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How to telnet?

How to telnet website, mailserver and any many other things to test connectivity?
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VINOD MORE
Asked:
VINOD MORE
2 Solutions
 
enachemcCommented:
telnet server port
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Fred MarshallCommented:
Usually mail servers will respond.  Not all devices will.

telnet [ipaddress or servername] 110       ... where 110 is the normal port to get mail as an example.

user: [name]
pass: [password]

then you should get a response from the server / device.
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VINOD MORELinux System AnalystAuthor Commented:
Will get any welcome message? or screen? after successful command execution?
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megaman5Commented:
If the port is open, you will atleast get connected.  If the port is closed, telnet will close with error 'Connection refused'

After connecting, it depends on the protocol (application) how to test.

For example, port 25 for SMTP (Mail)

http://technet.microsoft.com/en-us/library/aa995718(EXCHG.65).aspx

or WEB (port 80)

http://www.esqsoft.com/examples/troubleshooting-http-using-telnet.htm

Thanks.
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