The second time, the high-end pointing, Xiao Z again fight Di Enlar
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The last time did the DNS made a small z of the cerebral cortex, and it has been flattened twice by Bill. Regarding the small Z new to the company, in the trial stage, Xiao Z is not only worried about a little bit.
Fortunately, Xiao Z is a smart person. It is rapidly turning in your head, "" Let's temporarily let the little S can use it again. "
As a result, Xiao Z dropped the DNS in the TCP / IP, and then entered the MSDOS command line mode to enter the command ipconfig / flushdns, "s can now use it, it is slow to start. You can temporarily restart , I want to find a way, solve it today. "
S nod, "Okay. Today, I have to solve the problem. Otherwise, I will start it tomorrow, I don't know how long it is." Xiao Z vowed to shoot chest, "no problem."
Because Xiao Z knows, you have a buddy, making this expert.
Back to the top, Xiao Z dials the phone of the buddy, "Hello, is a?"
"Yes, small Z? How are you now? I haven't heard your news for a long time."
So, Xiao Z briefly talked about his situation, everyone is like this. Xiao Z finally returned to Zheng, so this kind of told the question that he encountered A.
After a heard, haha smiled, "Simple. You go back to the order of the DNS server, on top, outside below, then use the DNS management tool to delete the point domain of the internal DNS."
"Dominant domain? Boss, what is a point domain?" Xiao Z is invisible.
"The point domain is the root domain in DNS. You open the DNS manager, click on Forward Lookup Zones to see", A explanation.
"Why is it possible to delete a point domain?" Small Z a fogwater.
"This will start from the process of DNS inquiry. For example, we entered http://www.microsoft.com in the IE browser bar, then we saw the page. In fact, this inside DNS made a few round-back queries. First, DNS querys the address of the corresponding domain name at www.microsoft.com in the DNS server specified by the local ISP. If the local DNS is not queried, the local DNS will put the name. The request is sent to the root domain above the Internet, then determines the COM's DNS, then get the IP of Microsoft.com's DNS in the DNS of the COM, then send a query request to Microsoft.com DNS, and finally get www.microsoft. COM The host's IP address. Of course, this is said that there is no Cache exists. If there is cache exists, you can query the query of www.microsoft.com DNS servers in Cache. "
"Oh", Xiao Z is still a face, "What is the relationship with my current situation?"
"Your situation is that when you send a request, because there is a point domain in your internal DNS, it is the root domain. When you ask a non-existing DNS name, the internal DNS query is the final result. , Natural, I can't find it. "
"but?"
"But why do I put the external DNS? Why can't I put the external DNS on it, I get the DNS server from the outside to get the final result, so I can't. If you use the internal DNS as the main DNS Server, due to the internal DNS server does not have a point domain, it will query the root server, but it cannot access the outside, so it will return an error, not a seemingly correct result, so your second DNS server configuration Just a role, then calculate the opportunity to query the correct solution given by this DNS server to the DNS server on the Internet. "Oh", Xiao Z seems to understand a little bit, "Thank you Boss, I will go see, if If you have any questions, please ask you. "
"Okay, there is something that I need to help me."
Small Z is very grateful, "Thank you, boss. 88"
Put down the phone, smashed the mouse, control panel, management tool, DNS, using the domain administrator as the domain administrator, see the point domain, the mouse is gently, deleted. Little Z thought I thought, in order to ensure safety, then the DNS service was restarted.
When I came to S, Xiao Z said loudly, "s, let me try again, this time there should be no problem."
So, Xiao Z is operated in accordance with A. Then go to the MSDOS command prompt, type ipconfig / flushdns
"The problem is solved", Xiao Z feels some excited to say.
"Little Z is good, after all, IT professional. Thank you."
Xiao Z thinks that A is again tall in front of him again.
Go back to the seat, Xiao Z once once again dialed A phone, "Boss, haha, problem solved."
A is laughing at the other side of the phone, "This is natural."
"Boss, DNS is so important in Windows 2000, is it trouble what to do?"
"Yes, you can say this. In Windows 2000, DNS is all the eyes of all clients, all of the services rely on him. No DNS, Windows 2000 is a blind, a dish."
"For right, do you have any other suggestions for this?" Xiao Z then asked his questions.
"Well ... The deployment of DNS should be implemented according to different network conditions. I want to say that in a local area network, there must be at least 2 DNS servers in the Windows 2000 network. Otherwise, it will be troublesome."
"So, is it only a server that supports a Windows 2000 system?"
"No, for Bind on UNIX ..."
"Wait, what is bind?"
"Bind is a common DNS server in UNIX. For bind, at least you need to support SRV records so you can use Bind services as a Windows 2000 DNS service. Better case, it is best to support dynamic updates."
"So, can you be specific?" Xiao Z is curious.
"Of course, if you want to use bind, then at least you want to use the version of 8.2.1 Bind. He supports SRV record and dynamic update. Specific you can see RFC2052 and RFC2136"
"Oh, thank you boss. I don't bother you. 88"
Xiao Z hangs up the phone, open his notebook, and wrote a beginning on the book. DNS, Windows 2000's eyes, then draw two strokes under the eyes.
[In the future work, what kind of situation will Xiao Z will encounter? Please continue to pay attention to "Small Z Log"]
