Shell實現的iptables管理腳本的方法教程

這篇文章主要講解了“Shell實現的iptables管理腳本的方法教程”，文中的講解內容簡單清晰，易于學習與理解，下面請大家跟著小編的思路慢慢深入，一起來研究和學習“Shell實現的iptables管理腳本的方法教程”吧！

代碼如下:

#!/bin/bash
while true
do
clear
echo "----------------------menu----------------------"
echo "(1) service iptables restart"
echo "(2) iptables add"
echo "(3) iptables delete"
echo "(4) iptables stop"
echo "(5) iptables save(不推薦使用這種模式)"
echo "(6) iptables status"
echo "(7) iptables ACL list"
echo "(0) exit"
echo "會在當前的目錄下生成一個fw.sh文件"
echo "-------------------------------------------------"
echo -n "enter you chose[0-7]:"
read num
if [ ${num} -lt 0 -o ${num} -gt 7 ]
    then
      echo "this is not between 0-7"
else
   if [ "${num}" == "1" ]
      then
      service iptables restart&
else
   if [ "${num}" == "2" ]
#######################################################
       then
          while [ "1" == "1" ]
          do
          clear
          echo "----------------------add ACL----------------------"
          echo "(1) 針對源IP放行添加"
          echo "(2) 針對服務器端口放行添加"
          echo "(3) 針對有端口和服務的ACL添加（這里要參數IP和端口 例如 0/0 80）"
          echo "(4) 自定義添加"
          echo "(5) 退回上一級"
          echo "-------------------------------------------------"
          echo -n "enter you chose[0-4]:"
          read aclnum
          if [ "${aclnum}" == "1" ]
             then
             read ip
             iptables -A INPUT -s ${ip} -p tcp --dport 22 -j ACCEPT
         echo "iptables -A INPUT -s ${ip} -p tcp --dport 22 -j ACCEPT" >>fw.sh
#            service iptables save
          elif [ "${aclnum}" == "2" ]
             then
             rad ip
             iptables -A INPUT -p tcp --dport ${IP}  -j ACCEPT
         echo "iptables -A INPUT -p tcp --dport ${IP}  -j ACCEPT" >>fw.sh
#            service iptables save
          elif [ "${aclnum}" == "3" ]
             then
             read ip port
             iptables -A INPUT -p tcp -s ${ip} --dport ${port} -j ACCEPT
             echo "iptables -A INPUT -p tcp -s ${ip} --dport ${port} -j ACCEPT" >>fw.sh
#            service iptables save
          elif [ "${aclnum}" == "4" ]
             then
             read addacl
             `${addacl}`
             service iptables save
          else
             break
          fi
          echo -n "是否想繼續添加: [y/n]:"
          read contine
          if [ "${contine}" == "n" -o "${contine}" == "N" ]
             then
             break
             fi
          done
#######################################################
else
   if [ "${num}" == "3" ]
          then
          while [ "1" == "1" ]
          do
          clear
          echo "---------------------delete ACL----------------------"
          echo "(1) 針對源ip刪除"
          echo "(2) 針對端口刪除"
          echo "(3) 針對有端口和服務的ACL刪除"
          echo "(4) 自定義刪除"
          echo "(5) 退回上一級"
          echo "-------------------------------------------------"
          echo -n "enter you chose[0-5]:"
          read aclnum
          if [ "${aclnum}" == "1" ]
             then
             read ip
             iptables -D INPUT -s ${ip} -p tcp --dport 22 -j ACCEPT
             echo "iptables -D INPUT -s ${ip} -p tcp --dport 22 -j ACCEPT" >>fw.sh
#            service iptables save
          elif [ "${aclnum}" == "2" ]
             then
             read port
             iptables -D INPUT -p tcp --dport ${port}  -j ACCEPT
             echo "iptables -D INPUT -p tcp --dport ${port}  -j ACCEPT" >>fw.sh
#            service iptables save
          elif [ "${aclnum}" == "3" ]
             then
             read ip port
             iptables -D INPUT -p tcp -s ${ip} --dport ${port} -j ACCEPT
         echo "iptables -D INPUT -p tcp -s ${ip} --dport ${port} -j ACCEPT" >>fw.sh
#            service iptables save
          elif [ "${aclnum}" == "4" ]
             then
             read deleteacl
             `${deleteacl}`
             service iptables save
          else
             break
          fi
          echo -n "是否想繼續添加: [y/n]:"
          read contine
          if [ "${contine}" == "n" -o "${contine}" == "N" ]
             then
             break
             fi
          done
###################################################################
else
   if [ "${num}" == "4" ]
       then
       echo -e "`service iptables stop&` "
else
   if [ "${num}" == "5" ]
       then
       echo -e "`service iptables save&`"
else
   if [ "${num}" == "6" ]
       then
       echo -e "`service iptables status&`"
else
   if [ "${num}" == "7" ]
       then
         while [ "1" == "1" ]
       do
       clear
       echo "---------------------list ACL----------------------"
       echo "(1) 查看當前正在使用的規則集"
       echo "(2) 查看每個策略或每條規則、每條鏈的簡單流量統計"
       echo "(3) 查看NAT表"
       echo "(4) 自定義查看"
       echo "(5) 退回上一級"
       echo "-------------------------------------------------"
       echo -n "enter you chose[0-5]:"
       read aclnum
       if [ "${aclnum}" == "1" ]
          then
          iptables -L
       elif [ "${aclnum}" == "2" ]
          then
          iptables -L -n -v
       elif [ "${aclnum}" == "3" ]
          then
          iptables -L -t nat
       elif [ "${aclnum}" == "4" ]
          then
          read listacl
          `${listacl}`
       else
        break
         fi
       echo -n "是否想繼續添加: [y/n]:"
          read contine
          if [ "${contine}" == "n" -o "${contine}" == "N" ]
             then
             break
          fi
       done
################################################
else   
   exit
fi
  fi
    fi
     fi
      fi
       fi
        fi
         fi
echo -n "Do you contine [y/n]:"
read contine
if [ "${contine}" == "n" -o "${contine}" == "N" ]
   then
   exit
fi
done

感謝各位的閱讀，以上就是“Shell實現的iptables管理腳本的方法教程”的內容了，經過本文的學習后，相信大家對Shell實現的iptables管理腳本的方法教程這一問題有了更深刻的體會，具體使用情況還需要大家實踐驗證。這里是億速云，小編將為大家推送更多相關知識點的文章，歡迎關注！