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wget 11.11.255.11:20001
三种返回:
1 ip不通
Connecting to 11.11.255.11:20001...
2 ip通端口不通
Connecting to 11.11.255.11:20001... failed: Connection refused
3 端口通
Connecting to 11.11.255.11:20001... connected
理由:
1 telnet可能linux没有装,但wget 一般都有
2 telent端口通没通,但wget可以看ip不通,ip通端口没通,端口通
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原文链接:https://blog.csdn.net/aa_moon/article/details/103618457
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