Wednesday, August 22, 2007

如何检查port是不是打开了?

1. 使用命令行:
telnet tutorsky.dyndns.org 5060
Trying 68.32.224.241...
Connected to tutorsky.dyndns.org. --这个显示5060端口是打开的
Escape character is '^]'.

telnet tutorsky.dyndns.org 5061
Trying 68.32.224.241...
没有出现connected to... --显示5061端口没有打开。

2. 访问这个网页:http://www.canyouseeme.org/

Success: I can see your service on 68.32.224.241 on port (5060)
Your ISP is not blocking port 5060

3. netstat

比如:netstat -a -p udp


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