SSH 从 crontab (Nagios) 执行 PHP 脚本的问题

Question

i have an issue executing a PHP Script (chmod 777 nagios:nagios) as CRON.

The sh command inside the PHP script is the following:

ssh nagios@$host /backup/nagios/counter.sh

The problem is, when i run the PHP script in my local host with:

./counter_script.php 172.28.39.138

The result is showing fine on PuTTY if i run like that, but when i add the script to the crontab like:

*/5 * * * * /usr/local/nagios/homemade/counter_script.php 172.28.39.138 > /usr/local/nagios/homemade/outputest.txt

the Script wont run the remote SH and the test.txt file say Cant Connect to Remote host.

So the output in Nagios Portal is displaying a Connection Issue status too.

I can connect via SSH directly to/from both Host in PuTTY. I copied the public keys like always with this command using nagios user:

ssh-copy-id -i /home/nagios/.ssh/id_rsa.pub nagios@172.28.39.138

Someone told me it is a SSH Authority issue but i cant fix it yet, any help will be great:)

Answer 1

*/5 * * * * /usr/local/nagios/homemade/counter_script.php 172.28.39.138 > /usr/local/nagios/homemade/outputest.txt. try to keep your ssh key in new file f, and copy the ur ssh key (ssh-copy-id -i /home/nagios/.ssh/id_rsa.pub nagios@172.28.39.138) give file permission for that file in chmod 700, and remove ur ip and give this file name there.