now a days what is the use of Dns server.

[JOHNSHELL08]

sir i know the working of dns server very well but i don't know that what is it use now a days .i.e. what is the use, why we use dns server.

[Nepomuk]

If I'm not totally mistaken, a DNS server maps a certain domain to an IP address. So, DNS servers are used, so that you don't have to enter an IP (like http://75.126.164.244/) every time you want to go to a website (like http://www.bytes.com/). Mind you, IP addresses can change in some cases - that's where Dynamic DNS comes in handy.

So, have I just totally misunderstood your question or is that the answer you were looking for?

Greetings,
Nepomuk

[micmast]

If I'm not totally mistaken, a DNS server maps a certain domain to an IP address. So, DNS servers are used, so that you don't have to enter an IP (like http://75.126.164.244/) every time you want to go to a website (like http://www.bytes.com/). Mind you, IP addresses can change in some cases - that's where Dynamic DNS comes in handy.

So, have I just totally misunderstood your question or is that the answer you were looking for?

Greetings,
Nepomuk

A dynamic dns is just a standard dns with a very low refresh rate, say a new dns update every 1 minute.

And I don't think DNS servers will every disappear, cause just like Nepomuk said, people will never start remembering IP addresses, let alone when IPv6 is launched.

[knychtell]

dns is just like this,
DNS- is domain naming system-it maps the ip address of a domain or computer offering services to either private or public,

you use DNS so that you wont memorize the whole ip address of a certain service provider say, 209.131.36.158 or yahoo.com

this (dns) offers a great idea in to an extent that we will only memorize the ALias of an address, that in turn will make make it easy for sus to recall.


there are some cases that your boss will talk about forward look up zone and backward look up zone, these two are the basis of dns server, In my own understanding


just like when you want to know the ip address of a certain website, for example


ping Yahoo!

you will get

reply from 209.131.36.158: bytes=32 time =213 ms TTL=51
reply from 209.131.36.158: bytes=32 time =192ms TTL=51
reply from 209.131.36.158: bytes=32 time =239 ms TTL=51
reply from 209.131.36.158: bytes=32 time =195 ms TTL=51


now if you can remember the ip address and you cant memorize words,

you can place this address to the address bar of your browser

say
209.131.36.158= then yahoo.com will come up,