Cacti : Install2016/01/17

	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 MariaDB Server, refer to here.
[4]	Install Cacti, SNMP.

root@dlp:~#

apt-get -y install cacti snmp snmpd snmp-mibs-downloader php5-mysql php5-snmp rrdtool

# select apache2
   +-------------------------+ Configuring cacti +--------------------------+
   | Please select the web server for which Cacti should be automatically   |
   | configured.                                                            |
   |                                                                        |
   | Select "None" if you would like to configure the web server manually.  |
   |                                                                        |
   | Web server:                                                            |
   |                                                                        |
   |                                apache2                                 |
   |                                lighttpd                                |
   |                                None                                    |
   |                                                                        |
   |                                                                        |
   |                                 <Ok>                                   |
   |                                                                        |
   +------------------------------------------------------------------------+

# select No
 +---------------------------+ Configuring cacti +---------------------------+
 |                                                                           |
 | The cacti package must have a database installed and configured before    |
 | it can be used.  This can be optionally handled with dbconfig-common.     |
 |                                                                           |
 | If you are an advanced database administrator and know that you want to   |
 | perform this configuration manually, or if your database has already      |
 | been installed and configured, you should refuse this option.  Details    |
 | on what needs to be done should most likely be provided in                |
 | /usr/share/doc/cacti.                                                     |
 |                                                                           |
 | Otherwise, you should probably choose this option.                        |
 |                                                                           |
 | Configure database for cacti with dbconfig-common?                        |
 |                                                                           |
 |                    <Yes>                       <No>                       |
 |                                                                           |
 +---------------------------------------------------------------------------+

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

root@dlp:~#

vi /etc/snmp/snmp.conf

# line 4: comment out

mibs :

root@dlp:~#

vi /etc/snmp/snmpd.conf

# line 49: uncomment and change to any comunity name you like

rocommunity

Serverworld

localhost

# line 51: comment out

rocommunity public default -V systemonly

root@dlp:~#

/etc/init.d/snmpd restart

* Restarting network management services:

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

root@dlp:~#

snmpwalk -v 2c -c Serverworld localhost system

SNMPv2-MIB::sysDescr.0 = STRING: Linux dlp.srv.world 3.13.0-74-generic 
#118-Ubuntu SMP Thu Dec 17 22:52:10 UTC 2015 x86_64
SNMPv2-MIB::sysObjectID.0 = OID: NET-SNMP-MIB::netSnmpAgentOIDs.10
DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (18674) 0:03:06.74
.....
.....
SNMPv2-MIB::sysORUpTime.9 = Timeticks: (0) 0:00:00.00
SNMPv2-MIB::sysORUpTime.10 = Timeticks: (0) 0:00:00.00

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

root@dlp:~#

mysql -u root -p

Enter password:
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 57
Server version: 5.5.46-MariaDB-1ubuntu0.14.04.2 (Ubuntu)

Copyright (c) 2000, 2015, Oracle, MariaDB Corporation Ab and others.

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

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

MariaDB [(none)]>

create database cacti;

Query OK, 1 row affected (0.00 sec)

MariaDB [(none)]>

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

Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]>

flush privileges;

Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]>

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

# line 42: change Cacti's DB connection info

$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/apache2/conf-available/cacti.conf

# line 17: change access permission

Require all granted

Require host localhost
Require ip 10.0.0.0/24

root@dlp:~#

/etc/init.d/apache2 restart

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