[转] iptables交互配置脚本【Linux运维之道之脚本案例】
整个脚本是利用控制流(循环语句)实现一个交互的效果,再利用判断和read来实现配置
虽然有200多行代码,细看其实结构很清晰明了,一看就懂!
不过,为了能拿上台面加了很多字体颜色,不止是为了交互体验,也为了让关键字或者提示更加醒目。
同样可以用此结构来实现其他service的配置,个人感觉交互式的配置更直观、更简洁明了,我写了几个类似的交互配置的脚本都经常在工作中使用
代码奉上,后面附个运行截图:
#!/bin/bash while true do clear echo "———————-menu————————" echo -e "\033[49;32;1m(1) 重启\033[49;35;1miptables\033[0m " echo -e "\033[49;32;1m(2) 添加\033[49;35;1miptables\033[49;32;1m规则\033[0m " echo -e "\033[49;32;1m(3) 删除\033[49;35;1miptables\033[49;32;1m规则\033[0m " echo -e "\033[49;32;1m(4) 关闭\033[49;35;1miptables\033[0m " echo -e "\033[49;32;1m(5) 保存\033[49;35;1miptables\033[49;32;1m规则(输完ACL后要记得保存和查看)\033[0m " echo -e "\033[49;32;1m(6) 查看\033[49;35;1miptables\033[49;32;1m状态\033[0m " echo -e "\033[49;32;1m(7) 添加\033[49;35;1miptables\033[49;32;1m控制列表\033[0m " echo -e "\033[49;32;1m(0) 退出脚本\033[0m " echo "————————————————————" echo -en "\033[49;31;1m 请输入数字0-7: \033[0m" read num if [[ "${num}" =~ "^$" ]]; then echo -e "\033[49;31;5m 请输入0-7中的数字!或者Ctrl+C退出! \033[0m" else if [[ "${num}" =~ "^[a-zA-Z]+$" ]]; then echo -e "\033[49;31;5m 请输入0-7中的数字!或者Ctrl+C退出! \033[0m" else #if [ ${num} -lt 0 -o ${num} -gt 7 ] if [[ "${num}" =~ "[8-9]" ]]; then echo -e "\033[49;31;5m 请输入0-7中的数字!或者Ctrl+C退出! \033[0m" else if [ "${num}" == "1" ] then service iptables restart& else if [ "${num}" == "2" ] ####################################################### then while true do clear echo "———————-add ACL———————" echo -e "\033[49;32;1m(1) 针对源\033[49;35;1mIP\033[49;32;1m放行添加\033[0m " echo -e "\033[49;32;1m(2) 针对服务器\033[49;35;1m端口\033[49;32;1m放行添加 \033[0m " echo -e "\033[49;32;1m(3) 针对有\033[49;35;1mIP和端口\033[49;32;1m的规则添加\033[49;35;1m(这里要参数IP和端口 例如:1.1.1.1/255.255.0.0 80)\033[0m " echo -e "\033[49;32;1m(4) 自定义完整语句添加 \033[0m " echo -e "\033[49;32;1m(0) 返回上一级 \033[0m " echo "——————————————————————" echo -en "\033[49;31;1m 请输入数字0-4: \033[0m" read aclnum if [[ "${aclnum}" =~ "^$" ]]; then echo -e "\033[49;31;5m 请输入0-4中的数字!或者Ctrl+C退出! \033[0m" else if [[ "${aclnum}" =~ "^[a-zA-Z]+$" ]]; then echo -e "\033[49;31;5m 请输入0-4中的数字!或者Ctrl+C退出! \033[0m" else if [[ "${aclnum}" =~ "[5-9]" ]]; then echo -e "\033[49;31;5m 请输入0-4中的数字!或者Ctrl+C退出! \033[0m" elif [ "${aclnum}" == "1" ] then read ip iptables -A INPUT -s ${ip} -p tcp -j ACCEPT service iptables save elif [ "${aclnum}" == "2" ] then read port iptables -A INPUT -p tcp -s 0/0 --dport ${port} -j ACCEPT service iptables save elif [ "${aclnum}" == "3" ] then read ip port iptables -A INPUT -p tcp -s ${ip} --dport ${port} -j ACCEPT service iptables save elif [ "${aclnum}" == "4" ] then read addacl `${addacl}` service iptables save else break fi fi fi echo -n "是否想继续添加,回车或Y继续,按N返回上一级!: [y/n]:" read contine if [ "${contine}" == "n" -o "${contine}" == "N" ] then break fi done ####################################################### else if [ "${num}" == "3" ] then while true do clear echo "———————delete ACL———————-" echo -e "\033[49;32;1m(1) 针对源\033[49;35;1mIP\033[49;32;1m删除\033[0m " echo -e "\033[49;32;1m(2) 针对服务器\033[49;35;1m端口\033[49;32;1m删除 \033[0m " echo -e "\033[49;32;1m(3) 针对有\033[49;35;1mIP和端口\033[49;32;1m的规则删除\033[49;35;1m(这里要参数IP和端口 例如:1.1.1.1/255.255.0.0 80)\033[0m " echo -e "\033[49;32;1m(4) 自定义完整语句删除 \033[0m " echo -e "\033[49;32;1m(0) 返回上一级 \033[0m " echo "————————————————-" echo -en "\033[49;31;1m 请输入数字0-4: \033[0m" read aclnum if [[ "${aclnum}" =~ "^$" ]]; then echo -e "\033[49;31;5m 请输入0-4中的数字!或者Ctrl+C退出! \033[0m" else if [[ "${aclnum}" =~ "^[a-zA-Z]+$" ]]; then echo -e "\033[49;31;5m 请输入0-4中的数字!或者Ctrl+C退出! \033[0m" else if [[ "${aclnum}" =~ "[5-9]" ]]; then echo -e "\033[49;31;5m 请输入0-4中的数字!或者Ctrl+C退出! \033[0m" elif [ "${aclnum}" == "1" ] then read ip iptables -D INPUT -s ${ip} -p tcp -j ACCEPT service iptables save elif [ "${aclnum}" == "2" ] then read port iptables -D INPUT -p tcp -s 0/0 --dport ${port} -j ACCEPT service iptables save elif [ "${aclnum}" == "3" ] then read ip port iptables -D INPUT -p tcp -s ${ip} --dport ${port} -j ACCEPT service iptables save elif [ "${aclnum}" == "4" ] then read deleteacl `${deleteacl}` service iptables save else break fi fi fi echo -n "是否想继续删除,回车或Y继续,按N返回上一级!: [y/n]:" read contine if [ "${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 [ "${num}" == "7" ] then while true do clear echo "———————list ACL———————-" echo -e "\033[49;32;1m(1) 看当前正在使用的规则集 \033[0m " echo -e "\033[49;32;1m(2) 查看每个策略或每条规则、每条链的简单流量统计\033[0m " echo -e "\033[49;32;1m(3) 查看NAT表 \033[0m " echo -e "\033[49;32;1m(4) 自定义查看 \033[0m " echo -e "\033[49;32;1m(0) 退回上一级\033[0m " echo "————————————————-" echo -en "\033[49;31;1m 请输入数字0-4: \033[0m" read aclnum if [[ "${aclnum}" =~ "^$" ]]; then echo -e "\033[49;31;5m 请输入0-4中的数字!或者Ctrl+C退出! \033[0m" else if [[ "${aclnum}" =~ "^[a-zA-Z]+$" ]]; then echo -e "\033[49;31;5m 请输入0-4中的数字!或者Ctrl+C退出! \033[0m" else if [[ "${aclnum}" =~ "[5-9]" ]]; then echo -e "\033[49;31;5m 请输入0-4中的数字!或者Ctrl+C退出! \033[0m" elif [ "${aclnum}" == "1" ] then iptables -L elif [ "${aclnum}" == "2" ] then iptables -L -n -v elif [ "${aclnum}" == "3" ] then iptables -L -t nat elif [ "${aclnum}" == "4" ] then read listacl `${listacl}` else break fi fi fi echo -n "是否想继续查看,回车或Y继续,按N返回上一级!: [y/n]:" read contine if [ "${contine}" == "n" -o "${contine}" == "N" ] then break fi done ################################################ else exit fi fi fi fi fi fi fi fi fi fi echo -n "按回车或者Y返回上一级,按N退出程序![y/n]:" read contine if [ "${contine}" == "n" -o "${contine}" == "N" ] then exit fi done
本文出自 “Tuesday” 博客,请务必保留此出处http://cuimk.blog.51cto.com/6649029/1347743
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