- \n
- An unlimited number of graph items can be defined for each graph optionally utilizing CDEFs or data sources from within cacti.<\/li>\n\n\n\n
- Automatic grouping of GPRINT graph items to AREA, STACK, and LINE[1\u20133] to allow for quick re-sequencing of graph items.<\/li>\n\n\n\n
- Data sources can be created that utilize RRDTool\u2019s \u201ccreate\u201d and \u201cupdate\u201d functions. Each data source can be used to gather local or remote data and placed on a graph.<\/li>\n\n\n\n
- It contains a \u201cdata input\u201d mechanism that allows users to define custom scripts that can be used to gather data. Each script can contain arguments that must be entered for each data source created using the script (such as an IP address).<\/li>\n\n\n\n
- Built-in SNMP support that can use php-snmp, ucd-snmp, or net-snmp.<\/li>\n\n\n\n
- A PHP-based poller is provided to execute scripts, retrieve SNMP data, and update your RRD files.<\/li>\n\n\n\n
- User-based management allows administrators to create users and assign different levels of permissions to the cacti interface.<\/li>\n\n\n\n
- Permissions can be specified per-graph for each user, making cacti suitable for co-location situations.<\/li>\n\n\n\n
- Each user can keep their graph settings for varying viewing preferences. [2]<\/a><\/li>\n<\/ul>\n\n\n\n
How To Install Cacti on Ubuntu 20.04<\/strong><\/p>\n\n\n\n
This guide is show step by step to install cacti latest version (1.2.12) on ubuntu 20.04 LTS.<\/p>\n\n\n\n
Cacti requires that the following software is installed on your system.<\/p>\n\n\n\n
- \n
- RRDTool 1.0.49 or greater, 1.4+ recommended<\/li>\n\n\n\n
- MySQL 5.x or greater<\/li>\n\n\n\n
- PHP 5.1 or greater<\/li>\n\n\n\n
- Web Server that supports PHP e.g. Apache or IIS<\/li>\n<\/ul>\n\n\n\n
Step 1: Update all system packages<\/strong><\/p>\n\n\n\n
Update all dependency before installing anything.<\/p>\n\n\n\n
$ sudo apt update && sudo apt upgrade<\/pre>\n\n\n\n
Step 2: Install Apache Webserver<\/strong><\/p>\n\n\n\n
Install Apache2 as a web server for the cacti<\/p>\n\n\n\n
$ sudo apt install -y apache2 libapache2-mod-php<\/pre>\n\n\n\n
Step 3: Install PHP and Required Extensions<\/strong><\/p>\n\n\n\n
Install a PHP and Extension for the cacti faultless work.<\/p>\n\n\n\n
$ sudo apt install -y php php-mysql php-snmp php-curl php-xml php-gd php-ldap php-mbstring php-gmp php-json php-common<\/pre>\n\n\n\n
Step 4: Install MariaDB (Database Server)<\/strong><\/p>\n\n\n\n
Install a MariaDB as a database server. MariaDB is a community-developed, commercially supported fork of the MySQL relational database management system (RDBMS), intended to remain free and open-source software under the GNU General Public License.[3]<\/a><\/p>\n\n\n\n
$ sudo apt install -y mariadb-server mariadb-client<\/pre>\n\n\n\n
Step 5: Install SNMP and rrdtool<\/strong><\/p>\n\n\n\n
