How to check computer IP
In today's digital age, knowing how to find a computer's IP address is an essential skill. Whether it is for network configuration, remote access or troubleshooting, it is very important to know how to query IP addresses. This article will detail how to find the IP address of a computer in different operating systems and provide related structured data.
1. What is an IP address?
An IP address (Internet Protocol Address) is a unique identifier assigned to each device connected to the network. It is divided into two formats, IPv4 and IPv6, and is used to locate and identify devices in the network.
2. How to find the IP address of the computer?
Here's how to find your IP address in different operating systems:
| operating system | Operation steps |
|---|---|
| Windows | 1. Open the "Command Prompt" (press Win+R and enter cmd). 2. Type “ipconfig” and press Enter. 3. Find the IP address next to "IPv4 Address" or "IPv6 Address". |
| macOS | 1. Open System Preferences > Network. 2. Select the currently connected network (such as Wi-Fi). 3. Click "Advanced" > "TCP/IP" to view the IP address. |
| Linux | 1. Open a terminal. 2. Type "ifconfig" or "ip addr" and press Enter. 3. Find the IP address in the output information. |
3. Query the public IP through the browser
If you need to query the computer’s public IP (that is, the IP address on the Internet), you can quickly obtain it through the following website:
| Website name | URL |
|---|---|
| IP.cn | https://www.ip.cn |
| WhatIsMyIP | https://www.whatismyip.com |
| IP138 | https://www.ip138.com |
4. Types of IP addresses
IP addresses are divided into two types: public IP and private IP:
| Type | Description | Example |
|---|---|---|
| Public IP | Assigned by an Internet Service Provider (ISP) and used to uniquely identify devices globally. | 123.45.67.89 |
| Private IP | Used for internal LAN communications and cannot be accessed directly on the Internet. | 192.168.1.1 |
5. Why do you need to know the IP address?
Understanding the purpose of IP addresses can help us make better use of network resources:
1.Network configuration: You need to know the device's IP address when setting up a router or firewall.
2.remote access: Remote desktop connection or file sharing can be achieved through IP address.
3.Troubleshooting: When there is a problem with the network, the IP address is important information for diagnosis.
6. Precautions
1. Public network IP may change dynamically, especially for home broadband users.
2. Private IPs are usually assigned fixedly within the LAN, but they can also be assigned dynamically through DHCP.
3. Protect IP address privacy and avoid disclosing it at will to prevent potential network attacks.
Through the above methods, you can easily find the IP address of your computer and use it flexibly according to your needs. Whether it is daily use or professional configuration, mastering IP address query skills will bring you convenience.
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