Cacti

De Admin -- TALEVAS.
(Différences entre les versions)
Ligne 1 : Ligne 1 :
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== DOC DE gentoo-wiki.com ==
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[[Image:cacti.png|right]]
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== Getting Started ==
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Before installing cacti check for net-snmp package.
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[[Cacti/SNMP host setup]]
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You will probably need the following USE flags set:
 +
 +
USE = mysql xml sockets vhosts
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 +
For php to work correctly
 +
 +
You will probably need the following USE flags set:
 +
 +
USE = apache2 snmp vhosts
 +
 +
For cacti.
 +
 +
To install [[Cacti]] run the following command:
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emerge cacti
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This will install cacti onto your system.
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 +
If you already installed php, but without xml flag set, you should re-emerge php with USE="xml" first of all!
 +
The same applies for the sockets flag.
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 +
NOTE: You have to run the command
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webapp-config -I -h localhost -d cacti cacti <version  #>
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after you run the emerge.
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== Config ==
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After installation you will need to edit the config file and insert the proper data to fit your installation
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{{Box File|<path to cacti>include/config.php|
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<pre> ...
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$database_type = "mysql";
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$database_default = "cacti";
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$database_hostname = "localhost";
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$database_username = "cactiuser";
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$database_password = "cactipass";
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$database_port = "3306";
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... </pre>
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}}
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== Install the database ==
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First you need to create a database named 'cacti' with a user named cactiuser
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mysql -u root -p
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mysql> create database cacti;
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mysql> grant all on cacti.* to cactiuser@localhost;
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mysql> set password for cactiuser@localhost=password('cactipass');
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mysql> exit
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If this is a fresh installation of mysql you might get a message like "Can't connect to local MySQL server through Can't connect to local MySQL server through
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socket ''/var/run/mysqld/mysqld.sock'' (2)" . Just run mysql_install_db
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While in the cacti folder run this command to insert the default database
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mysql -u cactiuser -p cacti < cacti.sql
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Finish the configuration by accessing the cacti web page
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http://url/to/cacti/
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Configure the required file paths. If you're going to login for the first time,
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the password-username pair is admin-admin by default.
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Set the permissions on the cacti directories to be able to generate the graph/log. Execute this command in the cacti folder.
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chown -R apache:apache rra/ log/
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== Crontab ==
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as your cacti user add the following to the [[cron]] file
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*/5 * * * * apache php <cacti path>/cacti/poller.php > /dev/null 2>&1
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 +
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notice, under vixie cron you do not specify user account that the cronjob is ran, so you must use
 +
*/5 * * * * php <cacti path>/cacti/poller.php > /dev/null 2>&1
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== Troubleshooting ==
 +
If no graphs are generated and you receieve the following message in your cron logs,  this indicates that an entry can not be found for the apache user in /etc/shadow.
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<pre>
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su: Authentication service cannot retrieve authentication info.
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</pre>
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This can be fixed by adding it with the following command:
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<pre>pwconv</pre>
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== More ==
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* [[Cacti]]
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* [[Cacti/Installation]]
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* [[Cacti/SNMP host setup]]
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* [[Cacti/Hacking prevention]]
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* http://cacti.net
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{{subpage}}
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 +
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== Déplacer CACTI dans le serveur ==
 
== Déplacer CACTI dans le serveur ==
  

Version du 3 avril 2008 à 16:27

Sommaire

DOC DE gentoo-wiki.com

Fichier:Cacti.png

Getting Started

Before installing cacti check for net-snmp package. 

Cacti/SNMP host setup

You will probably need the following USE flags set: 

USE = mysql xml sockets vhosts

For php to work correctly

You will probably need the following USE flags set: 

USE = apache2 snmp vhosts

For cacti.

To install Cacti run the following command: 

emerge cacti

This will install cacti onto your system.

If you already installed php, but without xml flag set, you should re-emerge php with USE="xml" first of all! The same applies for the sockets flag.

NOTE: You have to run the command 

webapp-config -I -h localhost -d cacti cacti <version  #>

after you run the emerge.

Config

After installation you will need to edit the config file and insert the proper data to fit your installation Modèle:Box File

Install the database

First you need to create a database named 'cacti' with a user named cactiuser 

mysql -u root -p
mysql> create database cacti;
mysql> grant all on cacti.* to cactiuser@localhost;
mysql> set password for cactiuser@localhost=password('cactipass');
mysql> exit


If this is a fresh installation of mysql you might get a message like "Can't connect to local MySQL server through Can't connect to local MySQL server through socket /var/run/mysqld/mysqld.sock (2)" . Just run mysql_install_db


While in the cacti folder run this command to insert the default database 

mysql -u cactiuser -p cacti < cacti.sql

Finish the configuration by accessing the cacti web page 

http://url/to/cacti/

Configure the required file paths. If you're going to login for the first time, the password-username pair is admin-admin by default.

Set the permissions on the cacti directories to be able to generate the graph/log. Execute this command in the cacti folder. 

chown -R apache:apache rra/ log/

Crontab

as your cacti user add the following to the cron file 

*/5 * * * * apache php <cacti path>/cacti/poller.php > /dev/null 2>&1


notice, under vixie cron you do not specify user account that the cronjob is ran, so you must use 

*/5 * * * * php <cacti path>/cacti/poller.php > /dev/null 2>&1

Troubleshooting

If no graphs are generated and you receieve the following message in your cron logs, this indicates that an entry can not be found for the apache user in /etc/shadow. 

su: Authentication service cannot retrieve authentication info.

This can be fixed by adding it with the following command: 

pwconv

More

Modèle:Subpage


Déplacer CACTI dans le serveur

Il faut en plus de copier les fichier refaire l'index des fichiers rra => 

php rebuild_poller_cache.php

Et ca JAZZ ensuite

Ajouter un user sur le serveur distant

net-snmp-config --create-snmpv3-user -a "my_password" my_user

Ouvrir le port 161 pour snmp

iptables -A INPUT -p udp --dport 161 -i eth0 -j ACCEPT

Récupérée de « http://wiki.umbo.fr/index.php?title=Cacti »