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Full Discussion: Issue with "rsh" on RedHat
Top Forums UNIX for Advanced & Expert Users Issue with "rsh" on RedHat Post 303028547 by gull04 on Thursday 10th of January 2019 09:55:50 AM
Old 01-10-2019
Issue with "rsh" on RedHat
Hi Folks,

I feel that I should be posting this in the Unix for Dummies Forum and will probably wish I'd created an account and done just that - but here goes anyway.

I have two identical servers both Dell R430's both running RedHat Enterprise Server 7.4 and the same kernel, both have the same network config although they are located at different sites - all good so far!

During the setup of the servers we run a script which has the following command line entry;

Code:
rsh 10.3.100.95 -l autoupd mkdir -p /var/dr/uploads/${hostname}

On one host this works fine on the other host the script hangs at this point!

So to test I did the following on the two hosts;
Host 1 - the one that works!
Code:
[root@fbasphmsip1 autodoc]# uname -a
Linux fbasphmsip1 3.10.0-693.el7.x86_64 #1 SMP Thu Jul 6 19:56:57 EDT 2017 x86_64 x86_64 x86_64 GNU/Linux
[root@fbasphmsip1 autodoc]# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 7.4 (Maipo)
[root@fbasphmsip1 autodoc]# rsh -l autoupd 10.3.100.95 uname -s
SunOS
[root@fbasphmsip1 autodoc]# rsh -l autoupd 10.3.100.95 uname -a
SunOS isd250 5.10 Generic_150400-46 sun4v sparc sun4v
[root@fbasphmsip1 autodoc]#

Host 2 - the one that doesn't work!
Code:
[root@fbakirmsir1 autodoc]# uname -a
Linux fbakirmsir1 3.10.0-693.el7.x86_64 #1 SMP Thu Jul 6 19:56:57 EDT 2017 x86_64 x86_64 x86_64 GNU/Linux
[root@fbakirmsir1 autodoc]# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 7.4 (Maipo)
[root@fbakirmsir1 autodoc]# rsh -l autoupd 10.3.100.95 uname -s
^C
[root@fbakirmsir1 autodoc]#

It all hangs and you have to "ctrl C" to break out, but by doing;
Code:
[root@fbakirmsir1 autodoc]#  rsh -l autoupd 10.3.100.95
Last login: Thu Jan 10 14:20:32 from fbakirmsir1
$ uname -s
SunOS
$ uname -a
SunOS isd250 5.10 Generic_150400-46 sun4v sparc sun4v
$ exit
rlogin: connection closed.
[root@fbakirmsir1 autodoc]#

Any one want to hazzard a guess?

Regards

Gull04
This User Gave Thanks to gull04 For This Post:
Neo
 

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