Cacti : Install

Cacti : Install 2015/06/16

	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.

# 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  10.0.0.0/24 Serverworld # line 78,79: uncomment and change group MyRWGroup  v2c      local group MyROGroup  v2c      mynetwork # line 85: uncomment view all included .1 80 # line 93,94: uncomment and change access MyROGroup ""  v2c    noauth    exact    all   none   none access MyRWGroup ""  v2c    noauth    exact    all   all      all [root@dlp ~]#  systemctl start snmpd  [root@dlp ~]#  systemctl enable snmpd # 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 3.10.0-229.4.2.el7.x86_64 #1 SMP Wed May..... SNMPv2-MIB::sysObjectID.0 = OID: NET-SNMP-MIB::netSnmpAgentOIDs.10 DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (91954) 0:15:19.54 SNMPv2-MIB::sysContact.0 = STRING: Root <root@localhost> (configure /etc/snmp ..... ..... SNMPv2-MIB::sysORUpTime.9 = Timeticks: (4) 0:00:00.04 SNMPv2-MIB::sysORUpTime.10 = 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 MariaDB monitor. Commands end with ; or \g. Your MariaDB connection id is 3342 Server version: 5.5.41-MariaDB MariaDB Server Copyright (c) 2000, 2014, 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 /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 29: change to the connection info to MariaDB $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 17: add access permission if need Require host localhost Require ip 10.0.0.0/24 [root@dlp ~]#  systemctl restart httpd