CACTI

====================== Basic Configuration ======================

 

# timedatectl set-timezone Asia/Dhaka

# timedatectl

 

 

# vi /etc/selinux/config

 

SELINUX=disabled

😡

 

# chkconfig firewalld on

#reboot

 

# hostnamectl set-hostname graph.nmslab.net

# logout

 

# hostname

 

# nmtui

# nmcli connection down enp0s3

# nmcli connection up enp0s3

# ifconfig

 

# vim /etc/hosts

 

127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4

103.110.59.150 graph.nmslab.net graph

😡

 

# hostname

 

# adduser sysadmin

# passwd sysadmin

 

# dnf -y install openssh-clients openssh-server

or yum install openssh-clients openssh-server

 

# cd /etc/ssh/

 

#vi sshd_config

 

Port 4422

PermitRootLogin no

AllowUsers sysadmin

😡

 

# firewall-cmd –permanent –add-port=4422/tcp

# firewall-cmd –reload

 

# systemctl enable sshd

# systemctl status sshd

# systemctl restart sshd

 

Try to login remotely

#ssh sysadmin@103.110.59.150 –p 4422

 

========================== CACTI Configuration ====================

 

# yum install -y https://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rpm

# yum install -y net-snmp net-snmp-utils net-snmp-libs rrdtool

# yum install -y mariadb-server mariadb

# yum install -y php php-xml php-session php-sockets php-ldap php-gd php-json php-mysqlnd php-gmp php-mbstring php-posix php-snmp php-intl

 

# systemctl start httpd

# systemctl start snmpd

# systemctl start mariadb

 

# systemctl enable httpd

# systemctl enable snmpd

# systemctl enable mariadb

 

# vi /etc/my.cnf.d/mariadb-server.cnf

Add variables in the [mysqld] section.

 

collation-server=utf8mb4_unicode_ci

character-set-server=utf8mb4

max_heap_table_size=32M

tmp_table_size=32M

join_buffer_size=64M

# 25% Of Total System Memory

innodb_buffer_pool_size=1GB

# pool_size/128 for less than 1GB of memory

innodb_buffer_pool_instances=10

innodb_flush_log_at_timeout=3

innodb_read_io_threads=32

innodb_write_io_threads=16

innodb_io_capacity=5000

innodb_io_capacity_max=10000

 

# systemctl restart mariadb

 

# mysql -u root -p

 

create database cacti;

 

GRANT ALL ON cacti.* TO cactiuser@localhost IDENTIFIED BY ‘cactipassword’;

flush privileges;

exit

 

# mysql -u root -p mysql < /usr/share/mariadb/mysql_test_data_timezone.sql

 

# mysql -u root -p

 

GRANT SELECT ON mysql.time_zone_name TO cactiuser@localhost;

flush privileges;

exit

 

# yum install -y cacti

 

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

 

/*

* Make sure these values reflect your actual database/host/user/password

*/

$database_type = ‘mysql’;

$database_default = ‘cacti’;     —-> Edit Here

$database_hostname = ‘localhost’;

$database_username = ‘cactiuser’;   —-> Edit Here

$database_password = ‘cactipassword’;  —-> Edit Here

$database_port = ‘3306’;

 

# vi /etc/cron.d/cacti

 

Uncomment the below line.

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

 

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

 

Alias /cacti /usr/share/cacti

<Directory /usr/share/cacti/>

<IfModule mod_authz_core.c>

# httpd 2.4

Require all granted—> Edit Here

</IfModule>

<IfModule !mod_authz_core.c>

# httpd 2.2

Order deny,allow

Deny from all

Allow from localhost

</IfModule>

</Directory>

 

# vi /etc/php.ini

 

Update the PHP parameters.

 

date.timezone = Asia/Dhaka

memory_limit = 512M

max_execution_time = 300

 

# systemctl restart httpd

# systemctl restart php-fpm

 

# firewall-cmd –permanent –add-service=http

# firewall-cmd –reload

 

http://your-ip-address/cacti

 

The initial login details:

Username: admin

Password: admin [new password will be Security@321]

 

=================== Password Reset ==============================

 

To reset the admin account password back to the default of ‘admin’, connect to your Cacti database at the command line.

 

shell> mysql -u root -p cacti

 

Now execute the following SQL:

 

mysql> update user_auth set password=md5(‘admin’) where username=’admin’;