Network

Today almost all literate people use the Net . But users’ ideas about it are naive enough. They often think that the Net can understand the human language and that everything happens there in seconds: if you click ’Send a message’ an addressee will get it at once. Both ideas are wrong. The Net understands only numbers and the way of a letter or query to the end point can be very long and rather complicated. What is more, the letter can be lost or stuck on the transfer. Services of this section allow you to understand how the Net works.

Service Whoami helps a user see himself/herself in the same way as the Net do it — with an IP-address, browser and operation system. Whois allows you to learn a lot of information about domain names hosts. NSLookup addresses directly to one of the most important elements of the Net — DNS-servers that are responsible for the domain name analysis and know how to transform human words to the language of numbers or IP-addresses that is clear to computers. Utilities Ping и TraceRoute show how easy this or that domain is accessible, if you may reach it out and how it get queries. These services allow you to look behind the scenes of he Net.

What is my address? (WhoAmI)
The service tells a user his/her IP-address (or IP-address of his/her proxy server) and all information that one manages to learn about the user, including information about his/her browser and operational system.

Information about domain or IP (WhoIs)
Whois is a network protocol that allows you to address to the database of the official registrator of domain names and learn a domain name by IP-address (and vice versa to learn IP-address by a domain name) or any other information about the domain, who it belong to, who and when has registered it.

Information about an address (NSLookup)
Nslookup is a utility that allows you to address to DNS-servers (servers that set connection between a domain name and IP-address).

Is the site alive? (Ping)
Ping is a utility used to test network connection based on TCP/IP. It sends requests to the target host and register incoming responses. The time between sending a request and getting a response allows to determine a round-trip delay time and the frequency of packet loss that is to determine the workload of data link and allows to find out if there is a connection to the target host (the host may be given both by its name or its IP-address).

The route to the site (TraceRoute)
Traceroute is a utility (it is called tracert in Windows systems) used to determine data route in TCP/IP nets. Programme traceroute sends data to the target host and show information about all intermediate routers that data pass by on their way to the target host. If data weren’t delivered the programme would allow to understand where and when errors had occured.