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服务器网络中转，端口转发脚本使用教程

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wget -N --no-check-certificate https://raw.githubusercontent.com/ToyoDAdoubiBackup/doubi/master/iptables-pf.sh && chmod +x iptables-pf.sh && bash iptables-pf.sh

以下是配置过程的步骤

请输入 iptables 欲转发至的 远程端口 [1-65535] (支持端口段 如 2333-6666, 被转发服务器):

比如输入：10000-11000

欲转发端口 : 10000-11000

请输入 iptables 欲转发至的 远程IP(被转发服务器):

比如输入：223.3.3.3

欲转发服务器IP : 223.3.3.3

请输入 iptables 本地监听端口 [1-65535] (支持端口段 如 2333-6666) (默认端口: 10000-11000):

比如输入：10000-11000

本地监听端口 : 10000-11000

请输入 本服务器的 公网IP网卡IP(注意是网卡绑定的IP，而不仅仅是公网IP，回车自动检测):

本服务器IP : 1.1.1.1

比如输入：1.1.1.1

请输入数字 来选择 iptables 转发类型: 1. TCP 2. UDP 3. TCP+UDP

(默认: TCP+UDP):

比如输入：3

请检查 iptables 端口转发规则配置是否有误 !

本地监听端口 : 10000-11000 服务器 IP : 223.3.3.3

欲转发的端口 : 10000-11000 欲转发 IP : 1.1.1.1 转发类型 : TCP+UDP

脚本内容备份（防止哪天上面链接里的脚本被删）：

#!/usr/bin/env bash PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin export PATH #================================================= # System Required: CentOS/Debian/Ubuntu # Description: iptables Port forwarding # Version: 1.1.1 # Author: Toyo #================================================= sh_ver="1.1.1" Green_font_prefix="\033[32m" && Red_font_prefix="\033[31m" && Green_background_prefix="\033[42;37m" && Red_background_prefix="\033[41;37m" && Font_color_suffix="\033[0m" Info="${Green_font_prefix}[信息]${Font_color_suffix}" Error="${Red_font_prefix}[错误]${Font_color_suffix}" Tip="${Green_font_prefix}[注意]${Font_color_suffix}" check_iptables(){ iptables_exist=$(iptables -V) [[ ${iptables_exist} = "" ]] && echo -e "${Error} 没有安装iptables，请检查 !" && exit 1 } check_sys(){ if [[ -f /etc/redhat-release ]]; then release="centos" elif cat /etc/issue | grep -q -E -i "debian"; then release="debian" elif cat /etc/issue | grep -q -E -i "ubuntu"; then release="ubuntu" elif cat /etc/issue | grep -q -E -i "centos|red hat|redhat"; then release="centos" elif cat /proc/version | grep -q -E -i "debian"; then release="debian" elif cat /proc/version | grep -q -E -i "ubuntu"; then release="ubuntu" elif cat /proc/version | grep -q -E -i "centos|red hat|redhat"; then release="centos" fi #bit=`uname -m` } install_iptables(){ iptables_exist=$(iptables -V) if [[ ${iptables_exist} != "" ]]; then echo -e "${Info} 已经安装iptables，继续..." else echo -e "${Info} 检测到未安装 iptables，开始安装..." if [[ ${release} == "centos" ]]; then yum update yum install -y iptables else apt-get update apt-get install -y iptables fi iptables_exist=$(iptables -V) if [[ ${iptables_exist} = "" ]]; then echo -e "${Error} 安装iptables失败，请检查 !" && exit 1 else echo -e "${Info} iptables 安装完成 !" fi fi echo -e "${Info} 开始配置 iptables !" Set_iptables echo -e "${Info} iptables 配置完毕 !" } Set_forwarding_port(){ read -e -p "请输入 iptables 欲转发至的 远程端口 [1-65535] (支持端口段 如 2333-6666, 被转发服务器):" forwarding_port [[ -z "${forwarding_port}" ]] && echo "取消..." && exit 1 echo && echo -e " 欲转发端口 : ${Red_font_prefix}${forwarding_port}${Font_color_suffix}" && echo } Set_forwarding_ip(){ read -e -p "请输入 iptables 欲转发至的 远程IP(被转发服务器):" forwarding_ip [[ -z "${forwarding_ip}" ]] && echo "取消..." && exit 1 echo && echo -e " 欲转发服务器IP : ${Red_font_prefix}${forwarding_ip}${Font_color_suffix}" && echo } Set_local_port(){ echo -e "请输入 iptables 本地监听端口 [1-65535] (支持端口段 如 2333-6666)" read -e -p "(默认端口: ${forwarding_port}):" local_port [[ -z "${local_port}" ]] && local_port="${forwarding_port}" echo && echo -e " 本地监听端口 : ${Red_font_prefix}${local_port}${Font_color_suffix}" && echo } Set_local_ip(){ read -e -p "请输入 本服务器的 网卡IP(注意是网卡绑定的IP，而不仅仅是公网IP，回车自动检测外网IP):" local_ip if [[ -z "${local_ip}" ]]; then local_ip=$(wget -qO- -t1 -T2 ipinfo.io/ip) if [[ -z "${local_ip}" ]]; then echo "${Error} 无法检测到本服务器的公网IP，请手动输入" read -e -p "请输入 本服务器的 网卡IP(注意是网卡绑定的IP，而不仅仅是公网IP):" local_ip [[ -z "${local_ip}" ]] && echo "取消..." && exit 1 fi fi echo && echo -e " 本服务器IP : ${Red_font_prefix}${local_ip}${Font_color_suffix}" && echo } Set_forwarding_type(){ echo -e "请输入数字 来选择 iptables 转发类型: 1. TCP 2. UDP 3. TCP+UDP\n" read -e -p "(默认: TCP+UDP):" forwarding_type_num [[ -z "${forwarding_type_num}" ]] && forwar企业网站建设ding_type_num="3" if [[ ${forwarding_type_num} == "1" ]]; then forwarding_type="TCP" elif [[ ${forwarding_type_num} == "2" ]]; then forwarding_type="UDP" elif [[ ${forwarding_type_num} == "3" ]]; then forwarding_tseo网站优化培训ype="TCP+UDP" else forwarding_type="TCP+UDP" fi } Set_Config(){ Set_forwarding_port Set_forwarding_ip Set_local_port Set_local_ip Set_forwarding_type echo && echo -e "—————————————————————————————— 请检查 iptables 端口转发规则配置是否有误 !\n 本地监听端口 : ${Green_font_prefix}${local_port}${Font_color_suffix} 服务器 IP\t: ${Green_font_prefix}${local_ip}${Font_color_suffix}\n 欲转发的端口 : ${Green_font_prefix}${forwarding_port}${Font_color_suffix} 欲转发 IP\t: ${Green_font_prefix}${forwarding_ip}${Font_color_suffix} 转发类型\t: ${Green_font_prefix}${forwarding_type}${Font_color_suffix} ————————百度seo网站优化——————————————————————\n" read -e -p "请按任意键继续，如有配置错误请使用 Ctrl+C 退出。" var } Add_forwarding(){ check_iptables Set_Config local_port=$(echo ${local_port} | sed 's/-/:/g') forwarding_port_1=$(echo ${forwarding_port} | sed 's/-/:/g') if [[ ${forwarding_type} == "TCP" ]]; then Add_iptables "tcp" elif [[ ${forwarding_type} == "UDP" ]]; then Add_iptables "udp" elif [[ ${forwarding_type} == "TCP+UDP" ]]; then Add_iptables "tcp" Add_iptables "udp" fi Save_iptables clear && echo && echo -e "—————————————————————————————— iptables 端口转发规则配置完成 !\n 本地监听端口 : ${Green_font_prefix}${local_port}${Font_color_suffix} 服务器 IP\t: ${Green_font_prefix}${local_ip}${Font_color_suffix}\n 欲转发的端口 : ${Green_font_prefix}${forwarding_port_1}${Font_color_suffix} 欲转发 IP\t: ${Green_font_prefix}${forwarding_ip}${Font_color_suffix} 转发类型\t: ${Green_font_prefix}${forwarding_type}${Font_color_suffix} ——————————————————————————————\n" } View_forwarding(){ check_iptables forwarding_text=$(iptables -t nat -vnL PREROUTING|tail -n +3) [[ -z ${forwarding_text} ]] && echo -e "${Error} 没有发现 iptables 端口转发规则，请检查 !" && exit 1 forwarding_total=$(echo -e "${forwarding_text}"|wc -l) forwarding_list_all="" for((integer = 1; integer /dev/null if [[ $? -eq 0 ]]; then if [[ ${Del_forwarding_num} -ge 1 ]] && [[ ${Del_forwarding_num} -le ${forwarding_total} ]]; then forwarding_type=$(echo -e "${forwarding_text}"| awk '{print $4}' | sed -n "${Del_forwarding_num}p") forwarding_listen=$(echo -e "${forwarding_text}"| awk '{print $11}' | sed -n "${Del_forwarding_num}p" | awk -F "dpt:" '{print $2}' | sed 's/-/:/g') [[ -z ${forwarding_listen} ]] && forwarding_listen=$(echo -e "${forwarding_text}"| awk '{print $11}' |sed -n "${Del_forwarding_num}p" | awk -F "dpts:" '{print $2}') Del_iptables "${forwarding_type}" "${Del_forwarding_num}" Save_iptables echo && echo -e "${Info} iptables 端口转发规则删除完成 !" && echo else echo -e "${Error} 请输入正确的数字 !" fi else break && echo "取消..." fi done } Uninstall_forwarding(){ check_iptables echo -e "确定要清空 iptables 所有端口转发规则 ? [y/N]" read -e -p "(默认: n):" unyn [[ -z ${unyn} ]] && unyn="n" if [[ ${unyn} == [Yy] ]]; then forwarding_text=$(iptables -t nat -vnL PREROUTING|tail -n +3) [[ -z ${forwarding_text} ]] && echo -e "${Error} 没有发现 iptables 端口转发规则，请检查 !" && exit 1 forwarding_total=$(echo -e "${forwarding_text}"|wc -l) for((integer = 1; integer /etc/iptables.up.rules fi } Set_iptables(){ echo -e "net.ipv4.ip_forward=1" >> /etc/sysctl.conf sysctl -p if [[ ${release} == "centos" ]]; then service iptables save chkconfig --level 2345 iptables on else iptables-save > /etc/iptables.up.rules echo -e '#!/bin/bash\n/sbin/iptables-restore /etc/network/if-pre-up.d/iptables chmod +x /etc/network/if-pre-up.d/iptables fi } Update_Shell(){ sh_new_ver=$(wget --no-check-certificate -qO- -t1 -T3 "https://raw.githubusercontent.com/ToyoDAdoubiBackup/doubi/master/iptables-pf.sh"|grep 'sh_ver="'|awk -F "=" '{print $NF}'|sed 's/\"//g'|head -1) [[ -z ${sh_new_ver} ]] && echo -e "${Error} 无法链接到 Github !" && exit 0 wget -N --no-check-certificate "https://raw.githubusercontent.com/ToyoDAdoubiBackup/doubi/master/iptables-pf.sh" && chmod +x iptables-pf.sh echo -e "脚本已更新为最新版本[ ${sh_new_ver} ] !(注意：因为更新方式为直接覆盖当前运行的脚本，所以可能下面会提示一些报错，无视即可)" && exit 0 } check_sys echo && echo -e " iptables 端口转发一键管理脚本 ${Red_font_prefix}[v${sh_ver}]${Font_color_suffix} -- Toyo | doub.io/wlzy-20 -- ${Green_font_prefix}0.${Font_color_suffix} 升级脚本 ———————————— ${Green_font_prefix}1.${Font_color_suffix} 安装 iptables ${Green_font_prefix}2.${Font_color_suffix} 清空 iptables 端口转发 ———————————— ${Green_font_prefix}3.${Font_color_suffix} 查看 iptables 端口转发 ${Green_font_prefix}4.${Font_color_suffix} 添加 iptables 端口转发 ${Green_font_prefix}5.${Font_color_suffix} 删除 iptables 端口转发 ———————————— 注意：初次使用前请请务必执行 ${Green_font_prefix}1. 安装 iptables${Font_color_suffix}(不仅仅是安装)" && echo read -e -p " 请输入数字 [0-5]:" num case "$num" in 0) Update_Shell ;; 1) install_iptables ;; 2) Uninstall_forwarding ;; 3) View_forwarding ;; 4) Add_forwarding ;; 5) Del_forwarding ;; *) echo "请输入正确数字 [0-5]" ;; esac相关网站seo优化课程网站建设哪家好。

关键词标签: 中转教程 端口转发 网络中转 转发教程