How to Install Munin on Ubuntu 20.04 for Server Monitoring – Guide
Munin is a web-based tool that provides system and network statistics. It shows this information through graphs.
Ubuntu 20.04 comes with Munin pre-installed, but we need to update the package repositories first. After that, we can install the Apache web server and configure it to use Munin as its data collector. ..
apt install munin libnet-netmask-perl libnet-telnet-perl libxml-parser-perl libxml-simple-perl libcache-cache-perl libdbd-mysql-perl libdbi-perl
To install Apache2 and its utilities on your computer, type the following command: apt install apache2 apache2-utils ..
Munin is a unique and powerful tool that is only accessible by the server.
To restrict access to Munin, edit the /etc/apache2/conf-enabled/munin.conf file and add the following line: LoadModule auth_module modules/mod_authn_core.so This will allow only authenticated users to access Munin. ..
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sudo passwd username To set a username/password without the sudo command, run the following command: sudo useradd username ..
1 htpasswd -c /etc/apache2/htpasswd.munin username -o user=munin
Munin is a free open source system monitoring tool. You can access Munin graphs by visiting the url like http://server-ip/munin/. ..
We first need to add a MySQL user who can read the necessary statistics. To do this we first need to create a new user and give them the appropriate permissions.
- Create a user “munin” at “localhost” with a Unix socket identity. ..
The grant “munin” was given to “localhost.” ..
We will create a munin user that will be authenticated with a Unix socket connection to the MySQL server. ..
munin_mysql_host = “localhost” munin_mysql_user = “root” munin_mysql_password = “password” We then set the connection string to mysql, create a new /etc/munin/plugin-conf.d/mysql file and add the following line to it: munin_mysql_host = “localhost” munin_mysql_user = “root” munin_mysql_password = “password” ..
2 env.mysqlconnection DBI: mysql:///information_schema
To check if user munin can’t connect to MySQL server, try switching to that user and running the commands. ..
The su – munin –shell is a command line tool that allows a user to access their current session’s environment and commands. ..
2 munin-node-configure –suggest | grep mysql
The output should look like this: The output should be formatted in a way that makes it easy to read and understand. ..
mysql_ | no | yes (+ bin_relay_log + binlog_groupcommit + Command + connections + files_tables + innodb_bpool + innodb_bpool_act + innodb_insert_buf + innodb_io + innodb_io_pend + innodb_log |
- binlog groupcommit;
- Command: connections;
- files tables;
- innodb bpool; +innodb bpool act; +innodb insert buf; +innodb io; +innodb io pend;
The table mysql has been added to the database.
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ln -s /usr/bin/git clone https://github.com/apache/commons-cli.git This will create a symbolic link to the GitHub clone, which will then allow you to run the git clone command.
1 munin-node-configure –shell | mysql grep -i “^#” | sed ’s/^#//'
The output will be like this: The output will be like this:
/ usr / share / munin / plugins / mysql_bin_relay_log ‘/ etc / munin / plugins / mysql_bin_relay_log’
mysql_binlog_groupcommit
/ usr / share / munin / plugins / mysql_commands / etc / munin / plugins / mysql_commands
ln -s ‘/ usr / share / munin / plugins / mysql_’ ‘/ etc / munin / plugins / mysql_databases’ ..
/ usr / share / munin / plugins / mysql_ ‘/ etc / munin / plugins / mysql_files_tables’
/ usr / share / munin / plugins / mysql_innodb_bpool / mysql_’ / etc / munin / plugins / mysql_innodb_bpool / mysql_innodb
In this example, the /usr/share/munin/plugins/mysql_innodb_bpool_act directory is used to store the MySQL innodb pool plugin and the /etc/munin/plugins/mysql_innodb_bpool_act directory is used to store the munin plugin.
/ usr / share / munin / plugins / mysql_innodb_insert_buf / etc / munin / plugins / mysql_
/ usr / share / munin / plugins / mysql_innodb_io / mysql_’ / etc / munin / plugins / mysql_innodb_io
In this example, the /usr/share/munin/plugins/mysql_innodb_io_pend directory is being used as a source for innodb iopend.
ln -s ‘/ usr / share / munin / plugins / mysql_’ ‘/ etc / munin / plugins / mysql_innodb_log’ ..
In this example, the /usr/share/munin/plugins/mysql_innodb_rows and /etc/munin/plugins/mysql_innodb_rows directories are used to store the mysql-related files.
/ usr / share / munin / plugins / mysql_innodb_semapores / mysql_’ / etc / munin / plugins / mysql_innodb_semapores / mysql_ innodb
/ usr / share / munin / plugins / mysql_innodb_tnx / mysql_’ / etc / munin / plugins / mysql_innodb_tnx / mysql_innodb
ln -s ‘/ usr / share / munin / plugins / mysql_’ ‘/ etc / munin / plugins / mysql_myisam_indexes’ This will create a symbolic link from the MySQL plugin directory in the Munin share to the myisam index directory in the Munin plugin directory. ..
/ usr / share / munin / plugins / mysql_network_traffic / mysql_’ / etc / munin / plugins / mysql_network_traffic ‘
/ usr / share / munin / plugins / mysql_ ‘/ etc / munin / plugins / mysql_qcache’
ln -s ‘/ usr / share / munin / plugins / mysql_’ ‘/ etc / munin / plugins / mysql_qcache_mem’ This command will create a symbolic link from the MySQL plugin directory in the Munin share to the MySQL qcache memory directory. ..
/ usr / share / munin / plugins / mysql_replication / mysql_’ / etc / munin / plugins / mysql_replication / mysql_replication
ln -s ‘/ usr / share / munin / plugins / mysql_’ ‘/ etc / munin / plugins / mysql_select_types.conf’ ..
/ usr / share / munin / plugins / mysql_slow / mysql_’ / etc / munin / plugins / mysql_slow / mysql_slow.php
ln -s ‘/ usr / share / munin / plugins / mysql_’ ‘/ etc / munin / plugins / mysql_sorts’ To install the MySQL plugin for Munin, first copy the MySQL files to their appropriate location: ..
/ usr / share / munin / plugins / mysql_table_locks ‘/ etc / munin / plugins / mysql_table_locks’
/ usr / share / munin / plugins / mysql_tmp_tables ‘/ etc / munin / plugins / mysql_’
Create symlinks to the root user’s files: sudo mkdir -p /etc/munin sudo cp -r /etc/munin/*.munin /etc/munin.old sudo munin-node start
Final note
How to Install Munin on Ubuntu 20.04 for Server Monitoring In this guide, we will show you how to install Munin on Ubuntu 20.04 server. Munin is a free and open source monitoring software that can be used to monitor your system’s performance and performance data. It is a great tool for system administrators who want to keep an eye on their servers and systems. First, you will need to install the necessary softwarerequisites for Munin: sudo apt-get install munin-cli munin-libxml2 libxml2-dev libxslt1-dev libxslt1 sudo aptitude update sudo aptitude install build-essential gcc g++ binutils automake autoconf automake-dev libtool pkgconfig makeinfo sed git gcc-multilib linux-headers-$(uname -r) linux-$(uname -r) sudo aptitude install buildroot systemd systemd-sysvcompat nginx nginx_module php5 php5_fpm python3 python3pip python3pip_module curl curl6 wget https://github.com/munin/munin/archive/master.tar.gz tar xvf master.tar.gz cd master sudo cp munin/* /usr/local/bin/munin sudo cp munin/* /usr/share/munitnodes/* sudo cp munitnodes/* /etc/* sudo chmod +x /usr/local/bin/munitnodes && ./munitnodes
