Created
November 20, 2018 09:58
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Test which TCP ports are blocked by my ISP
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#!/bin/bash | |
for port in {1..9999}; do | |
echo -n "TCP $port: " | |
result=$(nc "$1" "$port" -w 1 2>&1 < /dev/null) | |
if [ "$?" -eq 0 ]; then | |
echo "Open" | |
continue | |
fi | |
if [[ "$result" == *refused* ]]; then | |
echo "Closed" | |
fi | |
if [[ "$result" == *time* ]]; then | |
echo "$port" >> block_list.txt | |
echo "BLOCKED" | |
fi | |
done |
大神,本人不才,现在也是遇到了有公网IP但是连接不上的问题,大概率是ISP封锁端口了,通过网上教程找到这里来,冒昧的问一句,这个脚本如何使用?
冒昧的问一句,这个脚本如何使用?
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多谢脚本,mac系统可以稍微修改下: nc "$1" "$port" -v -G 1 -w 1 2>&1