This module provides cross-distribution support for handling sysctl variables. It doesn't only set the variables in the appropriate config file, but also makes sure that they're applied at runtime.
Set the sysctl variable net.ipv4.conf.all.accept_redirects to 0:
include sysctl
sysctl::value { "net.ipv4.conf.all.accept_redirects": content => "0" }
If you want to manage your sysctl settings exclusively through Puppet, you
need to declare the class instead of using the include shortcut to set
the exclusive class parameter:
class {"sysctl": exclusive => true }
sysctl::value { "net.ipv4.conf.all.accept_redirects": content => "0" }
This will unset all custom sysctl variables set by the user/distribution first and only those defined through Puppet will remain to be actually applied.