In most Linux distributions, if there are multiple entries for a host in /etc/hosts the first entry has precedence. With the Puppet host resource, if there are multiple entries for that name, Puppet will modify the last entry.
So if a system has a /etc/hosts file with the following entries: 127.0.0.5 testhost 127.0.0.6 testhost testhost will resolve to 127.0.0.5 When a Puppet host resource is applied to that server like host { 'testhost': ip => '127.0.0.7', } The /etc/hosts file will become 127.0.0.5 testhost 127.0.0.7 testhost And testhost will still resolve to 127.0.0.5. I have seen this behavior in Puppet 6 and Puppet 7. -- You received this message because you are subscribed to the Google Groups "Puppet Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to puppet-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/puppet-users/f9af2d92-f6f7-47c7-9bcf-f08bfe56bb2an%40googlegroups.com.