EPICS Controls Argonne National Laboratory

Experimental Physics and
Industrial Control System

1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  <20082009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024  Index 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  <20082009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
<== Date ==> <== Thread ==>

Subject: Re: Ethernet-to-RS232
From: Rod Nussbaumer <[email protected]>
To: [email protected]
Date: Wed, 09 Jul 2008 21:52:42 -0700
Eric Norum wrote:
We have an 'iocConsole' script which ssh's to a common machine as a common user (controlled by ssh public keys) and connects to a screen
session if it is active and otherwise starts a screen session. The
screen session multiplexes access to the single serial line. This
deals with most of your concerns, I believe.


1) We can control access without having to deal with IT
administrators (other than setting up the common user account to
begin with) -- just add a public key to the common user account. 2)
Multiple users can access a serial line session at the same time. 3)
Persistent scrollback, even if no users are currently attached.


Eric.
We are presently using a system developed in-house, but based
heavily on your description of your own iocConsole application. It works fine, but concentrates all access through a single host, and
requires maintenance to add and delete IOCs, etc. I think it would be nice and simple to just open an SSH or telnet session from wherever you are. Having both systems operate concurrently would be the best of all worlds.


--- Rod.


Replies:
Re: Ethernet-to-RS232 Ralph Lange
Re: Ethernet-to-RS232 Dirk Zimoch
References:
Ethernet-to-RS232 Dave Reid
Re: Ethernet-to-RS232 Mauro Giacchini
RE: Ethernet-to-RS232 Rees, NP (Nick)
Re: Ethernet-to-RS232 David Kline
Re: Ethernet-to-RS232 Rod Nussbaumer
Re: Ethernet-to-RS232 Matthieu Bec
Re: Ethernet-to-RS232 Maren Purves
Re: Ethernet-to-RS232 Eric Norum

Navigate by Date:
Prev: Re: Ethernet-to-RS232 Eric Norum
Next: Re: Ethernet-to-RS232 Ralph Lange
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  <20082009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
Navigate by Thread:
Prev: Re: Ethernet-to-RS232 Eric Norum
Next: Re: Ethernet-to-RS232 Ralph Lange
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  <20082009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
ANJ, 02 Sep 2010 Valid HTML 4.01! · Home · News · About · Base · Modules · Extensions · Distributions · Download ·
· Search · EPICS V4 · IRMIS · Talk · Bugs · Documents · Links · Licensing ·