Golang在CentOS上的网络配置方法

package main

import (
	"fmt"
	"net"
	"os"
	"strconv"
	"strings"
)

func main() {
	interfaceName := "ens33" // 替换为实际的网络接口名称
	ip := "192.168.1.100"
	subnetMask := "255.255.255.0"
	gateway := "192.168.1.1"
	dnsServers := []string{"8.8.8.8", "8.8.4.4"}

	// 修改网络配置文件
	configFile := fmt.Sprintf("/etc/sysconfig/network-scripts/ifcfg-%s", interfaceName)
	file, err := os.OpenFile(configFile, os.O_RDWR, 0666)
	if err != nil {
		fmt.Println("无法打开网络配置文件:", err)
		return
	}
	defer file.Close()

	content, err := ioutil.ReadAll(file)
	if err != nil {
		fmt.Println("无法读取网络配置文件:", err)
		return
	}

	newContent := []byte(strings.ReplaceAll(string(content), "BOOTPROTO=dhcp", "BOOTPROTO=static"))
	newContent = []byte(strings.ReplaceAll(string(newContent), "ONBOOT=no", "ONBOOT=yes"))
	newContent = []byte(fmt.Sprintf("IPADDR=%s\nNETMASK=%s\nGATEWAY=%s", ip, subnetMask, gateway))
	newContent = []byte(fmt.Sprintf("DNS1=%s\nDNS2=%s", strings.Join(dnsServers, " "), strings.Join(dnsServers, " ")))

	if _, err := file.Write(newContent); err != nil {
		fmt.Println("无法写入网络配置文件:", err)
		return
	}

	// 重启网络服务
	fmt.Println("重启网络服务以应用更改...")
	os.system(fmt.Sprintf("sudo systemctl restart network"))

	// 验证配置
	fmt.Println("验证网络配置...")
	ifconfigOutput, err := exec.Command("ifconfig", interfaceName).Output(); err == nil {
		fmt.Println(string(ifconfigOutput))
	} else {
		fmt.Println("无法获取网络配置:", err)
	}
}