Cacti : Install2015/03/05

	Install Cacti to monitor system status.
[1]	Install and start Apache httpd, refer to here.
[2]	Install PHP, refer to here.
[3]	Install and start MySQL Server, refer to here.
[4]	Install Cacti, SNMP.

# install from EPEL

[root@dlp ~]#

yum --enablerepo=epel -y install cacti net-snmp net-snmp-utils php-mysql php-snmp rrdtool

[5]	Configure SNMP (Simple Network Management Protocol).

[root@dlp ~]#

vi /etc/snmp/snmpd.conf

# line 41: comment out

com2sec notConfigUser default public

# line 74,75: uncomment and change

# change "mynetwork" to your own network

# change comunity name to anyone except public, private (for security reason)

com2sec local

localhost

Serverworld

com2sec mynetwork

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Serverworld

# line 78,79: uncomment

group MyRWGroup  any        local
group MyROGroup  any        mynetwork

# line 85: uncomment

view all    included  .1                               80

# line 93,94: uncomment

access MyROGroup ""      any       noauth    0      all    none   none
access MyRWGroup ""      any       noauth    0      all    all    all

[root@dlp ~]#

/etc/rc.d/init.d/snmpd start

Starting snmpd: [ OK ]
[root@dlp ~]#

chkconfig snmpd on

# validation (replace "Serverworld" to the comunity name you set)

[root@dlp ~]#

snmpwalk -v2c -c Serverworld localhost system

SNMPv2-MIB::sysDescr.0 = STRING: Linux dlp.srv.world 2.6.32-504.3.3.el6.x86_64 #1 SMP 
Wed Dec 17 01:55:02 UTC 2014 x86_64
SNMPv2-MIB::sysObjectID.0 = OID: NET-SNMP-MIB::netSnmpAgentOIDs.10
DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (168142) 0:28:01.42
...
...
SNMPv2-MIB::sysORUpTime.7 = Timeticks: (4) 0:00:00.04
SNMPv2-MIB::sysORUpTime.8 = Timeticks: (4) 0:00:00.04

[6]	Create a Database for Cacti and import tables.

[root@dlp ~]#

mysql -u root -p

Enter password:
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 11
Server version: 5.1.73 Source distribution

Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

# create a "Cacti" database ( set any password for 'password' section )

mysql>

create database cacti;

Query OK, 1 row affected (0.00 sec)

mysql>

grant all privileges on cacti.* to cacti@'localhost' identified by 'password';

Query OK, 0 rows affected (0.00 sec)

mysql>

flush privileges;

Query OK, 0 rows affected (0.00 sec)

mysql>

exit

Bye

[root@dlp ~]#

mysql -u cacti -p cacti < /usr/share/doc/cacti-*/cacti.sql

Enter password:

# cacti user's password

[7]	Configure Cacti.

[root@dlp ~]#

vi /etc/cron.d/cacti

# uncomment

*/5 * * * * cacti /usr/bin/php /usr/share/cacti/poller.php > /dev/null 2>&1

[root@dlp ~]#

vi /usr/share/cacti/include/config.php

# line 30: change to the connection info to MySQL DB

$database_type = "mysql";
$database_default = "cacti";
$database_hostname = "localhost";
$database_username = "

cacti

";
$database_password = "

password

";
$database_port = "3306";
$database_ssl = false;

[root@dlp ~]#

vi /etc/httpd/conf.d/cacti.conf

# line 23: add access permission if need

Allow from localhost

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[root@dlp ~]#

/etc/rc.d/init.d/httpd restart

Stopping httpd: [  OK  ]
Starting httpd: [  OK  ]

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