Apply DNS to all the Linux servers (minions) using SaltStack
Okey, let's say you want to change nameserver preferences of about 25 Linux servers. You can do it one by one or take a breath and try SaltStack. 1. In your salt master, create a folder name dns ( /srv/salt/dns ) 2. In /srv/salt/dns/ create: * init.sls : /etc/resolv.conf: file.managed: - source: salt://dns/resolv.conf - user: root - group: root - mode: 644 - template: jinja /etc/resolvconf/resolv.conf.d/original: file.managed: - source: salt://dns/original - user: root - group: root - mode: 644 - template: jinja * resolv.conf : # Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8) # DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN nameserver my.dns.server1 nameserver my.dns.server2 search my.domain.com * original : search my.domain.com nameserver...