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 updatesudo 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 RFC1035listen-on port 67;listen-on port 68;# Authenticationrequire client-authentication;# Create a new user class for authenticated clientsclass "authenticated" {match if { is_authenticated(client); };# Add other options for authenticated clients here};# Assign the authenticated user class to the subnetsubnet 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 subnetinclude "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 credentialsUSERNAME="myuser"PASSWORD="mypassword"# Read the client's username and password from stdinread -s client_usernameread -s client_password# Verify the credentialsif [ "$client_username" = "$USERNAME" ] && [ "$client_password" = "$PASSWORD" ]; thenecho "Authenticated client: $client_username"exit 0elseecho "Authentication failed for client: $client_username"exit 1fi

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。