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Redirecting output to remote monitor over TCP/IP.

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Top Forums UNIX for Advanced & Expert Users Redirecting output to remote monitor over TCP/IP.
# 1  
Old 02-03-2009
Redirecting output to remote monitor over TCP/IP.
We have AIX4.1 (yeah I know - we're upgrading to 5 soon) and have been running almost entirely on ASynch direct connects. We're now converting to TCP/IP thin client terminals and PC's. One of processes was a Turn Around Time screen job that would constantly update various information from 6 different jobs and display this information on one of 3 different tty's based on the job. I'm sort of stuck on how to convert this process to TCP/IP. everything runs, but I don't know how to get the output to each of the specfic terminals in full screen mode.

The data isn't saved so it's not a file that I can 'tail' or 'cat'.
Coming in through TCP/IP, I can't control which pts will be assigned. I really want to keep this down to a single process that loops through these jobs becuase of some underlying licensing issues and space constraints. I think I could create 3 users and just have them loop through their 2 jobs each based on a startup script, but I'd like to explore some other options.

I'm new to the forums and hope I selected the best group. I could have gone to a more specific thread but was afraid that I'd end up with the wrong audience.
# 2  
Old 02-05-2009
Quote:
I'm new to the forums and hope I selected the best group. I could have gone to a more specific thread but was afraid that I'd end up with the wrong audience.
I moved it to "Advanced UNIX users" because your question is certainly more advanced. Also doesn't seem specific to AIX.

So you want to update several TTYs with information from 6 different jobs? How do you get this information from the jobs? And why does it have to be in "full screen mode". The thin clients are running X Windows or something, correct? Or are the thin clients simply running a large monolithic TTY what is delivered over TCP/IP ?
# 3  
Old 02-05-2009
Our system supports a hospital lab. We're running an Open-M version of MUMPS. These 6 jobs are queries that produce data from the system that's used to populate Turn Around Time screens and /or late specimens and such for the techs in various departments. One unix PID actually runs the various jobs- JOB 1 >tty1 hold for 5 seconds, job 2>tty2 hold for 5 seconds job 3>tty 3, hold, job 4>back to tty1 and hold.... This continues in an ongoing loop. I'd like to maintian this setup but want to replace tty1 with a monitor at X.X.X.1 and tty2 with a monitor at X.X.X.2.

I mentioned full screen just to differentiate between writing single lines.

As for our Thin Clients, we're actually running them through a windows terminal server and connecting to the UNIX box via a custom TELNET session.
# 4  
Old 02-05-2009
From the ouput like:
Code:
$ oslevel
4.2.1.0
$ who -uA|grep vbe
vbe         pts/8       Feb  5 19:32     .       61790  (ant)        
$

you can find my terminal session:
Code:
*                                                                             *
*******************************************************************************
Last unsuccessful login: Fri Aug 29 10:00:41 2008 on /dev/pts/21 from ant
Last login: Thu Feb  5 19:32:05 2009 on /dev/pts/8 from ant

$ who -uA|grep vbe
vbe         pts/8       Feb  5 19:32    0:01     61790  (ant)        
vbe         pts/21      Feb  5 19:35     .       51778  (ant)        
$ ll /etc/motd
-rwxrwxrwx   1 bin      bin          960 Feb 10 2004  /etc/motd
$ cat /etc/motd>pts/8
No such file or directory
ksh: pts/8: cannot create
$ ll /dev/pts/8
crw--w--w-   1 vbe      staff     34,  8 Feb  5 19:33 /dev/pts/8
$ id
uid=90(vbe) gid=1(staff)
$ cat /etc/motd>/dev/pts/8
$

on my other session (/dev/pts/8):
Code:
spooladm    pts/17      Aug 29 07:20     .       35924  (:0.0)          
spooladm    pts/18      Aug 29 07:20    old      36182  (:0.0)          
spooladm    pts/19      Aug 29 07:20     .       36440  (:0.0)          
spooladm    pts/20      Jan  5 13:48    old      54466  (:0.0)          
$ oslevel
4.2.1.0
$ who -uA|grep vbe
vbe         pts/8       Feb  5 19:32     .       61790  (ant)        
$ *******************************************************************************
*                                                                             *
*                                                                             *
*  Welcome to AIX Version 4.2  STATION  OPAGE  51  !!!!       *
*                                                                             *
*  VOUS ETES SUR   E S C A L A  "T"  IP ADDR = xxx.xx.xx.51  BONNE JOURNEE   *
*                                                                             *
*  Please see the README file in /usr/lpp/bos for information pertinent to    *
*  this release of the AIX Operating System.                                  *
*                                                                             *
*                                                                             *
*******************************************************************************

...
It seems to work...
# 5  
Old 02-06-2009
You should check out screen. This may be a solution to your problems. It's a virtual terminal emulator which among other features:
  • Allows multiple users to view (read-only or read-write) the same TTY
  • Split a screen into multiple sections, each with its own TTY
  • Centrally or user-custom configuration scripts
  • automatic launching of programs
  • Detach/reattach screen on a different IP address/terminal

The Wikipedia article seems quite complete. Check it out. If you need help configuring, post a new thread under the Scripts or the Applications forums.
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