check cname with 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.

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

  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

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.

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

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

"The main content of this blog post" Introduction to bind server (including Introduction to Client Tools Dig) Configuring forward parsing DNS servers Configure Reverse resolution DNS server Configuring a secondary DNS server and

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

In Linux, it provides a widely used BIND server, which is the most common server software for building DNS servers. There are many articles about BIND installation. Now let's talk about the maintenance topic. How can we understand the running status