mac

  1. # 显示网络设备信息，但是在mac中会显示非常多的信息，让人不知所措
  2. ifconfig en0
  4. # man networksetup
  5. # networksetup – 是系统首选项中网络设置的配置工具。
  6. # 列出所有的硬件报告
  7. networksetup -listallhardwareports
  9. # ipconfig getpacket en0
  10. # getpacket interface-name
  11. #  Prints to standard output the DHCP/BOOTP packet that the client accepted from the DHCP/BOOTP server.  This command is useful to check what the server provided, and
  12. #  whether the values are sensible.  This command outputs nothing if DHCP/BOOTP is not active on the interface, or the attempt to acquire an IP address was unsuccessful.
  14. # arp -a 此命令返回arp表信息
  15. # arp表记录了，同一子网中主机ip地址与mac地址的对应关系
  16. arp -a
  18. # 查看路由表 http://www.edulinks.cn/2020/05/19/20200519-macos-route/
  19. # 路由信息中Flags的一些具体含义如下：
  20. # U = Up
  21. # G = Gateway
  22. # S = Static, e.g., default route added at boot time
  23. # H = Host-specific
  24. # C = Generate new (host-specific) routes on use
  25. # L = Valid link-layer (MAC) address
  26. # c = Cloned route
  27. # R = Reject route, known but unreachable route
  28. netstat
  30. # 查看到达目标端点所经过的路由器 
  31. traceroute www.baidu.com

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window

  1. # 此命令查看ip地址信息
  2. ipconfig /all

linux