View the intranet mapping between host IP port and fast resolution

While playing the game, I suddenly dropped the line ? Half of the office network was interrupted and the system crashed ? Network signals are intermittent and sometimes absent ? These network problems always bother us at ordinary times , When we call friends who understand computers to help , Watch their skilled operation , Full screen skipping code , Are you also very envious ? There is a problem with your computer network when you are working , It can only be handled by colleagues in the Technology Department , However, a lot of work needs to be done urgently , But you can only stare ? Actually , We can also carry out certain technical operations , When our network is not smooth , We need to make some network settings , At this time, you need to input the computer server ip Address and port , But some users don't know how to view this computer ip And port , Today, let's introduce the method of checking .

How to view this machine ip And port ?

 netstat The command comes with the system without downloading , Directly click the start button to run ,cmd Console command window . First of all, let's test netstat , Take a look at his command line parameters , Input netstat /? enter . Many parameters of this command will appear at this time , We often use several , The rest are not commonly used , Let's talk about the commonly used ones first .

First of all, without adding parameters , First enter the following command ,netstat enter , In this case, the active connection of this machine will be directly displayed , There are indications TCP agreement 、 Native address 、 External address and connection status , Columns displayed at external addresses surface Some of the displays are not in digital form , Here we need to add a parameter .

Parameters -n That's what we need , It can display the connection in numbers , Show ip And port , Enter the command netstat -n, enter .

At this time, the output external connection address is in digital form ip And ports , You can compare the previous picture , We also often add -n Parametric .

Then let's look at other parameters , For example, add parameters when displaying the routing table -r , Enter the command netstart -r enter , You can see that some related information of the routing table is output .

You can also add parameters -s, It just shows the statistics of each protocol , Input netstat -s enter , At this time, the above results will be output .

This command can display the active link of this machine to see this machine ip And port are connecting or disconnected , To achieve our purpose .

Fast parsing How to achieve Intranet mapping ?

1. Intranet mapping and extranet settings . Install and log in to the quick resolution client , Add port mapping .

2. The information related to mapping and filling in are ：

Application port （ Common server ports ）：

WEB The server （ Web server ）：80 port

FTP The server （ File server ）：21 port

Terminal Server ：3389 port

Mail server ：25 port （SMTP） and 110 port （POP）

VPN The server ：1723 port

Intranet address ： Intranet access to fixed address . It can be a fixed intranet IP Or computer name . If the mapping is used locally on the server , It is recommended to fill in 127.0.0.1 Format .

3. Internet domain name connection access

After the intranet fast resolution port mapping domain name takes effect , That is, you can surf the Internet in any environment , By domain name （ And extranet port ） Visit . Generally, the new domain name record takes effect quickly .

Intranet through , Intranet mapping , The intranet port is mapped to the extranet port . Its implementation principle is to connect the domain name with the local intranet IP host , Bind relationship associations through fast parsing software , When accessing the mapped domain name on the Internet , The fast parsing service will identify the corresponding , And point to the corresponding client to analyze and realize data exchange .

Fast resolution intranet penetration is often used in remote office OA、 database 、 build web Website 、ERP、 visit NAS、 information management 、 File sharing FTP、 Software interworking across networks and other scenarios . Register and log in to automatically generate free secondary domain names by default , Provide extranet access , If you have specific further requirements, you can upgrade to the paid version .