# Percona SSH based configuratin failing

**URL:** <https://forums.percona.com/t/percona-ssh-based-configuratin-failing/4169>\
**Category:** Percona Monitoring Plugins\
**Created:** [April 20, 2015, 10:16am UTC](https://forums.percona.com/t/percona-ssh-based-configuratin-failing/4169 "2015-04-20T10:16:32Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![kalyan212](https://avatars.discourse-cdn.com/v4/letter/k/59ef9b/32.png) [@kalyan212](https://forums.percona.com/u/kalyan212)\
**Post date:** [April 20, 2015, 10:16am UTC](https://forums.percona.com/t/percona-ssh-based-configuratin-failing/4169/1 "2015-04-20T10:16:32Z")

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HI

su - www-data -c ‘env -i php /usr/share/cacti/site/scripts/ss\_get\_by\_ssh.php --type memory --host 10.78.203.141 --items gu,gv’

gu:-1 gv:-1 (not returing proper values)

i am able to do  
root@CACTI:/usr/share/cacti/site/scripts# ssh -i /etc/cacti/id\_rsa cacti@10.78.203.141 echo “it works”  
it works

i am not sure why i ama not getting the output

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**Author:** ![weber](https://avatars.discourse-cdn.com/v4/letter/w/da6949/32.png) [@weber](https://forums.percona.com/u/weber)\
**Post date:** [April 22, 2015, 9:33am UTC](https://forums.percona.com/t/percona-ssh-based-configuratin-failing/4169/2 "2015-04-22T09:33:39Z")

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User www-data should be able to access and use /etc/cacti/id\_rsa.  
Try your ssh command but with sudo -u www-data