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Trick for guys with slow ADSL - from Sudaraka
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sandanuwan said:
It only speeds up the initial time taken to find the ip address of the corresponding domain name. (look up time)
If you're using a router, enter these DNS ip adresses to router dns settings. then you do not need to enter these ip numbers to individual machines that are using the router.
1. Your web browser asks the opendns DNS server what the address of www.elakiri.com is. Your computer already knows where the opendns DNS server is through its network/ip configuration.
2. The opendns DNS server does not know the address. So it asks a root server the same question. The 13 root servers have globally well-known IP addresses, and are run by a US-based company called ICANN
3. The root server replies that it does not know, but it gives the address of the server which knows about .com domains.
4. The opendns DNS server asks the .com server what the address of www.elakiri.com is.
5. The .com server replies that it does not know, but it gives the address of the server(NS1.ELAKIRI.COM/NS2.ELAKIRI.COM) which knows about .elakiri.com domain. This nameserver is at an IP address which owner of Elakiri manage, on one of his(or elakiri.com hosting company) servers.
6. The opendns DNS server asks the .elakiri.com(NS1.ELAKIRI.COM/NS2.ELAKIRI.COM) server what the address of www.elakiri.com is.
7. This NS1.ELAKIRI.COM server answers the query with the IP address of www.elakiri.com, and marks the response as “authoratitve”. This is an assertion that the answer is correct and complete. It also adds to its reply that “this data is valid for 24 hours”, so that anyone who is asking can confidently re-use the information for that time without having to issue another query.
8. The opendns DNS server finally has its answer, and can reply back to the web browser with the IP address. Crucially it marks its answer as “non-authoratitive”, so that the web browser knows it has the information indirectly.
-http://computer.howstuffworks.com/dns.htm/printable
-http://www.bytemark.co.uk/page/Live/support/tech/dnsworks
Last edited:
monson said:It only speeds up the initial time taken to find the ip address of the corresponding domain name. (look up time)
If you're using a router, enter these DNS ip adresses to router dns settings. then you do not need to enter these ip numbers to individual machines that are using the router.
1. Your web browser asks the opendns DNS server what the address of www.elakiri.com is. Your computer already knows where the opendns DNS server is through its network/ip configuration.
2. The opendns DNS server does not know the address. So it asks a root server the same question. The 13 root servers have globally well-known IP addresses, and are run by a US-based company called ICANN
3. The root server replies that it does not know, but it gives the address of the server which knows about .com domains.
4. The opendns DNS server asks the .com server what the address of www.elakiri.com is.
5. The .com server replies that it does not know, but it gives the address of the server(NS1.ELAKIRI.COM/NS2.ELAKIRI.COM) which knows about .elakiri.com domain. This nameserver is at an IP address which owner of Elakiri manage, on one of his(or elakiri.com hosting company) servers.
6. The opendns DNS server asks the .elakiri.com(NS1.ELAKIRI.COM/NS2.ELAKIRI.COM) server what the address of www.elakiri.com is.
7. This NS1.ELAKIRI.COM server answers the query with the IP address of www.elakiri.com, and marks the response as “authoratitve”. This is an assertion that the answer is correct and complete. It also adds to its reply that “this data is valid for 24 hours”, so that anyone who is asking can confidently re-use the information for that time without having to issue another query.
8. The opendns DNS server finally has its answer, and can reply back to the web browser with the IP address. Crucially it marks its answer as “non-authoratitive”, so that the web browser knows it has the information indirectly.
-http://computer.howstuffworks.com/dns.htm/printable
-http://www.bytemark.co.uk/page/Live/support/tech/dnsworks
ammatasiri... full computer course ekak kara wage eh tika read keruwama.. elama thama..
it works patta macho... elakiriiii man.. thnx wewa.... 
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