Obtaining an IPv4 Address on Unix and Linux
IP stands for Internet Protocol, which specifies the principles of Internet communications. An Internet Protocol (IP) address is a unique identifier for each device on the Internet, allowing data to be transferred between connected devices.
IP addresses IANAare assigned by a standards body called the Internet Assigned Numbers Authority. There are different versions of IP addresses, but IPv4 (Internet Protocol version 4) is the most commonly used for Internet transmissions.
IPv4 (Internet Protocol version 4)
IPv4It is a 32-bit unique address consisting of a network part and a host part. The network part is uniquely assigned to a network, while the host part is assigned to each host in the network.
IPv4 addresses can be private or public. Private addresses are used only on local networks and cannot transmit data over the Internet.
IANA has released three private IP address ranges, as shown below.
10.0.0.0-10.255.255.255 \\
172.16.0.0-172.31.255.255 \\
192.168.0.0-192.168.255.255
A public IP address is also a global address used to communicate with devices (hosts, web, VPN, etc.) over the Internet.
There are two easy ways to get an IP address in Linux: Linux wizard and terminal.
Obtaining an IPv4 Address on Unix and Linux Using the Linux Wizard
In the Linux Wizard, go to 设置, click 网络, and then click the icon 有线in Options 设置.
Click the icon Wiredin Options setting.
A new Linux wizard will appear and you can check the link speed, IPv4 address, IPv6 address, hardware address, default route, and DNS.
Obtaining an IPv4 Address Using Terminal on Unix and Linux
There are also many commands that
can obtain the IP address in the terminal, such as ip address,,, hostname -I.network manager
The command hostname -Iwill just give you the IP address on your terminal.
The command ip addresswill give you a brief description of the IP address.
The command nmcli -p device showwill provide you with a detailed description of the network, such as IPv4 地址, IPv4 网关, 连接类型(wired/wireless), 网络类型, MTU(maximum transmission unit), and 硬件地址.
For reprinting, please send an email to 1244347461@qq.com for approval. After obtaining the author's consent, kindly include the source as a link.
Article URL：https://www.jiyik.com/en/xwzj/opersys_10417.html
Related Articles
How to decompress x.tar.xz format files under Linux
Publish Date：2025/04/08 Views：186 Category：OPERATING SYSTEM
-
A lot of software found today is in the tar.xz format, which is a lossless data compression file format that uses the LZMA compression algorithm. Like gzip and bzip2, it supports multiple file compression, but the convention is not to compr
Summary of vim common commands
Publish Date：2025/04/08 Views：115 Category：OPERATING SYSTEM
-
In Linux, the best editor should be vim. However, the complex commands behind vim's powerful functions also make us daunted. Of course, these commands do not need to be memorized by rote. As long as you practice using vim more, you can reme
Detailed explanation of command return value $? in Linux
Publish Date：2025/04/08 Views：58 Category：OPERATING SYSTEM
-
? is a special variable. This variable represents the return value of the previous command. That is to say, when we run certain commands, these commands will return a code after running. Generally, if the command is successfully run, the re
Common judgment formulas for Linux script shell
Publish Date：2025/04/08 Views：159 Category：OPERATING SYSTEM
-
In shell script programming, predicates are often used. There are two ways to use predicates, one is to use test, and the other is to use []. Let's take a look at how to use these two methods through two simple examples. Example 1 # test –
Shell script programming practice - specify a directory to delete files
Publish Date：2025/04/08 Views：98 Category：OPERATING SYSTEM
-
Usually, in Linux system we need to frequently delete some temporary files or junk files. If we delete them one by one manually, it will be quite troublesome. I have also been learning shell script programming recently, so I tried to write
Use of Linux command at - set time to execute command only once
Publish Date：2025/04/08 Views：158 Category：OPERATING SYSTEM
-
This article mainly involves a knowledge point, which is the atd service. Similar to this service is the crond service. The functions of these two services can be similar to the two functional functions of javascript. Those who have learned
Use of Linux command crontab - loop execution of set commands
Publish Date：2025/04/08 Views：170 Category：OPERATING SYSTEM
-
Compared with at , which executes a command only once, crontab, which we are going to talk about in this article, executes the set commands in a loop. Similarly, the use of crontab requires the support of the crond service. The service is s
Linux practice - regularly delete files under the directory
Publish Date：2025/04/08 Views：198 Category：OPERATING SYSTEM
-
Since we want to delete the files under the directory regularly, we need to use the Linux crontab command. And the content format of each work routine is also introduced in the format of each crontab work. Similarly, we need to use shell sc
How to use the Linux file remote copy command scp
Publish Date：2025/04/08 Views：151 Category：OPERATING SYSTEM
-
Scp copies files between two hosts over the network, and the data is encrypted during transmission. Its underlying layer uses ssh for data transmission. And it has the same authentication mechanism and the same security level as ssh. When u
