Surfshark VPN 线路优化是确保VPN网络稳定、速度快和安全的关键步骤。以下是一些优化建议，帮助您更好地配置和管理Surfshark VPN

确保防火墙设置正确

• 使用VPN专用防火墙： surfsharkVPN 提供的防火墙是专门针对 VPN 的，确保VPN网络的安全性，建议您使用其 built-in 防火墙设置，而不是普通防火墙。
• 防火墙设置：
  • 防火墙名称：选择一个合适的名称，如 Surfshark VPN。
  • 防火墙规则：

    禁止所有端口：`/etc/iptables -A -I /81/82/84/87/88/89/91/92/93/94/95/96/97/98/99//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7/8/9//1/2/3/4/5/6/7