Find the application software connection domain name real IP Modify hosts method

I am using a sniffer tool called Dnsquerysniffer, which can display real-time DNS query records for local computers, and for each DNS resolution query, display the following information: Host name, port number, query ID, request type, request response time, response code, etc. and returns the contents of the DNS record. Domain name added to the Hosts file, Dnsquerysniffer will no longer detect the domain name parsing, and then continue to run sniffer sniffer and application software, one to find all the invalid domain name, and then manually add each domain name to the hosts file.

This method is a common way to find local application software available to hosts, which is suitable for all local application software domain name resolution errors caused by failure to run and so on.

Take Dropbox Software as an example, turn off other useless client software first, open Dnsquerysniffer, then run Dropbox, and record the domain name that it visited. Use a Ping tool to find the IP address for this domain name.

Domain name added to the Hosts file, Dnsquerysniffer will no longer detect the domain name parsing, and then continue to run sniffer sniffer and application software, one to find all the invalid domain name, and then manually add each domain name to the hosts file.

Summary

This method is a common way to find local application software available to hosts, which is suitable for all local application software domain name resolution errors caused by failure to run and so on.

Hosts knowledge popularization:

Hosts is a system file without extensions, you can use Notepad and other tools to open, its role is to use a number of commonly used Web site domain name and its corresponding IP address to establish an association "database", when the user in the browser to enter a need to log in to the URL, The system will first automatically find the corresponding IP address from the Hosts file, once found, the system will immediately open the corresponding Web page, if not found, then the system will be submitted to DNS domain name resolution server IP address resolution.

Storage location

Hosts files are not located in the same location on different operating systems (or even in different versions of Windows):

Windows Nt/2000/xp/vista/7/8 (that is, Microsoft NT Series operating system): The default location is%SYSTEMROOT%SYSTEM32DRIVERSETC, but it can also be changed. Dynamic directories are determined by the registry key Hkey_local_machinesystemcurrentcontrolsetservicestcpipparametersdatabasepath. Where%systemroot% refers to the system installation path. For example, Windows xp/windows 7/windows 8 is installed in C:windows, so the Hosts file is in C:windowssystem32driversetc.