check cname record nslookup

Recently, my colleague reported that during the NSLookup test on the Intranet, I found that when I used the Intranet DNS server 192.168.1.1 for resolution, the DNS server responded very quickly and did not Any errors. However, when the DMZ server 51.

NSLookup -Qt = mx Email server IP address or domain name The domain name or IP address of the specified DNS server. Usage:Query IP addresses The simplest use of NSLookup is to query the IP address corresponding to the domain name, including the

Refer: http://www.renhaibo.com/archives/29.html     We are familiar with the ping command. It is a command for checking network conditions. When the input parameter is a domain name, it will be queried through DNS, however, only records a and cname (

http://blog.csdn.net/crazw/article/details/8986504Let's talk about some of the basic concepts of DNS:　　　A Root domainThe so-called ".", in fact, our URL www.baidu.com in the configuration should be www.baidu.com. (one last point), we usually omit

For details about dns settings in linux-Linux Enterprise Application-Linux server application, see the following. ① Introduction DNS is the Domain Name System, which can convert a Domain Name such as www.21php.com to an IP address such as 211.152.50.

  Query IP addresses NSLookupThe simplest method is to query the IP address corresponding to the domain name, including the record, MX record, and NS record cname record. Query a records:NSLookupDomain Name Query MX records:NSLookup-Q = Mx

Create a DNS server on Linux-Linux Enterprise Application-Linux server application information. For more information, see. I. Assumptions Many DNS articles start with the DNS principle. From the perspective of my use, I will provide some simple and

About the dns resolution and mx record of the email server! How do I make MX resolution records for domain names?

Netstat Command Overview:Netstat is a very useful tool for monitoring TCP/IP networks, which can display routing tables, actual TCP network connections, TCP and UDP snooping, process memory management, and status information for each network

After a domain name resolution record is added or modified, it generally takes one hour or several minutes to take effect, but it generally takes 24 hours to take effect. So how can we check whether the resolution has taken effect? In fact, it is