用gpt4.0写的，一次成功，没有报错，后面又让他小修小补了一下，gpt是真好用 使用脚本前先apt install iptables-persistent安装iptables持久化，否则iptables默认重启后配置消失 #!/bin/bash # 定义公网接口变量，根据实际情况修改 PUBLIC_INTERFACE=vmbr0 # 保存iptables规则 save_iptables_rules() { iptables-save > /etc/iptables/rules.v4 echo “Iptables rules saved.” } # 添加端口映射 add_port_mapping() { echo “Enter the VM IP address:” read vm_ip echo “Enter the public port:” read public_port echo “Enter the VM port:” read vm_port iptables -t nat -A PREROUTING -i $PUBLIC_INTERFACE -p tcp –dport $public_port -j DNAT –to-destination $vm_ip:$vm_port iptables -A FORWARD -p tcp -d $vm_ip –dport $vm_port -j ACCEPT save_iptables_rules echo “Port mapping added: Public port $public_port to VM $vm_ip:$vm_port” } # 删除端口映射 delete_port_mapping() { echo “Enter the VM IP address:” read vm_ip echo “Enter the public port:” read public_port echo “Enter the VM port:” read vm_port iptables -t nat -D PREROUTING -i $PUBLIC_INTERFACE -p tcp –dport $public_port -j DNAT –to-destination $vm_ip:$vm_port iptables -D FORWARD -p tcp -d $vm_ip –dport $vm_port -j ACCEPT save_iptables_rules echo “Port mapping deleted: Public port $public_port to VM $vm_ip:$vm_port” } # 改进的查看当前的端口映射 list_port_mappings() { echo “Current port mappings:” iptables -t nat -L PREROUTING -n -v | grep DNAT | while read line; do # 提取公网端口 public_port=$(echo “$line” | awk ‘{print $11}’ | sed -n -e ‘s/^.*dpt://p’) # 提取目标IP和端口 target=$(echo “$line” | awk ‘{print $NF}’) # 如果没有提取到公网端口，则显示为N/A if [ -z “$public_port” ]; then public_port=”N/A” fi echo “$public_port -> $target” done } # 交互式选择操作 echo “Choose an operation:” echo “1) Add port mapping” echo “2) Delete port mapping” echo “3) List port mappings” read operation case $operation in 1) add_port_mapping ;; 2) delete_port_mapping ;; 3) list_port_mappings ;; *) echo “Invalid option selected.” exit 1 ;; esac exit 0 复制代码 GPT 是真好用，其中list_port_mappings存在比较繁琐的取值，gpt也是顺利搞定
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