HOWTO: Dynamically Set IPFilter Rules for RPC Services
I'll admit now, none of this work is mine: all credit needs to go to Borgan Chu and Shawn Ferry. All this post is doing is making it easier to find all the relevant information as it's scattered around a bit.Many people implement firewalls for security reasons, and many people encounter the one nightmare with firewalls that is RPC services, e.g. NFS. The problem with RPC services is that they use dynamic ports when they run. This makes it a bit of a nightmare to configure the respective ports as they're likely to change everytime the host reboots or the service restarts. Continue reading ►