37 lines
1.1 KiB
Bash
37 lines
1.1 KiB
Bash
#!/bin/bash
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GREEN='\033[0;32m'
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YELLOW='\033[1;33m'
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NC='\033[0m'
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apt update
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apt install -y iproute2
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read -p "请输入要限制带宽的端口号（多个端口用逗号分隔）: " PORTS
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read -p "请输入限速值（单位为M）: " LIMIT
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if [ -z "$PORTS" ] || [ -z "$LIMIT" ]; then
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echo "错误：端口号不能为空。"
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exit 1
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fi
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if ! [[ "$LIMIT" =~ ^[0-9]+$ ]]; then
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echo "错误：限速值必须是一个数字。"
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exit 1
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fi
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INTERFACE="eth0" # 默认主网卡，所有网络接口则改为"all"
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IFS=',' read -ra PORT_ARRAY <<< "$PORTS"
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for PORT in "${PORT_ARRAY[@]}"
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do
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tc qdisc add dev "$INTERFACE" root handle 1: htb default 12
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tc class add dev "$INTERFACE" parent 1: classid 1:1 htb rate "${LIMIT}"mbit
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tc class add dev "$INTERFACE" parent 1:1 classid 1:12 htb rate "${LIMIT}"mbit
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tc filter add dev "$INTERFACE" protocol ip parent 1:0 prio 1 u32 match ip dport "$PORT" 0xffff flowid 1:12
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echo -e "${GREEN}网络接口 $INTERFACE 的端口 $PORT 带宽限制已设置为 ${LIMIT}Mbit。${NC}"
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done
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echo -e "${YELLOW}如果要更改配置请先清除限速规则：sudo tc qdisc del dev $INTERFACE root${NC}"
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