This article will describe installing Nagios which is a web-base system monitor tool.
Table of Contents
1 Before installing Nagios
Install Postfix with this script.
2 Install Nagios
NAGIOS_PASSWD will be used for Basic authentication password of nagiosadmin user.
$ NAGIOS_PASSWD=nagios
$ cat <<EOF | sudo debconf-set-selections
nagios3-cgi nagios3/adminpassword-repeat password ${NAGIOS_PASSWD}
nagios3-cgi nagios3/adminpassword password ${NAGIOS_PASSWD}
nagios3-cgi nagios3/adminpassword-mismatch note
EOF
$ sudo apt install -y -o 'apt::install-recommends=true' nagios3
Nagios configuration to Apache2 is written in the following file. You can change Nagios configuration like Digest authentication.
/etc/apache2/conf-available/nagios3.conf
3 Access to Nagios
Access to Nagios via the following URL.
http://<server>/nagios3
Input nagiosadmin user and NAGIOS_PASSWD.
Nagios is displayed.
