在Debian VPS上配置L2TPVPN的详细指南

在Debian VPS上配置L2TPVPN可以提供一个安全且稳定的连接方式，特别适合测试网络性能或需要加密连接的场景，以下是一个详细的配置指南：

安装Debian VPS

确保你的服务器已经安装了Debian操作系统,如果尚未安装，可以使用以下命令进行安装：

sudo apt-get update
sudo apt-get install -y debian-vps
sudo systemctl enable debian-vps
sudo systemctl start debian-vps

安装必要的软件包

在Debian VPS上，安装L2TPVPN所需的软件包：

sudo apt-get install -y libl2tp-llnsd
sudo apt-get install -y l2tpd
sudo apt-get install -y openssh-server
sudo apt-get install -y openssh-client

配置网络接口

确保网络接口配置正确,以便VPN服务能够正常运行：

sudo nano /etc/sysctl.conf

net.ipv4.ip_forward=1
net.ipv6.ip_forward=1

保存并退出编辑器：

sudo sh -o user=pi /etc/sysctl.conf

设置IP地址

在Debian VPS上，设置IP地址：

sudo nano /etc/resolv.conf

nameserver 8.8.8.8
nameserver 203.0.113.2

保存并退出：

sudo sh -o user=pi /etc/resolv.conf

配置L2TPVPN服务器

创建L2TPVPN服务器配置文件：

sudo nano /etc/l2tpd/l2tpd.conf

[global]
  server = true
  interface = eth0
  address = 192.168.1.100
  port = 5000
  client-cipher = aes-128-spbush
  client-megra = aes-128-spbush
  client-ses = aes-128-spbush
  client-sha = sha256
  client-md5 = sha256
  client-md5 = sha256
  client-cbc = aes-128-ccm
  client-cbc = aes-128-ccm
  client-cbc = aes-128-ccm
  client-siv = aes-128-ccm
  client-siv = aes-128-ccm
  client-siv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-ccm
  client-iv = aes-128-cc