golang set network card ip

Go language is an open source programming language that is used to build efficient and reliable software. Due to its efficient running speed and concurrency performance, Go language has become one of the preferred languages ​​for professional website and application development. When using Go language for network programming, setting the network card IP is one of the problems that often needs to be dealt with. This article will introduce how to set the network card IP in Go language.

In the Linux operating system, the network card IP setting is usually achieved by calling the system command ifconfig. However, in Go language, we can use the net package to set the network card IP and related parameters. The following is a simple sample code:

package main

import (
    "fmt"
    "net"
)

func main() {
    // 获取eth0网卡的信息
    if eth0, err := net.InterfaceByName("eth0"); err == nil {
        // 设置IP和子网掩码
        ipNet := &net.IPNet{
            IP:   net.ParseIP("192.168.0.2"),
            Mask: net.CIDRMask(24, 32),
        }
        // 设置IP地址
        if err := netlink.AddrReplace(&netlink.Addr{
            IPNet: ipNet,
            Label: eth0.Name,
        }); err != nil {
            fmt.Println("Error:", err)
        }
        fmt.Println("IP address is set successfully!")
    } else {
        fmt.Println("Error:", err)
    }
}

In this example, we use the InterfaceByName function of the net package to obtain the information of the eth0 network card, and then set the IP address and subnet mask through the AddrReplace function of the netlink package . Finally, we output a message that the setup was successful.

It should be noted that if you want to set the network card IP on a Windows system, then you need to use the netsh command to achieve this function. The Go language does not currently support setting the network card through the net package or other third-party libraries. IP and related parameters.

To sum up, Go language is an efficient programming language, which has advantages in network programming that other languages ​​cannot match. In the above example, we learned how to use the net package of Go language to set the network card IP and related parameters. Of course, there are many other parameters and settings to consider when programming your network, but this article only provides a basic example. I hope readers can learn how to set the network card IP in the Go language through this article and apply it to their own development.

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