linux dns lookup not working

Dns.c Copy Code code as follows: /* * DNS Query Program on Linux * * author:ismdeep@live.com * * */ Header Files #include #include #include #include #include #include #include List of DNS Servers registered on the systemChar

Each IP address can have a host name that consists of one or more strings separated by a decimal point. With the hostname, do not memorize each IP device IP address, just remember the relative intuitive meaningful host name on the line. This is the

ConceptDefault dns lookup sequence for linux clients: Local DNS Cache → local hosts file → preferred DNS server (recursive) Linux DNS Server Query sequence:The DNS cache of the preferred server → the domain in which the preferred server is

What is the nature of DNS? Domain Name System = DNS (domain name systems) is actually a database, is a distributed database for TCP/IP programs, and is also an important network protocol. DNS stores information about IP addresses and corresponding

The entire Hteret family connected to hundreds of billions of server personal hosts, most of the sites, parts and other servers have used the domain name form of address, such as Www.google.com.mail 163.com. It is clear that this form of address is

The entire Hteret family connected to hundreds of billions of server personal hosts, most of the sites, parts and other servers have used the domain name form of address, such as Www.google.com.mail 163.com. It is clear that this form of address is

The cause of the problem is that the page on the WordPress background is slow or even unresponsive in the local environment, excluding the Google font or the reference of third-party ajax, the page prompts "an unexpected error may occur in WordPress.

Linux basic questions-Linux general technology-Linux technology and application information, the following is a detailed description. I. Fill in blank questions 1. links are divided into hard links and symbolic links. 2. When installing Linux to

In a Linux system, access the device as a file. When the Linux kernel boots, read the file system to be loaded from the file/etc/fstab Each file in the Linux file system is identified by the I node. All disk blocks consist of four parts,

Reprint: http://linuxgirl.blog.51cto.com/1910230/378876 A Fill in the blanks question:1. In a Linux system, access the device in a file format.2. When the Linux kernel boots, read the file system to be loaded from the file/etc/fstab.3. Each file in