dns
 

hi ... i have a problem with diffrent type of dns
any one can help to know the diffrence betwwen
1-caching only name sarver
2-master name server
3-slave name sarver
the state in which i use each one and the fate of request sended
by client in each one ....and if possible to combine more than one of them and why


thnx

um master dns is the 'master' dns server for that domain. the root dns servers will point to the master dns server. i.e when someone types in www.domain.com the dns query will go to the master dns server.

slave is what i think we refer to as a secondary. this is a backup to the master. at set times the secondary will update itself from the master if any changes have been made. basically if the master goes down the secondary is there to serve.

caching only name sarver? well my guess would be that it caches dns resolutions to speed up dns query time.

u'd use a master first of all then secondary. um...as i said above the fate of the master going down would casue quries to be redirected to the slave or secondary.

hope that helps?

G

sounds like you're listing questions on a test ;)

1-caching only name sarver

A name server that forwards all requests and caches it in a local database so that all future requests to already requested domains are resolved faster.

2-master name server

Authoritive name server for a domain. If you owned some-domain.com, you'd tell network solutions where your name server was and set your name server as a "master" name server for that domain. Also called a Primary Name Server.

3-slave name sarver

Doesn't have any original information on a domain, it's merely a backup for a master name server, if it goes down, the slave will answer requests for it. It can't update any information on the domain though. Also called a Secondary Name Server.

I'll let you answer the rest with the information I already provided.

thnx 4 replay ...