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DNS disable recursion....
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| why?
i see this explanation on trascender..... i cut only the part for i need a explanation....... thanks...... see the image attached... | |
| jeff_j_black 2002-11-14, 8:23 am |
| Your internal servers should use DNS servers on the Internet as forwarders. This way the external DNS servers do the recursion and give answers or hints to the internal servers. This can also be a security issue. Your internal DNS servers will either get the answer from the external servers or tell the requesting client that the address could not be found. | |
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| quote:
Originally posted by jeff_j_black
Your internal servers should use DNS servers on the Internet as forwarders. This way the external DNS servers do the recursion and give answers or hints to the internal servers. This can also be a security issue. Your internal DNS servers will either get the answer from the external servers or tell the requesting client that the address could not be found.
i know this theory but i don`t understand the paragraph. | |
| jeff_j_black 2002-11-14, 2:29 pm |
| If your internal DNS server is set to use Forwarders, it will pass one query and receive one response. If it is recursive, it will send multiple queries, until it receives an answer. | |
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| quote:
Originally posted by jeff_j_black
If your internal DNS server is set to use Forwarders, it will pass one query and receive one response. If it is recursive, it will send multiple queries, until it receives an answer.
send multiple queries tu multiple external dns servers? | |
| jeff_j_black 2002-11-14, 5:00 pm |
| Recursive query send queries until it gets an answer or a referral, then it queries the referral until it gets an answer or referral, and so on. |
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