How do I Display Nagios Host Custom Variables or Macros in the Web Interface?
How can I display custom host variables in the Nagios web interface such as _mac_address?
Solution 1:
You can do this using the notes directive inside of the host definition even if the variables are also defined their and they will show up in the host detail page (extinfo.cgi). For example:
define host {
host_name web01
display_name web01
address 8.8.4.4
_mac_address 00:21:9B:00:21:9B
_sw_port_1 sw01_g3
notes $_HOSTMAC_ADDRESS$ $_HOSTSW_PORT_1$
hostgroups +webservers
use web_servers
}