But there is a folk database that can solve this problem, that is, the innocence database.
At present, Baidu and many other websites are also using this library.
The principle is to improve the database by users filling in their own location or company information and their own IP.
Because most IPS are dynamically allocated, the accuracy cannot be guaranteed; If someone in a company that uses fixed IP fills in company information, you may find that.
Specifically, you can directly enter the IP in Baidu, or enter the IP in the website that uses this library, such as/kloc-0 123cha.com
Extended data:
IP is the abbreviation of Internet Protocol, which is the network layer protocol in TCP/IP system.
The purpose of designing IP is to improve the scalability of the network;
One is to solve the Internet problem and realize the interconnection of large-scale heterogeneous networks;
The second is to separate the coupling relationship between the top-level network application and the bottom-level network technology, which is convenient for independent development.
According to the end-to-end design principle, IP only provides connectionless, unreliable and best-effort packet transmission services for the host.
IP addresses are used to identify devices on the network. Therefore, an IP address consists of two parts: a network address and a host address.
network address
The network address can be used to identify the network where the device is located, and the network address is located in front of the IP address.
When an organization or enterprise applies for an IP address, it gets a unique and recognizable network address instead of an IP address.
All devices on the same network have the same network address.
The function of IP routing is to decide which network to send IP packets to according to the network address in the IP address.
Host address
The host address is located behind the IP address and can be used to identify devices in the network.
Devices in the same network will have the same network address, and devices will be distinguished by the host address.
Because the size of each network is different, large networks should use shorter network addresses in order to use more host addresses;
Conversely, smaller networks should use longer network addresses.
In order to meet the needs of different network sizes, IP addresses are designed and divided according to the length of network addresses.