Linux Bootable Backup

When I set up this new server, one of the things I really wanted to have was a way to make sure that everything was regularly backed up in the event of some system issue, a hardware failure, something I broke accidentally, etc. My old Mac based system used an excellent tool called Carbon Copy […]

Linux NAT Firewall Setup

A NAT Firewall is needed in many situations to allow a private network to communicate with the larger world, the most common example of this would be a home WiFi router that provides a private network space and then links to a WAN connection provided by an ISP. I was recently setting up such a […]

Linux rp_filter on multihomed system

I was recently working on a Linux system that was providing a NAT service for an environment. Initially, everything seemed to be working fine, but after some additional testing problems were discovered… What was happening was that network traffic was coming into one interface, but this interface didn’t have a route back to the source […]