable routers.
LinkSys routers are fairly simple to setup, even for inexperienced users. LinkSys Router Setup
Physical Setup of a LinkSys Router:
Even though the different models of LinkSys routers may differ, the general design for setup is very similar for all of them. Attach the antennas to the router (for wireless routers). Plug the Ethernet cable from your...
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Most DNS clients cache the results of name resolution requests. This means that the DNS clients will temporarily store the website names that you have been visiting lately. This process speeds up name resolution if multiple lookups are done to the same address, such as is common when browsing the web. Hence, if you visit Yahoo.com second time, the DNS client will already have the name mapped and hence will retrieve the mapping quickly.
Sometimes a bad DNS entry will be cached and you will...
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The purpose of a DNS server is to enable people and applications to lookup records in DNS tables. Most DNS servers are now private, meaning that they are configured to only provide service to the people and organizations who own and maintain them.
A few domain name servers on the Internet provide DNS resolutions for anyone who requests it of them. These are known as "Public DNS Servers."
Most public DNS servers are public on purpose. A few public DNS servers are public only...
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The OSI Reference Model is founded on a suggestion developed by the International Organization for Standardization (ISO). The model is known as ISO OSI (Open Systems Interconnection) Reference Model because it relates with connecting open systems – that is, systems that are open for communication with other systems.
OSI Model is a set of protocols that try to identify and homogenize the data communication practices. The OSI Model has the support of most computer and network vendors...
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SCADA is an acronym that stands for Supervisory Control and Data Acquisition. SCADA refers to a system that collects data from various sensors at a factory, plant or in other remote locations and then sends this data to a central computer which then manages and controls the data.
SCADA is a term that is used broadly to portray control and management solutions in a wide range of industries. Some of the industries where SCADA is used are Water Management Systems, Electric Power, Traffic...
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The easiest way to find your DNS servers is by using the `nslookup` tool.
Start nslookup Set your search type to NS -- this tells nslookup to search for nameservers Finally, enter in the domain name for which you would like to find the nameservers
Here are some example searches for the most popular lookups: Finding the Lincsat DNS Servers
$ nslookup
> set type=ns
> lincsat.com
Server: 66.37.143.12
Address: 66.37.143.12#53
Non-authoritative answer:
lincsat.com...
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Reverse DNS is the process of using DNS to translate IP addresses to hostnames.
Reverse DNS is the opposite of forward DNS, which is used to translate hostnames to IP addresses.
Internet names are the names which we use to refer to hosts on the Internet, such as www.tech-faq.com and www.freebsd.org.
IP addresses are the numbers which Internet routers use to move traffic across the Internet, such as 216.17.138.115 and 216.136.204.117. Reverse DNS...
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Despite what he may have said, Al Gore did not invent the Internet. The Internet was invented in the United States during the late 1950s to the 1970s by a group of researchers and scientists at the newly formed Advanced Research Projects Agency (ARPA) after the former Soviet Union launched Sputnik. Realizing that the United States had suffered a great technological blow by allowing the USSR to hold the first successful satellite launch, ARPA set out to create a brand new technology unlike...
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If you have purchased a LinkSys product, it is important to check regularly if your product has a new firmware update. Firmware updates are quite common in computer peripherals and devices and in many cases must be updated in order to run properly. However, before you upgrade LinkSys firmware, it is important to understand just what firmware is and why it should be updated once new versions are available. What is Firmware?
Firmware is a type of computer program that is included in many...
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SNMP is the Simple Network Management Protocol.
The SNMP protocol is used by network management systems to communicate with network elements.
For this to work, the network element must be equipped with an SNMP agent.
Most professional-grade network hardware comes with an SNMP agent built in. These agents must be enabled and configured to communicate with the network management system.
Operating systems, such as Unix and Windows, can also be configured with SNMP...
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