[HOWTO] Cacti Install Guide CentOS 6 - 64

[timlee]

Hi, I am trying to install cacti on my VM using CentOS6.5

I followed the guide you provided however I keep having the same error trying to access the WebUI.

FATAL: Cannot connect to MySQL server on 'cacti-cent6.localdomain'. Please make sure you have specified a valid MySQL database name in 'include/config.php'

Please help!

I have tried various config and restarted the services including httpd & mysqld, flush iptables...
but results are the same...

Code: Select all

[root@cacti-cent6 ~]# vi /etc/cacti/db.php
======output omitted========
$database_type = "mysql";
$database_default = "cacti";
$database_hostname = "cacti-cent6.localdomain";
$database_username = "cacti";
$database_password = "cacti";
$database_port = "3306";
$database_ssl = false;

Code: Select all

[root@cacti-cent6 ~]# vi /etc/cacti/db.php
======output omitted========
$database_type = "mysql";
$database_default = "cacti";
$database_hostname = "cacti-cent6.localdomain";
$database_username = "root";
$database_password = "password";
$database_port = "3306";
$database_ssl = false;

[timlee]

Hi, I am trying to install cacti on my VM using CentOS6.5

I followed the guide you provided however I keep having the same error trying to access the WebUI.

FATAL: Cannot connect to MySQL server on 'cacti-cent6.localdomain'. Please make sure you have specified a valid MySQL database name in 'include/config.php'

Please help!

I have tried various config and restarted the services including httpd & mysqld, flush iptables...
but results are the same...

Code: Select all

[root@cacti-cent6 ~]# vi /etc/cacti/db.php
======output omitted========
$database_type = "mysql";
$database_default = "cacti";
$database_hostname = "cacti-cent6.localdomain";
$database_username = "cacti";
$database_password = "cacti";
$database_port = "3306";
$database_ssl = false;

Code: Select all

[root@cacti-cent6 ~]# vi /etc/cacti/db.php
======output omitted========
$database_type = "mysql";
$database_default = "cacti";
$database_hostname = "cacti-cent6.localdomain";
$database_username = "root";
$database_password = "password";
$database_port = "3306";
$database_ssl = false;

Hi all,

I found out the answer to my own question... The problem lies with the local loopback, I need to set it as

Code: Select all

127.0.0.1               localhost.localdomain localhost

in the /etc/hosts.

This was not mentioned in any guide. Hope someone will find it useful

[phalek]

how about changing cacti-cent6.localdomain to localhost ?

[timlee]

how about changing cacti-cent6.localdomain to localhost ?

Tried that and it doesn't work.

[phalek]

what about a simple 127.0.0.1 ?

[timlee]

what about a simple 127.0.0.1 ?

Hi phalek,

This works too. Thanks!

[xmanvu]

hi,

thank for tourial , i installed cacti but when install plugin realtime have problem.

# cd /usr/share/cacti/plugins/realtime

Create a new directory called “temp”
# mkdir temp

Set the permissions on the new directory to be writable by all
# chmod 777 temp

but Realtime pop up all say :

The Image Cache Directory is not writable. Please set permissions and then attempt to open another realtime graph.

After changed The Image Cache Director as link below that working .

http://www.itechlounge.net/2013/11/linu ... ?mode=list

Console > Settings > Misc > Cache Directory

The default path is :

/var/www/html/cache/


Make sure the directory is writable :


chmod 777 /var/www/html/cache/

[phalek]

Seems like you missed this step from the guide:

Code: Select all

6.	In the “Realtime Graphs” section input “/usr/share/cacti/plugins/realtime/temp” in the “Cache Directory”

[xmanvu]

Seems like you missed this step from the guide:

Code: Select all

6.	In the “Realtime Graphs” section input “/usr/share/cacti/plugins/realtime/temp” in the “Cache Directory”

Dear Phalek,

I did it, try many times but no work.Please check pic.

6. In the “Realtime Graphs” section input “/usr/share/cacti/plugins/realtime/temp” in the “Cache Directory”
7. Click “Save”
8. Check that the “Cache Directory” now shows “[OK: DIR FOUND]”

[phalek]

Your temp dir is not 777, but only 775 ....

[xmanvu]

Your temp dir is not 777, but only 775 ....

Hi Phalek,

I try changed 775 to 777 or anythings. No working.

[phalek]

It's usually a permission issue then. I suggest you do a

Code: Select all

chown -R apache /usr/share/cacti/plugins/

And test again. Apache may simply not be able to get to the plugins directory. Maybe one of the parent directory of that temp dir doesn't have the correct permissions for apache to access ...

[xmanvu]

It's usually a permission issue then. I suggest you do a

Code: Select all

chown -R apache /usr/share/cacti/plugins/

And test again. Apache may simply not be able to get to the plugins directory. Maybe one of the parent directory of that temp dir doesn't have the correct permissions for apache to access ...

Hi, Phalek,

Nothing changed.