debian dhcp服务器能否进行认证

Debian DHCP服务器默认情况下不进行客户端认证

安装DHCP认证工具：

sudo apt-get update
sudo apt-get install dhcpd-server

编辑DHCP配置文件（通常位于/etc/dhcp/dhcpd.conf）：

sudo nano /etc/dhcp/dhcpd.conf

在配置文件中添加以下内容，以启用客户端认证：

require client-authentication;

为需要认证的客户端创建一个OU（组织单元）和相应的用户类。例如，在/etc/dhcp/dhcpd.conf中添加以下内容：

subnet 192.168.1.0 netmask 255.255.255.0 {
    range 192.168.1.10 192.168.1.100;
    option routers 192.168.1.1;
    option subnet-mask 255.255.255.0;
    option domain-name-servers 8.8.8.8, 8.8.4.4;
    auth-nxdomain no;    # conform to RFC1035
    listen-on port 67;
    listen-on port 68;
    # Authentication
    require client-authentication;
    # Create a new user class for authenticated clients
    class "authenticated" {
        match if { is_authenticated(client); };
        # Add other options for authenticated clients here
    };
    # Assign the authenticated user class to the subnet
    subnet 192.168.1.0 netmask 255.255.255.0 {
        range 192.168.1.10 192.168.1.100;
        option routers 192.168.1.1;
        option subnet-mask 255.255.255.0;
        option domain-name-servers 8.8.8.8, 8.8.4.4;
        # Assign the authenticated user class to this subnet
        include "auth-users";
    }
}

创建一个脚本/etc/dhcp/auth-users，用于验证客户端的用户名和密码。例如：

#!/bin/sh
# Replace these variables with your own credentials
USERNAME="myuser"
PASSWORD="mypassword"
# Read the client's username and password from stdin
read -s client_username
read -s client_password
# Verify the credentials
if [ "$client_username" = "$USERNAME" ] && [ "$client_password" = "$PASSWORD" ]; then
    echo "Authenticated client: $client_username"
    exit 0
else
    echo "Authentication failed for client: $client_username"
    exit 1
fi

使脚本可执行：

sudo chmod +x /etc/dhcp/auth-users

重启DHCP服务器以应用更改：

sudo systemctl restart dhcpd

现在，Debian DHCP服务器将要求客户端提供有效的用户名和密码才能获得IP地址。请注意，这只是一个简单的示例，您可能需要根据您的需求进行调整。