Install an SNMP and rrdtool. Cacti use the SNMP protocol to collect data from the device or remote server. And rrdtool to generate a graph.<\/p>\n\n\n\n
$ sudo apt install -y snmp snmpd snmp-mibs-downloader rrdtool librrds-perl<\/pre>\n\n\n\n
Step 6: Configure the System timezone<\/strong><\/p>\n\n\n\n
Changing the Timezone Using the
timedatectl<\/code> Command. (Default is UTC)<\/p>\n\n\n\n$ sudo timedatectl list-timezones
$ sudo timedatectl set-timezone Asia\/Bangkok<\/pre>\n\n\n\nStep 7: Configure a PHP<\/strong><\/p>\n\n\n\n
Change a memory_limit, max_execution_time, and timezone in two PHP configuration file (php.ini) and save it.<\/p>\n\n\n\n
$ sudo nano \/etc\/php\/7.4\/apache2\/php.ini
$ sudo nano \/etc\/php\/7.4\/cli\/php.ini<\/pre>\n\n\n\nYou can view the list of timezone here<\/a>.<\/p>\n\n\n\n
date.timezone = \"Asia\/Bangkok\"
memory_limit = 512M
max_execution_time = 60<\/pre>\n\n\n\nSave all files and then restart the apache2 service.<\/p>\n\n\n\n
sudo systemctl restart apache2<\/pre>\n\n\n\n
Step 8: Configure a MariaDB (Database Server)<\/strong><\/p>\n\n\n\n
Change the database configuration. The value of each parameter from the cacti suggestion. It depends on the cacti version.<\/p>\n\n\n\n
$ sudo nano \/etc\/mysql\/mariadb.conf.d\/50-server.cnf<\/pre>\n\n\n\n
Insert or update the below settings in the [mysqld] section.<\/p>\n\n\n\n
collation-server = utf8mb4_unicode_ci
max_heap_table_size = 128M
tmp_table_size = 128M
join_buffer_size = 256M
innodb_file_format = Barracuda
innodb_large_prefix = 1
innodb_buffer_pool_size = 2048M
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
innodb_buffer_pool_instances = 21<\/pre>\n\n\n\nAnd then restart the MariaDB.<\/p>\n\n\n\n
$ sudo systemctl restart mysql<\/pre>\n\n\n\n
Step 9: Create Cacti\u2019s database<\/strong><\/p>\n\n\n\n
Enter to the MariaDB Server with this command without using MySQL password. When the prompt \u201cEnter password\u201d appeared press \u201center\u201d to login.<\/p>\n\n\n\n
sudo mysql -u root -p<\/pre>\n\n\n\n
![\"\"\/](\"https:\/\/miro.medium.com\/max\/700\/1*L_FUFpbYWjn3nap5S1wVfw.png\")
MariaDB Console<\/figcaption><\/figure>\n\n\n\n Create the cacti\u2019s database with this command.<\/p>\n\n\n\n
MariaDB [(none)]> create database cacti;<\/pre>\n\n\n\n
Grant the permission to the cactiuser. Replace the \u2018password\u2019 with your password. Then Flush Privilege and exit from MariaDB console.<\/p>\n\n\n\n
MariaDB [(none)]> GRANT ALL ON cacti.* TO cactiuser@localhost IDENTIFIED BY 'password';
MariaDB [(none)]> flush privileges;
MariaDB [(none)]> exit<\/pre>\n\n\n\nAnd Then, Import the mysql_test_data_timezone.sql to the MariaDB database.<\/p>\n\n\n\n
sudo mysql -u root -p mysql < \/usr\/share\/mysql\/mysql_test_data_timezone.sqlsudo mysql -u root -p<\/pre>\n\n\n\n
Grant the permission to the cactiuser to access the time_zone table.<\/p>\n\n\n\n
