Hi, On the windows side, there is a program called PuTTY that I use all the time, and in particular there was a setting that I cannot seem to find on any other program. When opening a connection, I could select SSH, Telnet, RLogin etc but the one I am interested in is Raw. I more than happy that Terminal will suffice for most things but cannot seem to get this to work. Any help on getting Terminal to work or an application that can do it would be great. On the iPhone there is an App called pTerm that does exactly what I want it to do. There is a PuTTY version for Mac but its seems to be a bit clunky and have to install darwin ports etc. Thanks Gavin.
PuTTY's raw connection type is just a way of making a raw TCP connection. You can use telnet or nc to achieve the same thing in Terminal: will@Darwin: nc relay.plus.net 25 220 relay.plus.net ESMTP Exim Tue, 04 Aug 2009 00:02:08 +0100 helo 250 pih-relay08.plus.net Hello 1.2.3.4 quit 221 pih-relay08.plus.net closing connection will@Darwin: telnet relay.plus.net 25 Trying 212.159.8.107. Connected to relay.plus.net. Escape character is '^'. 220 relay.plus.net ESMTP Exim Tue, 04 Aug 2009 00:03:10 +0100 helo 250 pih-relay08.plus.net Hello 1.2.3.4 quit 221 pih-relay08.plus.net closing connection Connection closed by foreign host. From the PuTTY manual -: Sometimes it can be useful to connect directly to one of these services and speak the protocol ‘by hand’, by typing protocol commands and watching the responses.
On Unix machines, you can do this using the system's telnet command to connect to the right port number. For example, telnet mailserver.example.com 25 might enable you to talk directly to the SMTP service running on a mail server.
Although the Unix telnet program provides this functionality, the protocol being used is not really Telnet. Really there is no actual protocol at all; the bytes sent down the connection are exactly the ones you type, and the bytes shown on the screen are exactly the ones sent by the server. Unix telnet will attempt to detect or guess whether the service it is talking to is a real Telnet service or not; PuTTY prefers to be told for certain. What kind of device are you connecting to? I assume by 'TLS/SSL enabled telnet client' they don't mean SSH, so what then? Stunnel + telnet?
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