iptables commands

• iptables-save iptables-restore
  • iptables-save iptables-restore 文件格式
• iptables Troubleshooting
  • iptables LOG target options
  • iptables stat
  • 为什么kill进程后socket一直处于FIN_WAIT_1状态
    • FIN包被认为是INVALID状态？
  • Log internal conntrack information
    • nf_log_all_netns
    • Logger configuration
    • Example debug output
    • Dynamic Printk
    • The unconfirmed and dying lists
      • Examining these lists