Only 13 root name servers

[wsvperera]

Why are there only 13 root name servers ??

 

[wsvperera]

 

[actinide]

It's a technical limitation. UDP-based DNS messages can be up to 512 bytes
long, and only 13 NS records and their corresponding A records will fit into a DNS message that size.

 

[wsvperera]

It's a technical limitation. UDP-based DNS messages can be up to 512 bytes
long, and only 13 NS records and their corresponding A records will fit into a DNS message that size.

Thats what i am looking for .. Thanks a lot

btw what is the relationship between 512 bytes & 13 Records ?

 

[actinide]

i dunno much about that machan. I just took it from

http://www.menandmice.com/knowledgehub/dnsqa/15/


refer this articles. u can find out

http://www.hill2dot0.com/wiki/index.php?title=Root_name_server

http://compnetworking.about.com/b/2008/11/19/why-there-are-only-13-dns-root-name-servers.htm

http://en.wikipedia.org/wiki/Root_name_server

 

[wsvperera]

i dunno much about that machan. I just took it from

http://www.menandmice.com/knowledgehub/dnsqa/15/


refer this articles. u can find out

http://www.hill2dot0.com/wiki/index.php?title=Root_name_server

http://compnetworking.about.com/b/2008/11/19/why-there-are-only-13-dns-root-name-servers.htm

http://en.wikipedia.org/wiki/Root_name_server

Thanks machan