# Cacti Monitoring on CentOS/RedHat 7 issues with Apache graph \[SOLVED\]

**URL:** <https://forums.percona.com/t/cacti-monitoring-on-centos-redhat-7-issues-with-apache-graph-solved/4773>\
**Category:** Percona Monitoring Plugins\
**Created:** [March 13, 2016, 6:22pm UTC](https://forums.percona.com/t/cacti-monitoring-on-centos-redhat-7-issues-with-apache-graph-solved/4773 "2016-03-13T18:22:45Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Marcus](https://avatars.discourse-cdn.com/v4/letter/m/85e7bf/32.png) [@Marcus](https://forums.percona.com/u/Marcus)\
**Post date:** [March 13, 2016, 6:22pm UTC](https://forums.percona.com/t/cacti-monitoring-on-centos-redhat-7-issues-with-apache-graph-solved/4773/1 "2016-03-13T18:22:45Z")

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Hi,

I was facing issues with Apache monitoring with Percona Plugin (empty graphs).  
When I ran from command line the script ss\_get\_by\_ssh.php did return -1.  
I solved issue installing wget on Red Hat montired server. It seems wget doesn’t come installed by default.

Regards,

Marcus.

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**Author:** ![BlairPage](https://avatars.discourse-cdn.com/v4/letter/b/90ced4/32.png) [@BlairPage](https://forums.percona.com/u/BlairPage)\
**Post date:** [March 14, 2016, 10:27am UTC](https://forums.percona.com/t/cacti-monitoring-on-centos-redhat-7-issues-with-apache-graph-solved/4773/2 "2016-03-14T10:27:48Z")

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Hey Marcus,

Strange! Good to know and glad it worked out.

~Blair Page