MariaDB [(none)]> GRANT SELECT ON mysql.time_zone_name TO cactiuser@localhost;
MariaDB [(none)]> flush privileges;
MariaDB [(none)]> exit<\/pre>\n\n\n\nStep 10: Download and Prepare a cacti setup<\/strong><\/p>\n\n\n\n
Download the cacti installation file from the Cacti\u2019s website<\/a>. On the day I wrote the cacti version is 1.2.12.<\/p>\n\n\n\n
![\"\"\/](\"https:\/\/miro.medium.com\/max\/700\/1*k82k7PCipQnLqh9-gHtjpg.png\")
Cacti\u2019s Website<\/figcaption><\/figure>\n\n\n\n Download the cacti with this command.<\/p>\n\n\n\n
$ cd \/var\/www\/html
$ sudo rm index.html
$ sudo wget https:\/\/www.cacti.net\/downloads\/cacti-latest.tar.gz<\/a><\/pre>\n\n\n\nExtract the cacti-latest.tar.gz file and move to directory \/var\/www\/html.<\/p>\n\n\n\n
$ sudo tar zxvf cacti-latest.tar.gz
$ cd cacti-1.2.12\/
$ sudo mv * \/var\/www\/html\/<\/pre>\n\n\n\nImport the Cacti\u2019s database with this command.<\/p>\n\n\n\n
$ sudo mysql -u root -p cacti < \/var\/www\/html\/cacti.sql<\/pre>\n\n\n\n
Edit the MySQL in the Cacti config file.<\/p>\n\n\n\n
$ sudo nano \/var\/www\/html\/include\/config.php<\/pre>\n\n\n\n
![\"\"\/](\"https:\/\/miro.medium.com\/max\/700\/1*0hXzYQvnHEBskyI140ZSGA.png\")
Change the password to your password in step 9<\/figcaption><\/figure>\n\n\n\n Change the Cacti Directory owner to the www-data and store the log file.<\/p>\n\n\n\n
$ sudo touch \/var\/www\/html\/log\/cacti.log
$ sudo chown -R www-data:www-data \/var\/www\/html\/*<\/pre>\n\n\n\n
![\"\"\/](\"https:\/\/miro.medium.com\/max\/700\/1*-2h3I5xLDySKziToKjHsPA.png\")
![\"\"\/](\"https:\/\/miro.medium.com\/max\/700\/1*_pPJTeMYq96RGiV5jH7FTA.png\")
![\"\"\/](\"https:\/\/miro.medium.com\/max\/700\/1*iIVDhiMCYGmWxOrDdWgDtQ.png\")
![\"\"\/](\"https:\/\/miro.medium.com\/max\/700\/1*dcRbkBF-V9faIkG2nckU5Q.png\")
![\"\"\/](\"https:\/\/miro.medium.com\/max\/700\/1*p8zTbF-T7Vsj-Qj0RS6dzA.png\")
![\"\"\/](\"https:\/\/miro.medium.com\/max\/700\/1*aCsUWWEO3KzMkwJMU-2m_w.png\")
![\"\"\/](\"https:\/\/miro.medium.com\/max\/700\/1*ZKsLGWcjunjovdShyD5nSg.png\")
![\"\"\/](\"https:\/\/miro.medium.com\/max\/700\/1*Y4dkFkZ8GyuhwqRk9WEWHA.png\")
![\"\"\/](\"https:\/\/miro.medium.com\/max\/700\/1*_O3sAZ2BA49Z6RSoV1s1Iw.png\")
![\"\"\/](\"https:\/\/miro.medium.com\/max\/700\/1*gj6GOaTIvdDKxphkPfb6FQ.png\")
![\"\"\/](\"https:\/\/miro.medium.com\/max\/700\/1*EJfQMR1_wOKlRgSUXo5B3A.png\")
![\"\"\/](\"https:\/\/miro.medium.com\/max\/700\/1*6eCCqmsf27coD7VRsK0UdA.png\")
![\"\"\/](\"https:\/\/miro.medium.com\/max\/700\/1*ymE3YzwVEj1a2KHnLqkI6Q.png\")
<\/figure>\n\n\n\n![\"\"\/](\"https:\/\/miro.medium.com\/max\/700\/1*QWwQR5aclCP84APiRzV69g.png\")
![\"\"\/](\"https:\/\/miro.medium.com\/max\/700\/1*jgkpI7-QgEjJWS6n9PIBFQ.png\")
![\"\"\/](\"https:\/\/miro.medium.com\/max\/700\/1*EwMlPiFjTq2lv0xUiiEekw.png\")
![\"\"\/](\"https:\/\/miro.medium.com\/max\/700\/1*gguPnn5MRaqahppk3HjgyA.png\")