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File transfer unix

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(@raymondjuhaszmedgecom)
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Joined: 17 years ago
Posts: 2
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Sorry to ask such a dumb question:
I love your product and use it all the time.
I can do a file transfer with my Linux servers, SSH2, and works great!
I also have Sun Unix servers that I am telneted into via our company VPN and would like to transfer files from the remote Sun Unix server to my xp laptop and vice versa. How do I do this.
My connection properties is presently "Telnet". Should I change this?
I am also running ver 6.01 win 2.0.

Thank you for your time here,

Ray

[size=1][ February 04, 2008, 03:42 PM: Message edited by: Brian T. Pence ][/size]


   
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(@bpence)
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Joined: 9 months ago
Posts: 1374
 

If you're using the SFTP button, this feature is only available with SSH2 connections. It uses the encrypted session you've already established to transport file data in a secure way.

If you're using telnet, you could try using the zmodem protocol if your host supports it. Try typing 'rz' or 'sz' at the command line and see what happens. If the host doesn't have it, you could either switch to SSH2 (if the host supports it) or install the rzsz package, which you can find on thet net to support zmodem.

However, zmodem over telnet suffers from the same basic security problem ALL telnet data does. It is sent without any enryption, and so is not a good way to transfer anything sensitive.

ZModem will also work over SSH if your host supports SSH but not SFTP. In fact, ZModem works over all supported connection types (telnet, ssh1, ssh2, dialup, serial) and inherits the security properties (or lack of security) of the medium underneath.

Hope this helps!

Let me know your progress!

Brian Pence
Celestial Software
[url= http://www.celestialsoftware.net ]http://www.celestialsoftware.net[/url]


   
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(@raymondjuhaszmedgecom)
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Joined: 17 years ago
Posts: 2
Topic starter  

Brian, Thanks for your reply.
When typing rz or sz I get command not found. My old Sun hosts do not support SSH2.
I am not able to install the rzsz package because this is Medical computers and it has to go thru testing for authorization.

You are right regarding the security of Telnet, but that appears to be my only resolution on these older systems.

Not a problem, I will continue using Absolute Telnet as SSH2 works great on our Linux systems and works fine via Telnet on our Sun systems minus the ability to do file transfer.

Thanks again for your support,
Ray


   
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