install cacti on fedora 34

Install Cacti (Network Monitoring) on Fedora

First, we need to install following dependency packages one-by-one using the default package manager tool as shown.

dnf upgrade

Install Apache

dnf install httpd httpd-devel

Install MySQL

dnf install mariadb-server -y

Install PHP

for previous version like 33,32,30

dnf config-manager --set-enabled remi

dnf -y install epel-release

dnf module reset php

dnf module install php:remi-7.4

then do this

you can use direct only new version start from fedora 34

dnf install php  php-cli php-fpm php-mysqlnd php-zip php-devel php-gd php-mcrypt php-mbstring php-curl php-xml php-pear php-bcmath php-json

Install PHP-SNMP

dnf install php-snmp

Install NET-SNMP

dnf install net-snmp-utils net-snmp-libs

Install RRDTool

dnf install rrdtool

all packages in one command you may use one command instead step by step

dnf install httpd httpd-devel mariadb-server php-mysqlnd php-pear php-common php-gd php-devel php php-mbstring php-cli php-snmp net-snmp-utils net-snmp-libs rrdtool

Starting Apache, MySQL, and SNMP Services

Once you’ve installed all the required software’s for Cacti installation, let’s start them one-by-one using following commands.

systemctl start httpd.service

systemctl start mariadb.service

systemctl start snmpd.service

(please correct the suggested settings in your /etc/php.ini file as shown and restart Apache after making changes)

memory_limit = 512M

max_execution_time = 60

date.timezone = Asia/karachi

check timezome list on fedora

timedatectl list-timezones

Asia/karachi

And make sure your fedora time should be matches with php timezone

To set use command on fedora

timedatectl set-timezone Asia/karachi

Configure System Start-up Links

Configuring Apache, MySQL and SNMP Services to start on boot.

systemctl enable httpd.service

systemctl enable mariadb.service

systemctl enable snmpd.service

Install Cacti on Fedora

Here, you need to install and enable the EPEL Repository. Once you’ve enabled the repository, type the following command to install Cacti application.

dnf install epel-release -y >>>>>not required for version fedora 34 need for old version i.e 33,29,30,31,32 etc

dnf install cacti

Configuring MySQL Server for Cacti Installation

We need to configure MySQL for Cacti, to do this we need to secure a newly installed MySQL server and then we will create Cacti database with user Cacti. If you’re MySQL is already installed and secured, then don’t need to do it again.

mysql_secure_installation

>>> this is optional you can skip this command for unsecure mysql

Create MySQL Cacti Database

Login into MySQL server with a newly created password and create Cacti database with user Cacti and set the password for it.

mysql -u root -p

create database cacti;

GRANT ALL ON cacti.* TO cacti@localhost IDENTIFIED BY 'password';

FLUSH privileges;

quit;

Similarly, you also need to grant access to the MySQL TimeZone database for user Cacti, so that the database is populated with global TimeZone information.

mysql -u root -p mysql < /usr/share/mysql/mysql_test_data_timezone.sql >>>> old version

mysql -u root -p mysql < /usr/share/mariadb/mysql_test_data_timezone.sql >>>>> new version

mysql -u root -p

use mysql;

GRANT SELECT ON mysql.time_zone_name TO cacti@localhost;

flush privileges;

quit

Install Cacti Tables to MySQL

Find out the database file path using RPM command, to install cacti tables into newly created Cacti database, use the following command.

rpm -ql cacti | grep cacti.sql

/usr/share/doc/cacti-1.2.18/cacti.sql

/usr/share/doc/cacti/cacti.sql

Now we’ve of the location of Cacti.sql file, type the following command to install tables, here you need to type the Cacti user password.

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

Configure MySQL settings for Cacti

Open the file called /etc/cacti/db.php with any editor.

Make the following changes and save the file. Make sure you set password correctly.

$database_type = 'mysql';

$database_default = 'cacti';

$database_hostname = 'localhost';

$database_username = 'cacti';

$database_password = 'password';

$database_port = '3306';

$database_retries = 5;

$database_ssl = false;

Database Tuning

Cacti recommend changing MariaDB settings for better performances. Edit the MariaDB configuration file.

nano /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 = 64M

tmp_table_size = 64M

join_buffer_size = 128M

innodb_file_format = Barracuda

innodb_large_prefix = 1

innodb_flush_log_at_timeout = 3

innodb_buffer_pool_size = 1GB

innodb_buffer_pool_instances = 10

innodb_io_capacity = 5000

innodb_io_capacity_max = 10000

Configuring Firewall for Cacti

firewall-cmd --permanent --zone=public --add-service=http

firewall-cmd --reload

Configuring Apache Server for Cacti Installation

Open file called /etc/httpd/conf.d/cacti.conf with your choice of editor.

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

You need to enable access to Cacti application for your local network or per IP level. For example, we’ve enabled access to our local LAN network 172.16.0.0/16. In your case, it would be different.

In the latest version of Apache (ex: Apache 2.4), you may need to change according to the following settings.

# to access your Cacti installation, change the httpd ACLs below.

# For example:

# On httpd 2.4, change "Require host localhost" to "Require all granted".

# On httpd 2.2, change "Allow from localhost" to "Allow from all".

Alias /cacti /usr/share/cacti

# httpd 2.4

Require all granted

</IfModule>

# httpd 2.2

Order deny,allow

Deny from all

Allow from all

</IfModule>

</Directory>

Finally, restart the Apache service.

service httpd restart

systemctl restart httpd.service

Setting Cron for Cacti

Open file /etc/cron.d/cacti.

Uncomment the following line. The poller.php script runs every 5mins and collects data of known host which is used by Cacti application to display graphs.

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

SeLINUX should be disabled

pen ‘/etc/sysconfig/selinux‘ file and change the option from ‘permissive‘ to ‘disabled‘.

nano /etc/sysconfig/selinux

SELINUX=permissive

SELINUX=disabled

Changing the Apache Port

nano /etc/httpd/conf/httpd.conf

In the file, find the 'Listen' and find the following statement as Listen 80.

Listen 80 to 8181 anyportnumber
Listen yourIP: 8181

Finally

>>this step is very important

to fix writeable issue

/usr/share/cacti/log

chkconfig httpd on

systemctl enable httpd.services

systemctl start httpd.services

chkconfig snmpd on

chkconfig mysqld on

sudo chown -R apache:apache /usr/share/cacti/log/

chown -R root:root/usr/share/cacti/log/

sudo chown -R normal_user_name:normal_User_NAME /usr/share/cacti/log/

>>i.e saad

After reboot you will have to start them again so it’s better to change this so these services always start at boot:

you may required while finshing cacti installtion setup:

Set the SELinux context for Cacti logs.

yum install -y policycoreutils-python

semanage fcontext -a -t httpd_sys_rw_content_t "/var/log/cacti(/.*)?"

restorecon -Rv /var/log/cacti/

Running Cacti Installer Setup

Finally, Cacti is ready, just go to http://localhost/cacti/ & follow the installer instruction through the following screens. Enter the default login details and hit Enter button.

User: admin

Password: admin

nano /etc/snmp/smpd_con

rwcommunity cacti 192.168.88.151

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