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Top Forums Shell Programming and Scripting [Solved] Rsh does not close connection on exit Post 302888741 by rbatte1 on Monday 17th of February 2014 06:59:14 AM
Old 02-17-2014
[Solved] Rsh does not close connection on exit

Dear all,

We have a service that we start up remotely with rsh but unfortunately, the rsh never returns to the calling server. This seems to be because the processes of the service we've just started hold the port open.
Code:
RBATTE1 @ /home/RBATTE1>netstat -na|grep 49.51
tcp4       0      0  111.222.333.444.514       111.222.333.555.1022      CLOSE_WAIT
tcp        0      0  111.222.333.444.1023      111.222.333.555.1021      FIN_WAIT_2
tcp4       0      0  111.222.333.444.50465     111.222.333.555.2049      ESTABLISHED

RBATTE1 @ /home/RBATTE1>sudo lsof -i tcp:514
COMMAND    PID USER   FD   TYPE     DEVICE SIZE/OFF NODE NAME
inetd    32516 root    6u  IPv6 0x71967de4      0t0  TCP *:shell (LISTEN)
dsrvcmd  75188 root    0u  IPv6 0x726cede4    0t125  TCP myserver.mydomain:shell->caller.mydomain:1022 (CLOSE_WAIT)

RBATTE1 @ /home/RBATTE1>

When run locally on the command line, all is well with the simple script and I can log off the session without issue or other prompt. When called with rsh, the script called does complete (we have logging to show that), so I'm wondering how I can disinherit/detach the service processes started up.

Server where script will run is AIX 5.1 Smilie and the server calling is RHEL 6.3

Suggestions would be most welcome. Many thanks, in advance,
Robin
Liverpool/Blackburn
UK

---------- Post updated at 11:59 AM ---------- Previous update was at 11:21 AM ----------

Cancel that. I managed it with a nohup xxxxx & call to start the service inside the script.


All working, and I feel pretty daft Smilie




Robin Smilie

Last edited by rbatte1; 02-17-2014 at 07:28 AM..
 

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service(8)						      System Manager's Manual							service(8)

NAME
service - run a System V init script SYNOPSIS
service SCRIPT COMMAND [OPTIONS] service --status-all service --help | -h | --version DESCRIPTION
service runs a System V init script in as predictable environment as possible, removing most environment variables and with current working directory set to /. The SCRIPT parameter specifies a System V init script, located in /etc/init.d/SCRIPT. The supported values of COMMAND depend on the invoked script, service passes COMMAND and OPTIONS it to the init script unmodified. All scripts should support at least the start and stop commands. As a special case, if COMMAND is --full-restart, the script is run twice, first with the stop command, then with the start command. service --status-all runs all init scripts, in alphabetical order, with the status command. EXIT CODES
service calls the init script and returns the status returned by it. FILES
/etc/init.d The directory containing System V init scripts. ENVIRONMENT
LANG, TERM The only environment variables passed to the init scripts. SEE ALSO
/etc/init.d/skeleton, update-rc.d(8), init(8), invoke-rc.d(8). Jan 2006 service(8)
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