RHEL6 ssh cannot start a remote background process

[ndrw_cheung]

Hi. I’m using RHEL6 (version 6.5) on all servers and I came across a problem invoking a process in the background via ssh. The set up is as follows:

Server 1 :
Script : start.sh:
#!/bin/sh
ssh user1_AT_x.x.x.x –t sudo ‘/etc/init.d/test1’
#note : I cannot post the "at" sign due to being a new user, so _AT_ is the at sign
Server 2 :
Script : /etc/init.d/test1:
#!/bin/sh
./runremote.sh &


user1 exist on both server 1 and server 2 has sudo privileges.

When we do (logged in as user1 and sudo on server 1)“./start.sh” from Server 1, the script “runremote.sh” is NOT invoked. I tried removing the “&” to run runremote.sh in the foreground. That works, but the start.sh hangs and will not close the ssh connection. I also tried the following variations, but none of them work the way I wanted:
“nohup ./runremote.sh”
“nohup ./runremote.sh &”
“./runremote.sh > /var/log/runremote.log 2>&1”
“./runremote.sh < /dev/null > /var/log/runremote.log 2>&1”


How should I change the contents of these scripts so that when I do “./start.sh”, “runremote.sh” is invoked in the background and “start.sh” will close the ssh connection afterwards? If possible, I DON’T want to use any additional software such as “screen”.
Thanks in advance for answering.

-Andrew

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