Archive for April 10th, 2012

Using Telnet for Basic Network Troubleshooting and Port Scanning

Tuesday, April 10th, 2012

2012-04-10 Updated

2010-02-04 Initial Post

For many years now, I've known about using telnet to connect to port 25 to test SMTP connectivity (see http://support.microsoft.com for how to telnet to port 25 SMTP). I didn't realize until last week that telnet can be used to connect to any open port. (more...)

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