How to map the LAN server and application IP ports to external network access without public network IP

In the information age, we often have various needs such as remote office OA, database, building web sites, ERP, accessing NAS, information management, file sharing FTP, and software cross-network interoperability. In the local intranet environment, how to do intranet penetration and map the IP port of the LAN server and application to the external network for access? How to access home intranet without public IP? Here, an intranet penetration scheme is introduced: using fast analysis. Add mapping, as long as you can access the Internet, you can map the internal network IP port to external network access through the quick analysis tool software. By default, a free second-level domain name is automatically generated, providing external network access, and also supports your own domain name without transferring the registrar. The following are instructions on how to use it for your reference.

1. Internal network mapping external network settings

On the target server or another intranet intercommunication host in the local area network, install and log in the quick analysis client, and add port mapping.

2. Fill in the relevant content according to the prompts in the pop-up dialog box:

Mapping name: customizable, easy to distinguish and mark.

Common server ports:

WEB server (web server) port 80; FTP server (file server) port 21; terminal server: port 3389; mail server: port 25 (SMTP) and port 110 (POP); VPN server: port 1723. Public network port type: refers to the port used for external network access.

Intranet IP address: fixed address for intranet access. It can be a fixed intranet IP or a computer name. If the mapping is used on the server, it is recommended to fill in the 127.0.0.1 format.

Application port: the access port of your own intranet.

After completing the filling, click OK to generate the external network access address and port. You can get a free domain name with the suffix gnway.cc provided by the fast resolution software. At this time, the IP address corresponding to the ***.gnway.cc domain name is the public network IP address of the router. If you have specific further needs, you can upgrade to a paid version.

3. External domain name connection access

After the intranet fast resolution port mapping domain name takes effect, it can be accessed through the domain name and external network port in any Internet environment.

Internal network penetration, that is, internal network mapping, internal network ports are mapped to external networks. The realization principle is to associate the domain name with the local intranet IP host through fast analysis software. When the mapped domain name is accessed from the external network, the fast resolution service will identify it accordingly, and point to the corresponding client for resolution to realize data intercommunication.

Kuaiyan has accumulated many years of technology in the industry, serving 5 million users and 1 million enterprises, and more than 2,000 listed companies are choosing "Quickan" to build an enterprise connection ecology based on "Quickan". Widely used in MAC server, CRM, OA, ERP, NAS private cloud, video surveillance, FTP, SVN, Windows remote desktop, game online, website, blog, WeChat official account and small program development and debugging, remote sensing mapping, industry 4.0, etc. It is a powerful assistant for users to realize the interconnection and intercommunication of internal and external network information.

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Origin blog.csdn.net/asdaddsd/article/details/129813140