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TOPIC: HP-UX issue: stray characters sent to console
#2
HP-UX issue: stray characters sent to console 17 Years, 4 Months ago  
I'm connecting to an HP-UX machine here, using vt220, and changing the term so backspace deletes. However, I find two problems:

1) ctrl-c doesn't kill applications

2) Bigger problem, If I don't type anything for 30 seconds to a minute, I get garbage mysteriously sent to the system. At a shell prompt, it acts like 'q' + carriage return. When an app is running, I see ^?q sent to the console, and it kills my application.

Any ideas, term settings, I should use to solve this?

Thanks!

[ December 05, 2002, 10:06 AM: Message edited by: Brian T. Pence ]
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#3
Re: HP-UX issue: stray characters sent to console 17 Years, 4 Months ago  
Bokonon,

Thanks for posting here. I think I can help you out. First, though, what version of Absolute are you using?

On your first topic, I'd first need to see the output of the 'stty -a' command from your system to see if the intr signal is configured properly. Also, I'd be interested to know if ctrl-c works when you use other telnet or ssh apps. Just reply here and post the output of 'stty -a' so I can take a look.

Your second topic sounds like the dreaded HPUX telnet no-op bug. This condition occurs when keepalives are enabled under Options->Properties->Connection when using telnet to an HPUX server. When configured, AbsoluteTelnet sends periodic no-op (no-operation) data to the telnet server to keep the telnet connection 'hot' and prevent disconnects. On a normal telnet server, this data is simply discarded and ignored, but HPUX doesn't handle it well and echoes garbage to the screen. The remedy is to disable keepalives when telneting to HPUX systems.

Also, you might try switching to an SSH connection as both of these behaviors may resolve themselves there. I'm *sure* that the keepalive under SSH is better behaved and there's a good chance that the 'intr' signal would be properly set there as well.

Brian Pence
Celestial Software
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Brian Pence
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SSH , SFTP, and Telnet in a tabbed interface for Windows XP, Vista, Mobile, and others
 
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#4
Re: HP-UX issue: stray characters sent to console 17 Years, 4 Months ago  
Thanks!

My local IT guru came to the same conclusion for you on the ctrl-c issue; seems my stty is all messed up, but I fixed the intr.

I'll try turning off keepalives on the HPUX for now. I'll try ssh too.

Thanks!

-Bok
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