NSD
Overview
This plugin gathers stats from NSD - an authoritative DNS name server.
Configuration
# A plugin to collect stats from the NSD DNS resolver
[[inputs.nsd]]
## Address of server to connect to, optionally ':port'. Defaults to the
## address in the nsd config file.
server = "127.0.0.1:8953"
## If running as a restricted user you can prepend sudo for additional access:
# use_sudo = false
## The default location of the nsd-control binary can be overridden with:
# binary = "/usr/sbin/nsd-control"
## The default location of the nsd config file can be overridden with:
# config_file = "/etc/nsd/nsd.conf"
## The default timeout of 1s can be overridden with:
# timeout = "1s"
Permissions
It's important to note that this plugin references nsd-control, which may require additional permissions to execute successfully. Depending on the user/group permissions of the user executing this plugin, you may need to alter the group membership, set facls, or use sudo.
Group membership (Recommended)
$ groups cua
cua : cua
$ usermod -a -G nsd cua
$ groups cua
cua : cua nsd
Sudo privileges
If you use this method, you will need the following in your config:
[[inputs.nsd]]
use_sudo = true
You will also need to update your sudoers file:
$ visudo
# Add the following line:
Cmnd_Alias NSDCONTROLCTL = /usr/sbin/nsd-control
cua ALL=(ALL) NOPASSWD: NSDCONTROLCTL
Defaults!NSDCONTROLCTL !logfile, !syslog, !pam_session
Please use the solution you see as most appropriate.